Harris, TX
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Harris in Texas · Population: 4,758,579
TRI sites such as Tm Deer Park Services LP; Lyondell Chemical Co; Exxonmobil Refining & Supply Baytown Refinery (part); SDWIS systems such as CITY OF PASADENA; CLEAR LAKE CITY WATER AUTHORITY; HARRIS COUNTY MUD 165; NPL sites such as Brio Refining, Inc.; Crystal Chemical Co.; Dixie Oil Processors, Inc. anchor Harris, TX's EPA extract. Derived burden score 100/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Harris include CITY OF DEER PARK; FORT BEND COUNTY MUD 30; HARRIS COUNTY MUD 24, while Tm Deer Park Services LP leads reported TRI pounds among local Form R filers. AQS median AQI 61 / peak 201 in 2024.
Burden score 100/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Harris -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Harris, TX: EPA TRI 2023 reporting year
Same facilities, both years
-6.2%
352 facilities that filed in 2022 and 2023
Whole inventory
-5.6%
45.6 million lb → 43.0 million lb, every facility that filed
Between the two reporting years, 17 facilities filed for the first time and 15 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Harris, TX's total reported releases fell from 45.6 million lb in 2022 to 42.7 million lb in 2023, based on EPA TRI filings.
- Harris, TX's water releases fell from 4.6 million lb in 2022 to 4.0 million lb in 2023, based on EPA TRI filings.
- Harris, TX's land releases fell from 19.3 million lb in 2022 to 18.0 million lb in 2023, based on EPA TRI filings.
- Harris, TX's off-site transfers fell from 10.8 million lb in 2022 to 10.3 million lb in 2023, based on EPA TRI filings.
County population (Census ACS)
4,758,579
TRI Facilities
50
Water Systems
909
Superfund Sites
16
Total Releases
196.6M lbs
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 50 (14%) | 269 | 33 | 201 |
| 2023 | 44 (12%) | 273 | 38 | 205 |
| 2022 | 57 (16%) | 281 | 22 | 179 |
| 2021 | 64 (18%) | 276 | 18 | 179 |
| 2020 | 109 (30%) | 240 | 15 | 190 |
2024 Good Air Quality: 14% of days
Unhealthy days: 47
Median AQI: 61
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Texas, see the EPA's AirNow.gov.
Water Systems (909)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF PASADENA | 152,000 | 0 |
| CLEAR LAKE CITY WATER AUTHORITY | 89,702 | 0 |
| HARRIS COUNTY MUD 165 | 40,503 | 0 |
| CITY OF LA PORTE | 36,569 | 0 |
| CITY OF DEER PARK | 34,495 | 1 |
| NORTHWEST HARRIS COUNTY MUD 5 | 25,425 | 0 |
| BRIDGESTONE MUD | 24,528 | 0 |
| TIMBER LANE UTILITY DISTRICT | 24,507 | 0 |
| HARRIS COUNTY FWSD 51 | 19,671 | 0 |
| CIMARRON MUD | 19,338 | 0 |
| CITY OF WEST UNIVERSITY PLACE | 19,200 | 0 |
| HARRIS COUNTY MUD 82 | 18,990 | 0 |
| NORTHWEST PARK MUD | 18,168 | 0 |
| CLEAR BROOK CITY MUD | 18,108 | 0 |
| CITY OF BELLAIRE | 18,090 | 0 |
| HARRIS MONTGOMERY COUNTIES MUD 386 | 18,018 | 0 |
| HARRIS COUNTY MUD 53 | 17,856 | 0 |
| CITY OF TOMBALL | 17,532 | 0 |
| CITY OF SOUTH HOUSTON | 17,397 | 0 |
| HARRIS COUNTY MUD 26 | 17,178 | 0 |
| HARRIS COUNTY MUD 71 | 17,079 | 0 |
| FORT BEND COUNTY MUD 30 | 16,794 | 1 |
| HARRIS COUNTY MUD 167 | 16,761 | 0 |
| HARRIS COUNTY MUD 55 HERITAGE PARK | 16,392 | 0 |
| CITY OF HUMBLE | 15,616 | 0 |
| HARRIS COUNTY FWSD 61 | 15,400 | 0 |
| HARRIS COUNTY MUD 105 | 14,925 | 0 |
| PECAN GROVE MUD | 14,913 | 0 |
| HARRIS COUNTY MUD 200 CRANBROOK | 14,868 | 0 |
| HARRIS COUNTY MUD 24 | 14,796 | 3 |
| CNP UTILITY DISTRICT | 14,718 | 0 |
| HARRIS COUNTY MUD 285 | 14,268 | 0 |
| MEADOWHILL REGIONAL MUD | 13,863 | 0 |
| HARRIS COUNTY WCID 21 | 13,845 | 3 |
| REMINGTON MUD 1 | 13,746 | 0 |
| CITY OF WEBSTER | 13,710 | 0 |
| FORT BEND COUNTY MUD 23 | 13,695 | 0 |
| CITY OF SEABROOK | 13,560 | 0 |
| SOUTHERN MONTGOMERY COUNTY MUD | 13,372 | 0 |
| HARRIS COUNTY MUD 120 | 13,197 | 0 |
| NEWPORT MUD | 13,191 | 0 |
| HARRIS COUNTY MUD 157 | 13,062 | 8 |
| HARRIS COUNTY MUD 1 | 12,342 | 0 |
| NORTHAMPTON MUD | 12,162 | 0 |
| HARRIS COUNTY MUD 368 | 11,835 | 0 |
| HARRIS COUNTY MUD 153 | 11,781 | 0 |
| FORT BEND COUNTY MUD 142 | 11,595 | 0 |
| RAYFORD ROAD MUD | 11,550 | 0 |
| HARRIS COUNTY MUD 81 | 11,514 | 0 |
| MEMORIAL VILLAGES WATER AUTHORITY | 11,382 | 4 |
| HARRIS COUNTY UD 6 | 11,262 | 0 |
| HARRIS COUNTY WCID 36 | 11,073 | 0 |
| CYPRESS HILL MUD 1 | 11,052 | 0 |
| HARRIS COUNTY MUD 49 | 10,893 | 0 |
| FORT BEND COUNTY MUD 58 | 10,629 | 0 |
| HARRIS COUNTY MUD 278 | 10,584 | 0 |
| HARRIS COUNTY WCID 96 | 10,530 | 0 |
| GREENWOOD UTILITY DISTRICT | 10,527 | 0 |
| FORT BEND COUNTY MUD 182 | 10,498 | 0 |
| CITY OF GALENA PARK | 10,487 | 3 |
| HARRIS COUNTY MUD 489 | 10,476 | 0 |
| HARRIS COUNTY MUD 230 | 10,404 | 0 |
| HARRIS COUNTY MUD 102 | 10,401 | 0 |
| LANGHAM CREEK UTILITY DISTRICT | 10,377 | 0 |
| FORT BEND COUNTY MUD 151 | 10,233 | 0 |
| MISSION BEND MUD 2 | 10,155 | 4 |
| HARRIS COUNTY WCID 109 | 10,134 | 0 |
| PONDEROSA FOREST UTILITY DISTRICT | 10,101 | 0 |
| HARRIS COUNTY WCID 110 | 9,807 | 0 |
| CITY OF JACINTO CITY | 9,613 | 0 |
| HARRIS COUNTY MUD 109 | 9,501 | 0 |
| TRAIL OF THE LAKES MUD | 9,480 | 26 |
| HARRIS COUNTY MUD 188 | 9,453 | 0 |
| HUNTERS GLEN MUD | 9,405 | 0 |
| HARRIS-FORT BEND COUNTIES MUD 3 | 9,297 | 0 |
| HARRIS COUNTY WCID 119 | 9,150 | 0 |
| NORTH MISSION GLEN MUD | 9,096 | 0 |
| HARRIS COUNTY WCID 89 | 9,033 | 0 |
| BARKER CYPRESS MUD | 8,976 | 0 |
| SUNBELT FWSD HIGH MEADOWS SUBDIVISION | 8,946 | 0 |
| SPRING CREEK UTILITY DISTRICT | 8,919 | 0 |
| CHELFORD CITY MUD | 8,917 | 0 |
| FAULKEY GULLY MUD | 8,907 | 0 |
| MASON CREEK UTILITY DISTRICT | 8,900 | 0 |
| HARRIS COUNTY MUD 391 | 8,835 | 0 |
| GALVESTON COUNTY WCID 12 | 8,721 | 0 |
| HARRIS COUNTY MUD 132 | 8,682 | 0 |
| KINGSBRIDGE MUD | 8,663 | 3 |
| HARRIS COUNTY WCID 1 | 8,559 | 0 |
| JACKRABBIT ROAD PUD | 8,346 | 0 |
| HARRIS COUNTY MUD 154 | 8,289 | 0 |
| HARRIS COUNTY MUD 290 | 8,259 | 0 |
| WEST HARRIS COUNTY MUD 11 | 8,205 | 0 |
| BISSONNET MUD | 8,160 | 0 |
| WEST PARK MUD | 8,106 | 0 |
| ADDICKS UTILITY DISTRICT | 8,076 | 0 |
| HARRIS COUNTY MUD 468 | 7,944 | 0 |
| NORTHWEST HARRIS COUNTY MUD 9 | 7,848 | 0 |
| SIENNA MUD 10 | 7,824 | 0 |
| FIRST COLONY MUD 9 | 7,818 | 0 |
| CITY OF JERSEY VILLAGE | 7,792 | 0 |
| NORTHWEST HARRIS COUNTY MUD 12 | 7,764 | 0 |
| NORTHWEST HARRIS COUNTY MUD 10 | 7,671 | 0 |
| WESTON MUD | 7,647 | 0 |
| BLUE RIDGE WEST MUD | 7,545 | 12 |
| HARRIS COUNTY MUD 151 | 7,464 | 0 |
| CY CHAMP PUD | 7,428 | 0 |
| HARRIS COUNTY MUD 419 | 7,389 | 0 |
| SIENNA MUD 3 | 7,365 | 0 |
| FORT BEND COUNTY MUD 133 | 7,362 | 0 |
| FORT BEND COUNTY MUD 134B | 7,356 | 0 |
| EMERALD FOREST UTILITY DISTRICT | 7,326 | 0 |
| PARKWAY UTILITY DISTRICT | 7,323 | 2 |
| HARRIS COUNTY MUD 152 | 7,314 | 0 |
| FORT BEND COUNTY MUD 134C | 7,260 | 0 |
| FORT BEND COUNTY MUD 143 WATER VIEW ESTA | 7,245 | 0 |
| HARRIS COUNTY MUD 504 | 7,242 | 0 |
| MALCOMSON ROAD UTILITY DISTRICT | 7,231 | 0 |
| HARRIS COUNTY MUD 449 | 7,179 | 0 |
| WINDFERN FOREST UTILITY DISTRICT | 7,170 | 1 |
| LAKE FOREST UTILITY DISTRICT | 7,106 | 0 |
| NOTTINGHAM COUNTRY MUD | 7,089 | 1 |
| HARRIS COUNTY MUD 196 | 7,026 | 2 |
| DOWDELL PUD | 7,002 | 0 |
| HARRIS COUNTY MUD 96 | 6,993 | 0 |
| SAGEMEADOW UTILITY DISTRICT | 6,975 | 0 |
| REID ROAD MUD 1 | 6,969 | 0 |
| BRAZORIA COUNTY MUD 6 | 6,926 | 0 |
| WEST HARRIS COUNTY MUD 2 CHASE | 6,921 | 0 |
| NORTHWEST HARRIS COUNTY MUD 15 | 6,915 | 0 |
| HARRIS COUNTY MUD 189 | 6,906 | 0 |
| FORT BEND COUNTY MUD 2 | 6,819 | 0 |
| SUNBELT FWSD OAKWILDE SUBDIVISION | 6,819 | 0 |
| HARRIS COUNTY MUD 158 | 6,798 | 0 |
| HARRIS COUNTY MUD 150 | 6,786 | 0 |
| HARRIS COUNTY MUD 367 | 6,759 | 0 |
| HARRIS COUNTY MUD 64 | 6,726 | 0 |
| MILLS ROAD MUD | 6,717 | 0 |
| NORTH PARK PUD | 6,708 | 0 |
| WEST HARRIS COUNTY MUD 10 | 6,697 | 4 |
| HARRIS COUNTY MUD 118 | 6,678 | 0 |
| GRAND MISSION MUD 1 | 6,663 | 0 |
| HARRIS COUNTY MUD 433 | 6,651 | 0 |
| MONTGOMERY COUNTY MUD 119 SPRING TRAILS | 6,621 | 0 |
| HEATHERLOCH MUD | 6,612 | 0 |
| HORSEPEN BAYOU MUD | 6,597 | 0 |
| INTERSTATE MUD | 6,591 | 0 |
| HARRIS COUNTY MUD 354 | 6,588 | 4 |
| MONTGOMERY COUNTY MUD 15 | 6,564 | 0 |
| HARRIS COUNTY WCID 84 | 6,552 | 0 |
| MISSION BEND MUD 1 | 6,546 | 0 |
| BIG OAKS MUD | 6,450 | 0 |
| SIENNA MUD 4 | 6,435 | 0 |
| MONTGOMERY COUNTY MUD 95 | 6,435 | 0 |
| HARRIS COUNTY MUD 65 | 6,330 | 0 |
| FORT BEND COUNTY MUD 35 | 6,297 | 0 |
| GRAND MISSION MUD 2 | 6,285 | 0 |
| FORT BEND COUNTY MUD 50 | 6,234 | 0 |
| CINCO MUD 14 | 6,192 | 0 |
| HARRIS COUNTY MUD 364 | 6,168 | 0 |
| HARRIS COUNTY MUD 222 | 6,129 | 0 |
| CINCO SOUTHWEST MUD 4 | 6,093 | 0 |
| HARRIS COUNTY UD 16 | 6,069 | 0 |
| HARRIS COUNTY MUD 400 - EAST | 6,066 | 0 |
| LAKE MUD | 6,048 | 0 |
| FORT BEND COUNTY FWSD 1 | 6,030 | 0 |
| FORT BEND COUNTY MUD 146 | 5,985 | 0 |
| HARRIS COUNTY MUD 16 | 5,982 | 0 |
| HARRIS COUNTY MUD 457 | 5,967 | 0 |
| WEST HARRIS COUNTY MUD 9 | 5,961 | 4 |
| MONTGOMERY COUNTY MUD 9 | 5,949 | 0 |
| PRESTONWOOD FOREST UTILITY DISTRICT | 5,940 | 0 |
| HARRIS COUNTY MUD 43 | 5,940 | 0 |
| BRAZORIA COUNTY MUD 29 | 5,898 | 0 |
| HARRIS COUNTY MUD 180 | 5,892 | 2 |
| HARRIS COUNTY WCID 74 | 5,886 | 0 |
| CHARTERWOOD MUD | 5,832 | 0 |
| FORT BEND COUNTY MUD 134D | 5,796 | 0 |
| HARRIS COUNTY MUD 70 | 5,763 | 0 |
| HARRIS COUNTY MUD 319 | 5,751 | 0 |
| CINCO MUD 8 | 5,613 | 0 |
| SPENCER ROAD PUD | 5,607 | 0 |
| HARRIS COUNTY MUD 239 | 5,583 | 0 |
| FORT BEND COUNTY MUD 162 | 5,553 | 0 |
| NORTHWEST HARRIS COUNTY MUD 19 | 5,535 | 0 |
| HARRIS COUNTY MUD 374 CYPRESS CREEK LAKE | 5,526 | 0 |
| MONTGOMERY COUNTY MUD 139 | 5,523 | 0 |
| CINCO SOUTHWEST MUD 2 | 5,496 | 0 |
| HARRIS COUNTY MUD 5 | 5,487 | 0 |
| HARRIS COUNTY MUD 163 | 5,487 | 0 |
| HARRIS COUNTY MUD 502 | 5,487 | 0 |
| MONTGOMERY COUNTY MUD 8 | 5,472 | 2 |
| MONTGOMERY COUNTY MUD 112 | 5,454 | 0 |
| HARRIS COUNTY MUD 148 KINGSLAKE | 5,448 | 0 |
| FORT BEND COUNTY MUD 26 QUAIL GREEN WEST | 5,424 | 0 |
| FULSHEAR MUD 3A | 5,421 | 0 |
| HARRIS COUNTY MUD 46 | 5,418 | 1 |
| CHIMNEY HILL MUD | 5,409 | 0 |
| TATTOR ROAD MUD | 5,400 | 0 |
| BILMA PUD | 5,397 | 2 |
| HARRIS COUNTY MUD 86 | 5,397 | 0 |
| ROLLING CREEK UTILITY DISTRICT | 5,388 | 0 |
| FORT BEND COUNTY MUD 34 | 5,367 | 0 |
| CITY OF NASSAU BAY | 5,347 | 0 |
| FORT BEND COUNTY MUD 118 | 5,346 | 0 |
| MOUNT HOUSTON ROAD MUD | 5,346 | 0 |
| KAUFMAN COUNTY FWSD 1C | 5,346 | 0 |
| WESTADOR MUD | 5,337 | 0 |
| FORT BEND COUNTY MUD 57 | 5,335 | 0 |
| CORNERSTONES MUD | 5,331 | 0 |
| BRAZORIA COUNTY MUD 22 | 5,310 | 0 |
| MAYDE CREEK MUD | 5,301 | 1 |
| FORT BEND COUNTY MUD 155 | 5,292 | 0 |
| WEST HARRIS COUNTY MUD 7 | 5,289 | 0 |
| BRAZORIA COUNTY MUD 25 | 5,250 | 0 |
| HARRIS COUNTY MUD 127 | 5,247 | 0 |
| BRAZORIA COUNTY MUD 55 | 5,229 | 0 |
| HARRIS COUNTY MUD 400 - WEST | 5,217 | 0 |
| FORT BEND COUNTY MUD 194 | 5,211 | 0 |
| CINCO SOUTHWEST MUD 3 DAYCARE | 5,187 | 0 |
| SIENNA MUD 6 | 5,184 | 0 |
| MONTGOMERY COUNTY MUD 94 | 5,184 | 0 |
| HARRIS COUNTY MUD 33 | 5,181 | 0 |
| DENTON COUNTY FWSD 11-A | 5,160 | 0 |
| HARRIS COUNTY WCID 114 | 5,160 | 18 |
| CROSBY MUD | 5,130 | 1 |
| HARRIS COUNTY MUD 179 | 5,115 | 0 |
| HARRIS COUNTY MUD 276 | 5,094 | 0 |
| FORT BEND COUNTY MUD 119 | 5,088 | 0 |
| HARRIS COUNTY WCID 133 | 5,082 | 0 |
| ELM RIDGE WCID | 5,061 | 0 |
| FORT BEND COUNTY MUD 190 | 5,049 | 0 |
| HARRIS COUNTY IMPROVEMENT DISTRICT 18 | 5,025 | 0 |
| NORTHWEST HARRIS COUNTY MUD 32 | 5,016 | 0 |
| HARRIS COUNTY MUD 495 | 5,007 | 0 |
| MONTGOMERY COUNTY UD 4 | 4,980 | 0 |
| NORTH GREEN MUD | 4,941 | 0 |
| RICEWOOD MUD | 4,908 | 0 |
| HARRIS COUNTY MUD 383 | 4,881 | 0 |
| KLEINWOOD MUD | 4,872 | 4 |
| HARRIS COUNTY MUD 104 | 4,854 | 0 |
| LOUETTA NORTH PUD | 4,848 | 0 |
| HARRIS COUNTY MUD 221 | 4,839 | 0 |
| BRAZORIA COUNTY MUD 21 | 4,833 | 0 |
| FORT BEND COUNTY MUD 116 CANYON GATE | 4,833 | 0 |
| HARRIS COUNTY MUD 432 | 4,782 | 0 |
| MONTGOMERY COUNTY MUD 89 | 4,761 | 0 |
| HARRIS COUNTY MUD 119 | 4,758 | 0 |
| HARRIS COUNTY WCID 92 | 4,752 | 0 |
| CINCO MUD 2 | 4,743 | 0 |
| HARRIS COUNTY MUD 50 | 4,743 | 0 |
| HARRIS COUNTY MUD 501 | 4,740 | 0 |
| HARRIS COUNTY MUD 360 | 4,707 | 0 |
| HARRIS COUNTY MUD 106 | 4,668 | 0 |
| HARRIS FORT BEND COUNTIES MUD 5 | 4,641 | 0 |
| HARRIS COUNTY MUD 185 | 4,617 | 0 |
| FOUNTAINHEAD MUD | 4,614 | 0 |
| MONTGOMERY COUNTY MUD 115 | 4,599 | 0 |
| SUNBELT FWSD WOODLAND OAKS SUBDIVISION | 4,578 | 0 |
| FORT BEND COUNTY MUD 152 | 4,575 | 0 |
| HARRIS COUNTY MUD 130 | 4,572 | 0 |
| CHELFORD ONE MUD | 4,557 | 0 |
| HARRIS COUNTY MUD 344 | 4,518 | 0 |
| HARRIS COUNTY MUD 284 | 4,506 | 0 |
| GBRA CALHOUN COUNTY RURAL WATER SYSTEM | 4,482 | 25 |
| NORTHWEST HARRIS COUNTY MUD 23 | 4,470 | 0 |
| WOODCREEK MUD | 4,464 | 0 |
| RENN ROAD MUD | 4,464 | 4 |
| HARRIS COUNTY MUD 365 | 4,461 | 0 |
| HARRIS COUNTY MUD 370 | 4,452 | 0 |
| CLAY ROAD MUD | 4,443 | 0 |
| HARRIS COUNTY MUD 69 | 4,422 | 0 |
| MONTGOMERY COUNTY MUD 19 | 4,422 | 0 |
| HARRIS COUNTY MUD 397 | 4,413 | 0 |
| HARRIS COUNTY MUD 172 | 4,404 | 0 |
| FORT BEND COUNTY MUD 42 WAT PLAT | 4,395 | 0 |
| KINGS MANOR MUD | 4,377 | 0 |
| FORT BEND COUNTY MUD 165 | 4,314 | 0 |
| SIENNA MUD 12 | 4,311 | 0 |
| CYPRESSWOOD UTILITY DISTRICT | 4,305 | 3 |
| HARRIS COUNTY MUD 322 | 4,266 | 0 |
| PLANTATION MUD | 4,260 | 0 |
| HARRIS COUNTY FWSD 47 | 4,250 | 2 |
| CINCO MUD 7 | 4,239 | 0 |
| HARRIS COUNTY MUD 166 | 4,239 | 0 |
| BRAZORIA COUNTY MUD 3 | 4,230 | 0 |
| CITY OF SPRING VALLEY VILLAGE | 4,229 | 0 |
| SPRING MEADOWS MUD | 4,200 | 0 |
| HARRIS COUNTY MUD 536 | 4,188 | 0 |
| FORT BEND COUNTY MUD 41 | 4,179 | 0 |
| SIENNA PLANTATION MANAGEMENT DISTRICT | 4,179 | 0 |
| BRAZORIA - FORT BEND COUNTIES MUD 3 | 4,149 | 0 |
| FORT BEND COUNTY MUD 123 | 4,143 | 0 |
| FORT BEND COUNTY MUD 81 WESTON LAKES | 4,107 | 0 |
| CHAMPIONS MUD | 4,098 | 0 |
| HARRIS-WALLER COUNTIES MUD 5 | 4,098 | 0 |
| HARRIS COUNTY MUD 18 HEATHERWOOD HUNTERS | 4,083 | 0 |
| VALLEY RANCH MUD 1 | 4,056 | 0 |
| HARRIS COUNTY MUD 423 | 4,044 | 0 |
| HARRIS COUNTY MUD 342 | 4,035 | 0 |
| EAST MONTGOMERY COUNTY MUD 7 | 4,035 | 0 |
| HARRIS COUNTY MUD 186 | 4,005 | 0 |
| HARRIS COUNTY MUD 183 | 3,981 | 0 |
| FORT BEND COUNTY MUD 48 | 3,969 | 0 |
| CYPRESS KLEIN UTILITY DISTRICT WIMBLETON | 3,960 | 0 |
| EAST MONTGOMERY COUNTY MUD 6 | 3,939 | 0 |
| HARRIS COUNTY MUD 6 CARRIAGE LANE | 3,936 | 0 |
| SOUTHERN WATER | 3,933 | 0 |
| HARRIS COUNTY WCID 50 EL LAGO | 3,924 | 8 |
| CYPRESS FOREST PUD | 3,912 | 0 |
| WESTLAKE MUD 1 | 3,909 | 0 |
| NORTHGATE CROSSING MUD 1 | 3,906 | 0 |
| DENTON COUNTY FWSD 11-B | 3,897 | 0 |
| HARRIS COUNTY MUD 173 | 3,894 | 0 |
| CRYSTAL SYSTEMS | 3,879 | 0 |
| GRAND LAKES MUD 4 | 3,867 | 0 |
| HARRIS COUNTY MUD 345 | 3,855 | 0 |
| CINCO MUD 9 | 3,828 | 0 |
| MONTGOMERY COUNTY UD 3 | 3,825 | 0 |
| HARRIS COUNTY MUD 534 | 3,822 | 0 |
| HARRIS FORT BEND COUNTIES MUD 1 | 3,812 | 0 |
| NORTHWEST HARRIS COUNTY MUD 30 | 3,804 | 0 |
| CITY OF BUNKER HILL VILLAGE | 3,771 | 0 |
| NORTHGATE CROSSING MUD 2 | 3,753 | 0 |
| HARRIS COUNTY MUD 401 | 3,750 | 0 |
| POSTWOOD MUD | 3,747 | 0 |
| ENCANTO REAL UTILITY DISTRICT | 3,717 | 0 |
| FRY ROAD MUD | 3,711 | 3 |
| NORTHWEST FREEWAY MUD | 3,678 | 0 |
| MONTGOMERY COUNTY MUD 99 | 3,675 | 0 |
| FORT BEND COUNTY MUD 229 | 3,666 | 0 |
| FORT BEND COUNTY MUD 185 | 3,663 | 0 |
| NORTHWEST HARRIS COUNTY MUD 36 | 3,648 | 0 |
| HARRIS COUNTY MUD 11 | 3,645 | 0 |
| HARRIS COUNTY MUD 208 | 3,642 | 0 |
| HARRIS COUNTY WCID 116 | 3,627 | 0 |
| HARRIS COUNTY MUD 216 | 3,627 | 0 |
| EL DORADO UTILITY DISTRICT | 3,591 | 0 |
| WEST HARRIS COUNTY MUD 5 | 3,591 | 0 |
| FORT BEND COUNTY MUD 222 | 3,582 | 0 |
| HARRIS COUNTY MUD 264 | 3,573 | 0 |
| HARRIS COUNTY MUD 281 | 3,573 | 0 |
| BRAZORIA COUNTY MUD 2 | 3,567 | 0 |
| HARRIS COUNTY MUD 149 | 3,543 | 0 |
| HARRIS COUNTY MUD 62 | 3,519 | 0 |
| HARRIS COUNTY MUD 287 | 3,510 | 0 |
| KLEIN PUD | 3,504 | 0 |
| HARRIS COUNTY WCID 132 | 3,501 | 0 |
| HARRIS COUNTY MUD 257 | 3,501 | 0 |
| PINE VILLAGE PUD | 3,498 | 0 |
| HARRIS COUNTY UD 15 | 3,489 | 0 |
| HARRIS COUNTY MUD 412 | 3,480 | 0 |
| FORT BEND COUNTY MUD 121 | 3,477 | 0 |
| WILLOW CREEK FARMS MUD | 3,453 | 0 |
| OAKMONT PUD | 3,450 | 0 |
| WEST HARRIS COUNTY MUD 6 | 3,435 | 0 |
| NORTHWEST HARRIS COUNTY MUD 20 | 3,429 | 0 |
| HARRIS COUNTY MUD 249 | 3,420 | 0 |
| GRANT ROAD PUD | 3,393 | 0 |
| MONTGOMERY COUNTY UD 2 | 3,381 | 0 |
| FORT BEND COUNTY MUD 122 | 3,366 | 0 |
| WEST HARRIS COUNTY MUD 17 | 3,354 | 1 |
| HARRIS COUNTY MUD 558 | 3,300 | 0 |
| MONTGOMERY COUNTY MUD 105 | 3,282 | 0 |
| HARRIS COUNTY MUD 8 | 3,271 | 0 |
| FORT BEND COUNTY FWSD 2 | 3,258 | 0 |
| HARRIS COUNTY MUD 282 | 3,237 | 0 |
| POINT AQUARIUS MUD | 3,228 | 0 |
| SUNBELT FWSD NORTHLINE TERRACE | 3,225 | 0 |
| GRAND LAKES MUD 1 | 3,219 | 0 |
| HARRIS COUNTY MUD 144 | 3,219 | 2 |
| HARRIS COUNTY MUD 136 | 3,201 | 0 |
| HARRIS COUNTY MUD 396 | 3,201 | 0 |
| HARRIS COUNTY WCID 136 | 3,192 | 0 |
| FORT BEND COUNTY MUD 24 | 3,177 | 0 |
| HARRIS COUNTY MUD 23 | 3,170 | 0 |
| NORTHWEST HARRIS COUNTY MUD 22 | 3,156 | 0 |
| FORT BEND COUNTY MUD 130 | 3,150 | 0 |
| HARRIS COUNTY WCID FONDREN ROAD | 3,144 | 0 |
| HARRIS COUNTY WCID 161 | 3,129 | 0 |
| TERRANOVA WEST MUD | 3,120 | 0 |
| FORT BEND COUNTY MUD 131 | 3,114 | 0 |
| DENTON COUNTY FWSD 8-B | 3,090 | 0 |
| BAYBROOK MUD 1 | 3,087 | 16 |
| WOOD TRACE MUD 1 | 3,084 | 0 |
| CINCO MUD 6 | 3,048 | 0 |
| BRAZORIA COUNTY MUD 39 | 3,036 | 0 |
| HARRIS COUNTY MUD 147 | 3,003 | 0 |
| HARRIS COUNTY WCID 91 | 3,000 | 0 |
| NORTHWEST HARRIS COUNTY MUD 29 | 3,000 | 1 |
| CYPRESS CREEK UTILITY DISTRICT | 2,988 | 0 |
| GREEN TRAILS MUD | 2,982 | 0 |
| HARRIS COUNTY MUD 399 | 2,967 | 0 |
| HARRIS COUNTY MUD 480 | 2,964 | 0 |
| DENTON COUNTY FWSD 8-A | 2,955 | 0 |
| FOREST HILLS MUD | 2,955 | 0 |
| SUNBELT FWSD HEATHER GLEN SUBDIVISION | 2,943 | 0 |
| HARRIS COUNTY MUD 202 | 2,940 | 0 |
| GALVESTON COUNTY MUD 12 | 2,900 | 1 |
| HARRIS COUNTY MUD 280 | 2,898 | 0 |
| RIVER PLANTATION MUD | 2,898 | 0 |
| FORT BEND COUNTY MUD 47 | 2,874 | 0 |
| HARRIS COUNTY MUD 434 | 2,859 | 0 |
| RANKIN ROAD WEST MUD | 2,838 | 0 |
| EAST MONTGOMERY COUNTY MUD 12 | 2,838 | 0 |
| HARRIS COUNTY MUD 155 | 2,829 | 6 |
| MORTON ROAD MUD | 2,817 | 22 |
| HARRIS COUNTY MUD 552 | 2,814 | 0 |
| FORT BEND COUNTY MUD 141 | 2,790 | 2 |
| TIMBERLAKE IMPROVEMENT DISTRICT | 2,775 | 0 |
| NORTH BELT UTILITY DISTRICT | 2,775 | 0 |
| HARRIS COUNTY UD 14 | 2,769 | 0 |
| MONTGOMERY COUNTY MUD 98 | 2,766 | 0 |
| NORTHWEST HARRIS COUNTY MUD 16 | 2,742 | 0 |
| FORT BEND COUNTY MUD 134E | 2,733 | 0 |
| MONTGOMERY COUNTY MUD 138 | 2,712 | 0 |
| WEST HARRIS COUNTY MUD 14 | 2,688 | 0 |
| LANCASTER MUD 1 | 2,685 | 2 |
| HARRIS COUNTY MUD 389 | 2,676 | 0 |
| HARRIS COUNTY MUD 162 | 2,661 | 0 |
| BRAZORIA COUNTY MUD 56 | 2,643 | 0 |
| HARRIS COUNTY FWSD 1A | 2,640 | 4 |
| SPRING WEST MUD | 2,639 | 0 |
| HARRIS COUNTY MUD 372 | 2,619 | 0 |
| MONTGOMERY COUNTY MUD 24 | 2,613 | 0 |
| BLUE BELL MANOR SUBDIVISION | 2,607 | 0 |
| HARRIS COUNTY MUD 542 | 2,592 | 0 |
| CINCO MUD 10 | 2,583 | 0 |
| HARRIS COUNTY MUD 371 | 2,577 | 0 |
| PALMER PLANTATION MUD 2 | 2,559 | 0 |
| MONTGOMERY COUNTY MUD 84 | 2,553 | 0 |
| BAMMEL UTILITY DISTRICT | 2,550 | 0 |
| WOODRIDGE MUD | 2,550 | 0 |
| FORT BEND COUNTY MUD 124 | 2,544 | 0 |
| HARRIS COUNTY MUD 215 | 2,541 | 0 |
| WHITE OAK BEND MUD | 2,520 | 0 |
| CINCO MUD 3 | 2,517 | 0 |
| CASTLEWOOD MUD | 2,505 | 0 |
| MONTGOMERY COUNTY MUD 111 | 2,502 | 0 |
| CHAMBERS COUNTY MUD 1 | 2,500 | 0 |
| NORTHWEST HARRIS COUNTY MUD 21 | 2,493 | 0 |
| MONTGOMERY COUNTY MUD 127 | 2,478 | 0 |
| SPRING CREEK FOREST PUD | 2,472 | 0 |
| HARRIS COUNTY IMPROVEMENT DISTRICT 14 | 2,469 | 0 |
| CINCO MUD 5 | 2,460 | 2 |
| CITY OF SOUTHSIDE PLACE | 2,457 | 0 |
| BEECHNUT MUD | 2,451 | 0 |
| INVERNESS FOREST IMPROVEMENT DISTRICT | 2,448 | 0 |
| HILLTOWN ADDITION | 2,439 | 0 |
| HAZY HOLLOW EAST ESTATES | 2,424 | 0 |
| HARRIS COUNTY MUD 341 | 2,421 | 1 |
| HARRIS COUNTY MUD 531 | 2,421 | 0 |
| FORT BEND COUNTY MUD 218 | 2,412 | 0 |
| ROLLING FORK PUD | 2,397 | 0 |
| HARRIS MONTGOMERY COUNTIES MUD 386 MAY V | 2,364 | 0 |
| HARRIS COUNTY WCID 99 | 2,343 | 0 |
| TIMBERCREST VILLAGE | 2,337 | 0 |
| MONTGOMERY COUNTY MUD 96 | 2,334 | 0 |
| SHASLA PUD | 2,310 | 0 |
| HARRIS COUNTY MUD 422 | 2,307 | 0 |
| HARRIS COUNTY MUD 44 | 2,301 | 0 |
| HARRIS COUNTY MUD 58 | 2,289 | 25 |
| KIRKMONT MUD | 2,277 | 0 |
| CINCO MUD 12 | 2,274 | 0 |
| NORTHWEST HARRIS COUNTY MUD 6 | 2,256 | 0 |
| EAST MONTGOMERY COUNTY MUD 3 | 2,250 | 0 |
| FORT BEND COUNTY MUD 46 | 2,247 | 0 |
| HARRIS COUNTY FWSD 6 | 2,229 | 0 |
| FORT BEND COUNTY MUD 158 | 2,214 | 0 |
| MONTGOMERY COUNTY MUD 83 | 2,208 | 0 |
| NITSCH & SON UTILITY | 2,190 | 0 |
| HARRIS COUNTY FWSD 27 | 2,190 | 0 |
| HARRIS COUNTY MUD 465 | 2,168 | 0 |
| HARRIS COUNTY WCID 70 | 2,112 | 0 |
| MONTGOMERY COUNTY MUD 144 | 2,106 | 0 |
| HARRIS COUNTY MUD 156 | 2,082 | 0 |
| GRAND LAKES MUD 2 | 2,076 | 0 |
| HARRIS COUNTY MUD 248 | 2,076 | 0 |
| MONTGOMERY COUNTY MUD 164 | 2,076 | 0 |
| LAKE CONROE HILLS MUD | 2,058 | 0 |
| AUDUBON MUD 1 | 2,049 | 0 |
| HARRIS COUNTY MUD 530 | 2,034 | 0 |
| PALMER PLANTATION MUD 1 | 2,031 | 0 |
| FAR HILLS UTILITY DISTRICT | 2,030 | 0 |
| HARRIS COUNTY MUD 540 | 2,022 | 0 |
| HARRIS COUNTY MUD 61 | 2,016 | 0 |
| GRAND OAKS MUD | 2,013 | 0 |
| BRAZORIA COUNTY MUD 40 | 1,986 | 0 |
| SEDONA LAKES MUD 1 | 1,977 | 0 |
| DENTON COUNTY FWSD 11-C | 1,977 | 0 |
| HARRIS COUNTY FWSD 58 | 1,968 | 0 |
| HARRIS COUNTY MUD 494 | 1,944 | 0 |
| HARRIS COUNTY MUD 420 | 1,941 | 0 |
| MEMORIAL HILLS UTILITY DISTRICT | 1,929 | 0 |
| HARRIS COUNTY MUD 213-A | 1,926 | 0 |
| BEAUMONT PLACE | 1,917 | 0 |
| FORT BEND COUNTY MUD 184 | 1,884 | 3 |
| NORTHEAST HARRIS COUNTY MUD 1 EDGEWOOD V | 1,842 | 0 |
| FORT BEND COUNTY MUD 206 VICTORIAN GARDE | 1,836 | 0 |
| MONTGOMERY COUNTY MUD 180 | 1,827 | 0 |
| ELLIS COUNTY FWSD 1 | 1,812 | 0 |
| FORT BEND COUNTY MUD 220 | 1,812 | 0 |
| LONGHORN TOWN UTILITY DISTRICT | 1,788 | 0 |
| NORTHEAST HARRIS COUNTY MUD 1 SHELDON RI | 1,788 | 0 |
| HARRIS COUNTY MUD 220 | 1,773 | 0 |
| FORT BEND COUNTY MUD 156 | 1,719 | 0 |
| HARRIS COUNTY MUD 572 | 1,698 | 0 |
| GENERATION PARK MANAGEMENT DISTRICT | 1,687 | 0 |
| COUNTRY TERRACE SUBDIVISION | 1,677 | 1 |
| WILLOW POINT MUD | 1,668 | 0 |
| FORT BEND COUNTY MUD 37 | 1,662 | 0 |
| HARRIS COUNTY MUD 559 | 1,629 | 0 |
| NORTHWEST HARRIS COUNTY MUD 28 | 1,605 | 0 |
| WEST HARRIS COUNTY MUD 1 | 1,581 | 0 |
| WEST HARRIS COUNTY MUD 4 | 1,581 | 0 |
| SOUTHWEST HARRIS COUNTY MUD 1 | 1,581 | 5 |
| HARRIS COUNTY MUD 205 | 1,560 | 0 |
| NORTH FOREST MUD | 1,545 | 2 |
| COLES CROSSING | 1,521 | 12 |
| FORT BEND COUNTY MUD 216 | 1,521 | 0 |
| EAST MONTGOMERY COUNTY MUD 4 | 1,500 | 0 |
| CITY OF SHOREACRES | 1,493 | 0 |
| FORT BEND COUNTY MUD 19 | 1,479 | 0 |
| MONTGOMERY COUNTY MUD 145 | 1,476 | 0 |
| CITY OF PASADENA EL CARY ESTATES | 1,470 | 0 |
| HARRIS COUNTY MUD 36 | 1,464 | 0 |
| HARRIS COUNTY MUD 261 | 1,452 | 0 |
| MONTGOMERY COUNTY MUD 166 | 1,443 | 0 |
| HARRIS COUNTY MUD 275 | 1,428 | 0 |
| HARRIS COUNTY MUD 537 | 1,416 | 0 |
| SHELDON ROAD MUD | 1,412 | 0 |
| LOUETTA ROAD UTILITY DISTRICT | 1,410 | 0 |
| BEAVER CREEK WCID 1 | 1,407 | 6 |
| WALLER COUNTY ROAD IMPROVEMENT DIST 1 | 1,400 | 0 |
| SOUTHWOOD ESTATES | 1,347 | 0 |
| MONTGOMERY COUNTY MUD 152A | 1,344 | 0 |
| HARRIS COUNTY MUD 490 | 1,293 | 0 |
| MEMORIAL POINT UTILITIES DISTRICT | 1,285 | 0 |
| HARRIS COUNTY MUD 421 | 1,269 | 0 |
| HARRIS COUNTY MUD 551 | 1,269 | 0 |
| FORT BEND COUNTY MUD 145 RIO VISTA | 1,263 | 0 |
| NORTHWEST HARRIS COUNTY MUD 24 | 1,257 | 0 |
| HARRIS COUNTY WCID 113 ENCHANTED VILLAGE | 1,233 | 0 |
| CHARLESTON MUD | 1,212 | 0 |
| MONTGOMERY COUNTY MUD 199 | 1,203 | 0 |
| HARRIS COUNTY MUD 255 | 1,185 | 0 |
| HARRIS COUNTY MUD 122 | 1,158 | 0 |
| HARRIS COUNTY MUD 500 | 1,158 | 0 |
| HARRIS COUNTY WCID 156 | 1,116 | 0 |
| HARRIS COUNTY MUD 570C | 1,113 | 0 |
| ROYALWOOD MUD | 1,101 | 4 |
| CORINTHIAN POINT MUD 2 | 1,086 | 0 |
| LUCE BAYOU PUD | 1,083 | 0 |
| HARRIS COUNTY MUD 316 | 1,083 | 0 |
| FORT BEND COUNTY MUD 49 | 1,080 | 0 |
| HARRIS COUNTY MUD 547 | 1,074 | 0 |
| CONROE RESORT | 1,068 | 3 |
| BAKER ROAD MUD | 1,062 | 0 |
| MOUNT SYLVAN WATER SYSTEM | 1,056 | 0 |
| CASTLEWOOD SUBDIVISION | 1,053 | 0 |
| PINEWOOD PLACE MOBILE HOME COMMUNITY | 1,050 | 0 |
| COTTAGE GARDENS | 1,047 | 2 |
| SEQUOIA IMPROVEMENT DISTRICT | 1,038 | 0 |
| MEADOWLAKE ESTATES | 984 | 0 |
| MONTGOMERY COUNTY MUD 141 | 978 | 2 |
| WILDWOOD SHORES | 968 | 0 |
| MONTGOMERY COUNTY MUD 56 | 963 | 0 |
| CITY OF HILSHIRE VILLAGE | 945 | 3 |
| TEXAS NATIONAL MUD | 931 | 1 |
| HARRIS COUNTY MUD 250 | 930 | 0 |
| HARRIS COUNTY MUD 286 | 879 | 0 |
| HARRIS COUNTY MUD 539 | 870 | 0 |
| MAPLE LEAF MOBILE HOME SUBDIVISION | 861 | 0 |
| WEST HARRIS COUNTY MUD 15 | 834 | 0 |
| HARRIS COUNTY MUD 576 | 822 | 0 |
| CYPRESS BEND SUBDIVISION | 819 | 0 |
| HARRIS COUNTY MUD 503 | 819 | 0 |
| BIG SKY MUD | 813 | 0 |
| HARRIS COUNTY MUD 321 | 807 | 0 |
| FORT BEND COUNTY MUD 132 | 795 | 0 |
| NORTHWOOD MUD 1 | 795 | 0 |
| SPRING FOREST SUBDIVISION | 759 | 0 |
| FORT BEND COUNTY MUD 192 | 758 | 0 |
| WHITE OAK VALLEY ESTATES WATER SYSTEM | 750 | 0 |
| CITY OF KEMAH MMD 1 | 741 | 0 |
| RESERVOIR ACRES SUBDIVISION | 738 | 2 |
| SPORTSMANS WORLD MUD | 735 | 50 |
| ATASCOCITA VILLAGE MOBILE HOME PARK | 723 | 0 |
| BRAZORIA COUNTY MUD 24 | 708 | 0 |
| OAK SHORES WATER SYSTEM | 696 | 8 |
| THE LANDING AT PEARLAND | 690 | 0 |
| SUNBELT FWSD OAKGLEN SUBDIVISION | 684 | 0 |
| FORT BEND COUNTY MUD 198 | 675 | 0 |
| HARRIS COUNTY FWSD 1B | 672 | 11 |
| LAZY RIVER IMPROVEMENT DISTRICT | 672 | 0 |
| CLOVERCREEK MUD | 662 | 0 |
| FORT BEND COUNTY MUD 134F | 661 | 0 |
| GALVESTON COUNTY WCID 19 | 660 | 13 |
| HARRIS COUNTY MUD 405 | 657 | 0 |
| RICHEY ROAD MUD | 651 | 0 |
| FORT BEND COUNTY WCID 3 | 648 | 0 |
| SPRING CREEK VALLEY ESTATES | 645 | 0 |
| WOODLAND ACRES SUBDIVISION | 643 | 23 |
| LAKEVIEW N MARSHALL OAKS SOMMERVILLE PLA | 642 | 0 |
| ROSEWOOD WATER SYSTEM | 639 | 0 |
| BRAZORIA COUNTY MUD 44 | 630 | 0 |
| WHITE OAK MANOR MOBILE HOME PARK | 630 | 0 |
| WEST HOUSTON MHC | 630 | 1 |
| MONTGOMERY COUNTY MUD 42 | 630 | 0 |
| MONTGOMERY COUNTY MUD 16 WHITE OAK PLANT | 627 | 0 |
| FORT BEND COUNTY MUD 189 | 624 | 0 |
| HUNTER PLACE | 606 | 0 |
| HIGHLAND RIDGE SUBDIVISION | 591 | 3 |
| RIVERWOOD ESTATES | 585 | 22 |
| WILDWOOD MOBILE HOME VILLAGE | 577 | 20 |
| FORT BEND COUNTY MUD 250A | 576 | 0 |
| HARRIS COUNTY MUD 578 | 576 | 0 |
| URBAN ACRES SUBDIVISION | 570 | 0 |
| BENCHLEY OAKS SUBDIVISION | 567 | 6 |
| HARRIS COUNTY MUD 569 | 549 | 0 |
| OAK MANOR MUD | 537 | 0 |
| GRASSLANDS | 516 | 0 |
| CINCO SOUTHWEST MUD 1 | 513 | 0 |
| FORT BEND COUNTY MUD 195 | 513 | 0 |
| FOREST SPRINGS WATER SYSTEM | 510 | 0 |
| GARDEN VALLEY RESORT | 510 | 0 |
| HARRIS COUNTY FWSD 45 | 504 | 1 |
| HARRIS COUNTY MUD 458 | 501 | 0 |
| ORANGE GROVE WATER SUPPLY | 498 | 0 |
| SPRING CREEK PURE UTILITIES | 498 | 172 |
| FORT BEND COUNTY MUD 66 | 495 | 0 |
| SPRINGMONT SUBDIVISION | 495 | 2 |
| HARRIS COUNTY MUD 48 | 483 | 0 |
| BURLESON COUNTY MUD 1 | 480 | 9 |
| CANAL TERRACE SUBDIVISION | 480 | 0 |
| LAMAR IMPROVEMENT DISTRICT | 450 | 0 |
| PRESERVE AT HIGHWAY 6 | 450 | 0 |
| HUFFMAN HEIGHTS SUBDIVISION | 435 | 0 |
| RAMBLEWOOD UTILITY & WSC | 429 | 0 |
| KINGMONT MOBILE HOME PARK | 420 | 1 |
| PORTER TERRACE | 417 | 0 |
| TAYLOR LAKE ESTATES WATER SYSTEM | 416 | 3 |
| BEECHWOOD SUBDIVISION | 411 | 0 |
| AIRPORT ROAD MUD | 411 | 0 |
| WALLER COUNTY MUD 35 | 411 | 0 |
| HARRIS COUNTY MUD 211 | 405 | 0 |
| STALLION LAKE RANCH | 399 | 2 |
| CYPRESS FOREST WATER SYSTEM | 396 | 0 |
| PALOMA ACRES SUBDIVISION | 390 | 0 |
| BRAZOS OAKS SUBDIVISION | 390 | 0 |
| TOWER OAK BEND WSC | 390 | 0 |
| HARRIS COUNTY MUD 233 | 390 | 0 |
| BRAZORIA COUNTY MUD 87 | 387 | 0 |
| FORT BEND COUNTY MUD 255 | 387 | 0 |
| RALSTON ACRES WATER SUPPLY CORPORATION | 385 | 0 |
| PIONEER TRAILS SUBDIVISION | 384 | 0 |
| PROVENCE WATER SYSTEM | 366 | 0 |
| EAST PONDER ESTATES | 363 | 13 |
| SPANISH COVE PUD | 357 | 0 |
| GREENLAND SQUARE SUBDIVISION WS | 357 | 0 |
| ROSHARON TOWNSHIP | 354 | 0 |
| BROOKSHIRES CAMP JOY WATER SYSTEM | 348 | 0 |
| HEATHERGATE ESTATES | 342 | 0 |
| HARRIS COUNTY MUD 532 | 342 | 0 |
| DEMI JOHN PLACE WATER SYSTEM | 336 | 26 |
| CROWLEY II ACRE SUBDIVISION | 336 | 0 |
| BLAKETREE MUD 1 | 336 | 0 |
| VAN MANOR MOBILE HOME PARK | 333 | 0 |
| MARK V ESTATES | 330 | 0 |
| BENDER CREEK APARTMENTS | 330 | 0 |
| MONTGOMERY COUNTY MUD 211 | 330 | 0 |
| FRIENDSHIP WATER SYSTEM | 330 | 0 |
| ADVANCED RV PARK | 327 | 0 |
| GREENGATE ACRES SUBDIVISION | 318 | 0 |
| FOREST MANOR SUBDIVISION | 300 | 2 |
| BUFFALO CREEK | 300 | 0 |
| RIVERSIDE ESTATES | 297 | 0 |
| TEJAS LAKES SUBDIVISION | 297 | 0 |
| LAGO BELLO MUD 1A | 297 | 0 |
| BERNARD OAKS SUBDIVISION | 294 | 0 |
| LAKESIDE VILLAGE SUBDIVISION | 290 | 0 |
| TEJAS LANDING SUBDIVISION | 288 | 0 |
| KIRBY LANDING COMMUNITY | 285 | 0 |
| NEW PROGRESS WATER SPRING VALLEY | 282 | 1 |
| RIVER RANCH | 276 | 0 |
| CITY OF MORGANS POINT | 275 | 0 |
| RIVER CLUB WATER | 273 | 8 |
| HARRIS COUNTY MUD 477 | 267 | 0 |
| LOCH NESS COVE SUBDIVISION WATER SYSTEM | 267 | 0 |
| HARRIS COUNTY MUD 544 | 264 | 0 |
| MONTGOMERY COUNTY MUD 172 | 264 | 0 |
| COMMODORE CAPE WATER SYSTEM | 264 | 9 |
| BRAZORIA COUNTY MUD 57 MCCOY PARKWAY | 255 | 0 |
| HARRIS COUNTY MUD 493 | 255 | 0 |
| GARDEN ACRES SUBDIVISION | 252 | 10 |
| COUSHATTE CAMPGROUND | 250 | 16 |
| PEACH CREEK OAKS SUBDIVISION | 250 | 1 |
| WILCO WATER | 243 | 38 |
| APACHE HILLS | 243 | 0 |
| PITCAIRN WSC | 238 | 0 |
| SANDY MEADOW ESTATES SUBDIVISION | 237 | 38 |
| HARRIS COUNTY MUD 525 | 237 | 0 |
| BAYRIDGE SUBDIVISION WATER SYSTEM | 234 | 34 |
| RIVER OAKS SUBDIVISION | 234 | 6 |
| CHAMBERS COUNTY MUD 3 | 234 | 0 |
| HUFFMAN HOLLOW APARTMENTS | 234 | 0 |
| WHITE TAIL RIDGE LAKES ESTATES | 233 | 100 |
| JOY VILLAGE | 231 | 0 |
| PONDEROSA HILLS SUBDIVISION | 231 | 1 |
| COLONY TRAILS SUBDIVISION | 228 | 0 |
| TIDWELL FOREST NEW SUBDIVISION | 225 | 1 |
| CAPE TRANQUILITY SYSTEM | 225 | 0 |
| RIVER RANCH MUD 3 | 225 | 0 |
| HARRIS COUNTY MUD 358 | 222 | 0 |
| NEW PROGRESS WSC ENCHANTED OAKS SUBDIVIS | 222 | 3 |
| TEXAS WATER SUPPLY | 221 | 3 |
| ROSHARON ROAD ESTATES SUBDIVISION | 219 | 0 |
| MONTGOMERY COUNTY MUD 158 | 219 | 0 |
| LOST LAKES | 217 | 4 |
| CASITAS DEL RIO | 216 | 0 |
| EAST MONTGOMERY COUNTY MUD 14 | 213 | 0 |
| KING RANCH SANTA GERTRUDIS DISTRICT | 212 | 0 |
| SAN BERNARD RIVER ESTATES | 207 | 0 |
| APACHELAND MOBILE HOME SUBDIVISION | 207 | 0 |
| WALLER COUNTY MUD 37 | 207 | 0 |
| LAKEWOOD ESTATES | 202 | 0 |
| MOORELAND SUBDIVISION WATER SYSTEM | 201 | 0 |
| CHAPMANS MHP | 195 | 1 |
| SIX LAKES SUBDIVISION | 195 | 0 |
| LAKEWOOD COLONY | 195 | 0 |
| MONTGOMERY COUNTY MUD 185 | 195 | 0 |
| LITTLE OAK FOREST SUBDIVISION | 189 | 12 |
| LINCOLN SQUARE SUBDIVISION PWS | 189 | 0 |
| SHADY BROOK ACRES | 189 | 10 |
| ALLENDALE WATER SYSTEM | 180 | 0 |
| HIGHLAND LAKES | 180 | 3 |
| OAK MEADOWS ESTATES SUBDIVISION | 174 | 0 |
| CHAMPION LAKES ESTATES WATER PLANT | 174 | 0 |
| COLONY COVE SUBDIVISION WATER SYSTEM | 171 | 4 |
| SUGAR PINES MHP | 170 | 4 |
| OAKS AT HOUSTON POINT | 165 | 122 |
| RIO VILLA WSC | 165 | 0 |
| WOODHAVEN ESTATES | 165 | 0 |
| MONTGOMERY COUNTY MUD 197 | 165 | 0 |
| JOHN DAME | 159 | 0 |
| OAK FOREST LAKEWAY MANOR | 159 | 0 |
| SONTERA ACRES MOBILE MANOR | 156 | 0 |
| TALL CEDARS MOBILE HOME SUBDIVISION | 156 | 0 |
| ANGLE ACRES WATER SYSTEM | 153 | 2 |
| WALLER COUNTY MUD 45 | 153 | 0 |
| KUCERA FARMS SUBDIVISION | 150 | 0 |
| SMETANA FOREST | 150 | 42 |
| OAKLAND VILLAGE MOBILE HOME COMMUNITY | 150 | 0 |
| CHINQUAPIN PREPARATORY SCHOOL | 148 | 0 |
| WAYNEWOOD PLACE CIVIC CLUB | 147 | 0 |
| NORTH POINT VILLA | 144 | 2 |
| COUNTRY MEADOWS | 141 | 0 |
| CORONADO COUNTRY | 141 | 0 |
| TIMBER RIDGE SECTION 2 | 141 | 28 |
| WALLER COUNTY MUD 34C | 141 | 0 |
| CRYSTAL LAKE ESTATES | 138 | 0 |
| WINTERHAVEN SUBDIVISION | 138 | 0 |
| HILLGREEN SUBDIVISION WATER CO | 138 | 0 |
| MONTGOMERY COUNTY MUD 201 | 136 | 0 |
| SNUG HARBOR SUBDIVISION | 135 | 1 |
| CHANNEL OAKS WATER SYSTEM | 135 | 0 |
| COUNTRY ACRE ESTATES | 132 | 0 |
| ROCK CREEK ESTATES | 132 | 0 |
| HARRIS COUNTY MUD 514 | 129 | 0 |
| RIVERBOAT BEND TRAILER PARK | 129 | 0 |
| STONE HEDGE ESTATES | 129 | 2 |
| ALDINE GARDENS MOBILE HOME PARK | 128 | 1 |
| FORT BEND COUNTY WCID 8 | 126 | 0 |
| CORBELLO WATER SYSTEM | 126 | 1 |
| DEER TRAIL MOBILE HOME PARK | 126 | 1 |
| HARRIS COUNTY MUD 538 | 126 | 0 |
| SPANISH BIT PLANTATION SUBDIVISION | 126 | 0 |
| HARRIS COUNTY LEADERSHIP ACADEMY | 125 | 1 |
| BAYOU COLONY SUBDIVISION | 120 | 0 |
| CYPRESS VILLAGE TRAILER & RV PARK | 120 | 0 |
| SUBURBAN MOBILE HOME PARK 2 | 120 | 0 |
| MCFARLAND VILLAGE APARTMENTS | 120 | 2 |
| LAZY LANE MOBILE HOME PARK | 120 | 1 |
| TANGLEWOOD FOREST SUBDIVISION | 118 | 72 |
| BLUE SAGE GARDENS SUBDIVISION | 117 | 0 |
| STONERIDGE LAKE SUBDIVISION | 117 | 6 |
| BAR D RANCHETTES | 117 | 0 |
| BRIAR MEADOWS | 111 | 0 |
| LORI HEIGHTS MOBILE HOME SUBDIVISION | 111 | 0 |
| WOLF GLEN WATER SYSTEM | 108 | 0 |
| GATEWAY DEVELOPMENT | 108 | 0 |
| WALLER COUNTY MUD 55A | 108 | 0 |
| COUNTRY LIVING APARTMENTS | 105 | 0 |
| ROVING MEADOWS WATER SYSTEM | 105 | 2 |
| LEANING OAK MOBILE HOME PARK | 105 | 3 |
| APACHE MOBILE HOME PARK | 102 | 0 |
| CRYSTAL LAKE MHP, LLC | 100 | 0 |
| RENES WATER SYSTEM | 100 | 1 |
| BEAR CREEK ESTATES | 99 | 0 |
| HIGHLAND MOBILE HOME SUBDIVISION | 96 | 0 |
| CYPRESSWOOD MHP | 96 | 0 |
| COUNTRY CLUB ESTATES | 96 | 0 |
| BRANDI ESTATES | 93 | 2 |
| BLUEBONNET MOBILE HOME PARK | 93 | 1 |
| PADOK TIMBERS SUBDIVISION WS | 92 | 1 |
| CHANTICOR SERIES | 90 | 39 |
| HIGHLAND MEADOWS MOBILE HOME PARK | 87 | 0 |
| ZAM ZAM WATER SUPPLY | 87 | 1 |
| HARRIS COUNTY MUD 171 | 87 | 0 |
| BELL MANOR SUBDIVISION | 87 | 0 |
| SWEETGUM FOREST | 87 | 0 |
| BENTWOOD BEND WATER SYSTEM | 87 | 0 |
| FAIRWAY MOBILE HOME VILLAGE | 84 | 1 |
| FAIRVIEW MOBILE HOME COMMUNITY | 84 | 0 |
| BOULAIS MOBILE HOME PARK | 84 | 0 |
| MARTIN CREEK ESTATES | 84 | 0 |
| CLEVELAND MH AND RV PARK | 84 | 0 |
| CORNERSTONE MOBILE HOME COMMUNITY | 81 | 0 |
| CNA PLAZA APARTMENTS | 80 | 1 |
| OAK ACRES MOBILE HOME PARK | 80 | 1 |
| LEE RIDGE SUBDIVISION | 78 | 0 |
| GRANTWOODS WATER SUPPLY CORPORATION | 78 | 0 |
| SUNSET MOBILE HOME PARK 2 | 78 | 1 |
| WOOD ACRES MHP | 78 | 1 |
| NOBLE ESTATES MHP | 75 | 4 |
| LA CASITA HOMES II | 75 | 1 |
| LONE WILLOW MHP WEST | 75 | 7 |
| FAIRVIEW GARDENS MHP | 75 | 0 |
| LAZY ACRES MOBILE HOME PARK | 75 | 3 |
| HOLIDAY HARBOR SUBDIVISION | 75 | 0 |
| MAGNOLIA COUNTRY RV PARK | 75 | 1 |
| ARENOSA CREEK ESTATES | 75 | 0 |
| WESTFIELD MEADOWS | 72 | 0 |
| TALLOWS MOBILE HOME PARK | 72 | 1 |
| COUNTRY LIVING MOBILE HOME PARK | 72 | 1 |
| SIENNA MUD 7 | 69 | 0 |
| HARRIS COUNTY MUD 25 BROOK HOLLOW WEST S | 69 | 46 |
| BOYS & GIRLS COUNTRY | 69 | 0 |
| SATSUMA PARK VILLA MOBILE HOME PARK | 66 | 1 |
| WHITEWING SUBDIVISION | 64 | 1 |
| CAROL NORRA MOBILE HOME PARK | 63 | 1 |
| PEEK ROAD MOBILE HOME PARK | 63 | 1 |
| RILEY ROAD ESTATES WS | 63 | 0 |
| GRANGER SUBDIVISION | 60 | 0 |
| KING RANCH LAURELES DIVISION | 60 | 4 |
| ESTATES WATER CORP | 58 | 2 |
| RYAN LONG SUBDIVISION 2 WATER SYSTEM | 57 | 0 |
| BRAZORIA COUNTY MUD 92 | 57 | 0 |
| WINDCRESS MUD OF CHAMBERS COUNTY | 57 | 0 |
| FORT BEND COUNTY MUD 188 | 54 | 0 |
| K LAKE TERRACE | 54 | 1 |
| FOUR SEASONS MHP | 54 | 0 |
| HARRIS COUNTY MUD 560 | 54 | 0 |
| COLTON MUD 2 | 54 | 0 |
| THE HOUSTON OAKS GOLF AND COUNTRY CLUB | 54 | 4 |
| WHISPERING WOODS | 51 | 0 |
| BALABAN APARTMENTS 2 | 50 | 1 |
| WHEAT MEADOW MOBILE HOME PARK SECTION II | 48 | 0 |
| WHEAT MEADOW MOBILE HOME PARK SECTION I | 48 | 1 |
| DOGWOOD TREE WATER SYSTEM | 48 | 0 |
| QUAILWOOD WATER SYSTEM | 48 | 0 |
| MAR LYNN SUBDIVISION | 48 | 6 |
| FORT BEND COUNTY MUD 256 | 47 | 0 |
| FORT BEND COUNTY MUD 246 | 45 | 0 |
| NORTHWOODS MOBILE HOME PARK | 45 | 2 |
| SUNSET MOBILE HOME PARK 1 | 45 | 1 |
| K ESTATES WATER SYSTEM | 45 | 1 |
| HARRIS COUNTY MUD 565 | 45 | 0 |
| LUCKY HOMES RV PARK | 45 | 0 |
| KENDALL COUNTY WCID 3A | 45 | 0 |
| MONTGOMERY COUNTY MUD 212 | 45 | 0 |
| AUDUBON MUD 2 | 45 | 0 |
| AUGUST LAKES WSC | 45 | 0 |
| TEPATITLAN MOBILE HOME PARK | 42 | 1 |
| BARKALOO HOMEOWNERS ASSOCIATION | 42 | 1 |
| BARLOW LAKE ESTATES | 41 | 0 |
| KING RANCH NORIAS | 34 | 0 |
| TOWN BLUFF WATER SYSTEM | 34 | 0 |
| THE RIDGE AT FRIO RIVER WATER SYSTEM | 33 | 0 |
| QUALITY MOBILE HOME PARK | 30 | 0 |
| NEW PROGRESS WSC ENCHANTED LAKES SUBDIVI | 30 | 0 |
| WALLER COUNTY MUD 19 | 27 | 0 |
| HOOKS AIRPORT SOUTH END | 25 | 0 |
| MEADOWS AT CYPRESS CREEK WATER PLANT | 25 | 0 |
| HARRIS COUNTY MUD 491 | 25 | 0 |
| EAST HOUSTON AT PINEY WOODS MHP | 25 | 0 |
| WILLOWBREEZE FARM SUBDIVISION | 20 | 11 |
| GUADALUPE BLANCO RIVER AUTHORITY | 0 | 28 |
| FORT BEND COUNTY MUD 134A | 0 | 0 |
| NORTH FORT BEND WATER AUTHORITY | 0 | 0 |
| FORT BEND COUNTY MUD 250 | 0 | 0 |
| NORTH CHANNEL WATER AUTHORITY | 0 | 1 |
| NORTH HARRIS COUNTY REGIONAL WATER AUTHO | 0 | 0 |
| WEST HARRIS COUNTY REGIONAL WATER AUTHOR | 0 | 0 |
| HARRIS COUNTY MUD 418 | 0 | 0 |
| HARRIS COUNTY MUD 387 | 0 | 0 |
| HARRIS COUNTY IMPROVEMENT DISTRICT 13 | 0 | 0 |
| HARRIS COUNTY MUD 570D | 0 | 0 |
| HARRIS COUNTY MUD 478 WATER PLANT 1 | 0 | 0 |
| RIVER RANCH MUD 1 | 0 | 0 |
| EAST MONTGOMERY COUNTY MUD 5 | 0 | 0 |
| THE HIGHLANDS | 0 | 1 |
| MONTGOMERY COUNTY MUD 157 | 0 | 0 |
| COLTON MUD 1 | 0 | 0 |
| MONTGOMERY COUNTY MUD 152C | 0 | 0 |
| CALVARY UTILITY | 0 | 0 |
| MUNICIPAL GROUNDWATER SOLUTIONS | 0 | 1 |
| HARRIS-WALLER COUNTIES MUD 4 | 0 | 0 |
| WALLER COUNTY MUD 55 | 0 | 0 |
TRI Facilities (50)
Superfund Sites (16)
| Site Name | Status | HRS Score |
|---|---|---|
| Brio Refining, Inc. | Deleted NPL Site | 50.38 |
| Crystal Chemical Co. | NPL Site | 60.90 |
| Dixie Oil Processors, Inc. | Deleted NPL Site | 34.21 |
| French, Ltd. | NPL Site | 63.33 |
| Geneva Industries/Fuhrmann Energy | NPL Site | 59.46 |
| Harris (Farley Street) | Deleted NPL Site | 33.94 |
| Highlands Acid Pit | NPL Site | 37.77 |
| Jones Road Ground Water Plume | NPL Site | 46.50 |
| Many Diversified Interests, Inc. | NPL Site | 32.07 |
| North Cavalcade Street | NPL Site | 37.08 |
| Patrick Bayou | NPL Site | 47.83 |
| San Jacinto River Waste Pits | NPL Site | 50.00 |
| Sikes Disposal Pits | NPL Site | 61.62 |
| Sol Lynn/Industrial Transformers | NPL Site | 39.65 |
| South Cavalcade Street | NPL Site | 38.69 |
| US Oil Recovery | NPL Site | 50.00 |
Cities in Harris (27)
Houston
251 facilities · 734 water
Pasadena
67 facilities · 2 water
La Porte
33 facilities · 2 water
Deer Park
13 facilities · 1 water
Katy
11 facilities · 8 water
Galena Park
9 facilities · 1 water
Tomball
7 facilities · 7 water
Channelview
7 facilities · 3 water
Spring
6 facilities · 17 water
Humble
6 facilities · 2 water
Seabrook
5 facilities · 1 water
Hockley
4 facilities · 2 water
Waller
2 facilities · 8 water
South Houston
2 facilities · 1 water
Cypress
1 facilities · 146 water
Crosby
1 facilities · 12 water
Highlands
1 facilities · 5 water
Jersey Village
1 facilities · 1 water
Bellaire
0 facilities · 2 water
El Lago
0 facilities · 1 water
Jacinto City
0 facilities · 1 water
Kingwood
0 facilities · 1 water
Nassau Bay
0 facilities · 1 water
Savannah
0 facilities · 1 water
Shoreacres
0 facilities · 1 water
Webster
0 facilities · 1 water
West University Place
0 facilities · 1 water
Frequently Asked Questions
What is the environmental risk level in Harris, Texas? ▼
Harris, TX has an environmental risk score of 100/100 (High Risk), based on 50 TRI facilities, 16 Superfund sites, and 909 water systems on record. 157 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Harris? ▼
Yes, Harris, TX has 16 Superfund sites on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in Harris? ▼
Harris, TX has 50 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 196.6M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Harris? ▼
In 2024, Harris, TX recorded a median AQI of 61 and a peak AQI of 201. 14% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Harris? ▼
Harris, TX has 909 EPA-regulated water systems. 157 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Harris? ▼
Environmental compliance in Harris, Texas is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Texas state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro