Leon, FL
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Leon in Florida · Population: 295,335
Leon, FL is tracked across three EPA datasets covering 6 Toxics Release Inventory (TRI) facilities, 26 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 32/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 40.1K lbs of reported toxic releases under EPCRA Section 313, while 9 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 44 and a peak AQI of 129 in 2024, with 68% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 243 (68%) | 111 | 1 | 129 |
| 2023 | 204 (57%) | 156 | 1 | 124 |
| 2022 | 211 (58%) | 153 | 0 | 93 |
| 2021 | 194 (53%) | 171 | 0 | 80 |
| 2020 | 185 (51%) | 178 | 2 | 163 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 Florida, see the EPA's AirNow.gov.
Water Systems (26)
| System | Population | Violations |
|---|---|---|
| TALLAHASSEE, CITY OF | 200,480 | 0 |
| FLORIDA STATE PRISON | 5,980 | 0 |
| WATER MGMT SERVICES (ST. GEORGE ISLAND) | 5,272 | 6 |
| RECEPTION AND MEDICAL CENTER | 3,000 | 0 |
| AVON PARK CORRECTIONAL INSTITUTION | 3,000 | 0 |
| NORTHWEST FLORIDA RECEPTION CENTER | 2,500 | 22 |
| SUMTER CORRECTIONAL INSTITUTION | 2,008 | 0 |
| HARDEE CORRECTIONAL INSTITUTE | 1,900 | 0 |
| LIBERTY CORRECTIONAL INSTITUTION | 1,800 | 4 |
| OKALOOSA CORRECTIONAL INST. | 1,800 | 1 |
| APALACHEE CORRECTIONAL INSTITUTION | 1,756 | 0 |
| GULF CORRECTIONAL INSTITUTION | 1,701 | 2 |
| OKEECHOBEE CORRECTIONAL INST | 1,700 | 2 |
| BAKER CORRECTIONAL INSTITUTION | 1,500 | 0 |
| LAKE CORRECTIONAL INSTITUTION | 1,500 | 0 |
| POLK CORRECTIONAL INSTITUTION | 1,500 | 0 |
| MAYO CORRECTIONAL INSTITUTION | 1,400 | 0 |
| JACKSON CORRECTIONAL INSTITUTION | 1,307 | 5 |
| JEFFERSON CORRECTIONAL INSTITUTION | 1,300 | 0 |
| LANCASTER CORRECTIONAL INSTITUTE | 1,175 | 0 |
| TWIN LAKES MOBILE HOME PARK | 182 | 0 |
| TRANSITION HOUSE AT DINSMORE | 150 | 1 |
| HINSON HEIGHTS | 120 | 0 |
| BOWEN MOBILE HOME PARK | 81 | 0 |
| DADE JUVENILE RESIDENTIAL FACILITY | 75 | 25 |
| WOODLAND OF MOULTRIE SUBDIVISION | 49 | 0 |
TRI Facilities (6)
| # | Facility | Total Releases |
|---|---|---|
| 1 | City of Tallahassee Arvah B. Hopkins Generating Station | 32.4K lbs |
| 2 | Safety-Kleen Systems Tallahassee (tal) | 6.5K lbs |
| 3 | Veolia N.a. Inc. | 1.2K lbs |
| 4 | Bayou Concrete LLC - Tallahassee | 0 lbs |
| 5 | Best Block - Tallahassee Block Plant | 0 lbs |
| 6 | General Dynamics Land Systems | 0 lbs |
Cities in Leon (1)
Frequently Asked Questions
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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.