Air quality · Oklahoma
Air quality in Oklahoma
Across the 3 Oklahoma ZIPs with EPA county air-quality data, the median day ranges from Good to Moderate (median AQI 50–51). 3 days across those counties reached Unhealthy or worse in 2025. This is a 2025 county annual summary, not a live reading.
Last verified 2026-09-24 · methodology
Air quality by ZIP code in Oklahoma
EPA's 2025 annual summary for each ZIP's county. Median AQI is the typical day; lower is cleaner.
| ZIP | Median AQI | Good days | Unhealthy or worse |
|---|---|---|---|
| 73102Oklahoma CityOklahoma County | 51 Moderate | 182 of 365 | 1 |
| 74103TulsaTulsa County | 50 Good | 185 of 365 | 1 |
| 74133Tulsa (S Memorial)Tulsa County | 50 Good | 185 of 365 | 1 |
County-level figures from EPA Air Quality System (AQS), annual county summary, joined to each ZIP by county. None of them is a measurement at a specific address.
What lands here
Pages show the 2025 median AQI category (Good, Moderate, Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, Hazardous) for the ZIP's county, plus the year's max/90th-percentile AQI and day-count breakdown by category.
Source & refresh
EPA Air Quality System (AQS), annual county summary. Refreshed annual (epa aqs publication). Primary source →
Oklahoma top concern
Tornadoes, induced seismicity, water-supply
Oklahoma sits in the heart of Tornado Alley. Induced seismicity (oil/gas wastewater injection) has flagged some EPA SDWIS small systems. Radon risk is Zone 1-2 across most counties.
See Oklahoma state page for the full state-level rollup across all 12 dimensions.
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