Air quality · Nebraska
Air quality in Nebraska
Across the 3 Nebraska ZIPs with EPA county air-quality data, the median day is Good in all 3 (median AQI 37–42). No day in those counties reached Unhealthy 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 Nebraska
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 |
|---|---|---|---|
| 68102OmahaDouglas County | 42 Good | 259 of 365 | 0 |
| 68114Omaha (West)Douglas County | 42 Good | 259 of 365 | 0 |
| 68506Lincoln (NE)Lancaster County | 37 Good | 240 of 281 | 0 |
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 →
Nebraska top concern
Radon, agricultural water, tornadoes
Nebraska is uniformly Zone 1 radon. Ogallala aquifer + agricultural runoff create EPA SDWIS nitrate compliance pressure in many rural systems. Central Tornado Alley.
See Nebraska state page for the full state-level rollup across all 12 dimensions.
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