Air quality · Georgia
Air quality in Georgia
Across the 8 Georgia ZIPs with EPA county air-quality data, the median day is Good in all 8 (median AQI 41–49). 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 Georgia
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 |
|---|---|---|---|
| 30303AtlantaFulton County | 49 Good | 198 of 365 | 0 |
| 30309Atlanta (Midtown)Fulton County | 49 Good | 198 of 365 | 0 |
| 30024SuwaneeGwinnett County | 47 Good | 211 of 362 | 0 |
| 31401SavannahChatham County | 47 Good | 214 of 365 | 0 |
| 31561Sea IslandGlynn County | 41 Good | 255 of 343 | 0 |
| 30606Athens (GA)Clarke County | 46 Good | 211 of 365 | 0 |
| 30075Roswell (GA)Fulton County | 49 Good | 198 of 365 | 0 |
| 30022Alpharetta (GA)Fulton County | 49 Good | 198 of 365 | 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 →
Georgia top concern
Coastal flood (Savannah/Brunswick), tornadoes
Georgia has both Atlantic coastal AE/VE zones and inland tornado/wind exposure. Wildfire risk in southeastern flatwoods. EPA SDWIS compliance varies sharply between urban Atlanta utilities and small rural systems in southwest GA.
See Georgia state page for the full state-level rollup across all 12 dimensions.
Read more on air quality
Editorial deep-dives explaining the source data, its limits, and how to read it.
EPA AQI categories explained — what 0–50 Good through 301–500 Hazardous mean
Plain-English guide to the six EPA Air Quality Index categories: 0–50 Good, 51–100 Moderate, 101–150 Unhealthy for Sensitive Groups, 151–200 Unhealthy, 201–300 Very Unhealthy, 301–500 Hazardous — what each level means and who is at risk.
AQI explained — what 50, 100, 150 actually mean for your lungs
Plain-English guide to the EPA Air Quality Index (AQI) and the 6 categories from Good to Hazardous. When to take precautions and which pollutants matter.
Wildfire Hazard Potential — what the USFS scale means and how to defend your home
Plain-English guide to the USDA Forest Service's Wildfire Hazard Potential 1–5 scale, how to read your community's risk, and concrete home-defense measures.
AirNow + wildfire smoke — when AQI is a real-time tool
How EPA AirNow handles real-time wildfire smoke, what the colors mean during fire season, and where AirNow leaves gaps you should know about.