Median AQI
44
Good
Georgia · County air quality · 2025
Coffee County, Georgia
Median AQI 44 (Good). 69.1% of monitored days rated Good, direct from EPA Air Quality System stations.
- 44
- Median AQI
- 69.1%
- Good-air days
- 0
- Unhealthy days
- 30%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Coffee County's air is good on balance, more polluted than the median US county, a median AQI of 44 with 69.1% of 243 monitored days in the Good band, driven mainly by PM2.5.
- 44
- median AQI · Good
- 69.1%
- days rated Good
- PM2.5
- main pollutant
- 30%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 78.
Data updated July 2026
- Good · 168 d · 69.1%
- Moderate · 75 d · 30.9%
How did Coffee County's air break down in 2025?
Across 243 monitored days, 168 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 78 (Moderate).
EPA AQS →Air quality data from EPA Air Quality System (2025). 243 days monitored. Median AQI: 44 (Good).
Insights: Coffee County, Georgia. EPA monitors recorded a median Air Quality Index of 44 across 243 measured days in 2025, earning a Good classification and a Moderate health grade. Of those days, 168 (69%) fell in the Good band (AQI 0–50), 75 (31%) registered Moderate readings, and 0 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 61, while the worst single-day peak hit 78 (Moderate). Residents averaged about 20.7 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as PM2.5 (243 days). Across the 2020–2025 trend window, good days shifted by +69 and the median AQI moved +11 points, placing the multi-year trajectory at worsening. The worst single reading over the 2020–2025 window was AQI 78, moderate but never Unhealthy. Nearby counties show comparable readings: Bibb (49.5% good, AQI 51); Charlton (79.0% good, AQI 24); Chatham (66.7% good, AQI 44); Clarke (66.7% good, AQI 44); Clayton (53.1% good, AQI 49); Cobb (92.5% good, AQI 36).
Air Quality Summary
Good Days
69.1%
168 of 243 monitored days
-5.9pp vs 75% target
Max AQI Recorded
78
Moderate
Health Grade
Moderate
90th-pct AQI 61
Coffee County, Good days share 69.1%
National avg
Share of monitored days at AQI 0-50 (Good band).
Coffee County, Unhealthy-or-worse share 0.0%
National avg
Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).
AQI Day Breakdown (2025)
Distribution of 243 monitored days across EPA AQI categories.
Good
168
69%
Moderate
75
31%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Coffee County.
- PM2.5 · 243 days · 100.0%
Health Impact Assessment
Moderate
Coffee County's air quality is rated Moderate based on 69.1% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 69.1% of monitored days in 2025, with a median AQI of 44. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is PM2.5, driving AQI on 243 of 243 monitored days.
5-Year Air Quality Trend
Air quality is worsening in Coffee County. Best year: 2024 (240 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 99 | 20 | 1 | 0 | 33 | 108 |
| 2021 | 91 | 25 | 0 | 0 | 35 | 69 |
| 2022 | 94 | 25 | 0 | 0 | 36 | 74 |
| 2023 | 128 | 62 | 1 | 0 | 41 | 130 |
| 2024 | 240 | 115 | 1 | 0 | 43 | 137 |
| 2025 | 168 | 75 | 0 | 0 | 44 | 78 |
How does Coffee County compare?
How Coffee County compares
Good-day share worse than US avg
Coffee County 69.1%
Bibb County, Georgia 49.5%
US average 76.5%
Median AQI worse than US avg
Coffee County 44
Bibb County, Georgia 51
US average 38
Unhealthy days / yr about average
Coffee County 0
Bibb County, Georgia 0
US average 0
Other Counties in Georgia
Air quality comparison for nearby counties in Georgia.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Coffee County.
Baltimore County, Maryland
AQI 44 · 70.4% good
Baltimore (City) County, Maryland
AQI 44 · 68.7% good
Bartholomew County, Indiana
AQI 44 · 69.2% good
Berks County, Pennsylvania
AQI 44 · 65.6% good
Bolivar County, Mississippi
AQI 44 · 70.3% good
Brewster County, Texas
AQI 44 · 69.0% good
What Coffee County's air means for you
The air here stays in the breathable range year-round, with PM2.5 the main thing to watch.
- Sensitive groups (asthma, heart conditions, children, older adults) should check the AQI on high-PM2.5 days, the guide explains what a median of 44 means for exposure. Health guidance
- See how Coffee County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Coffee County with its Georgia neighbours before drawing a conclusion about the region. All of Georgia
Based on 243 EPA-monitored days in 2025; figures reflect only days the monitors reported. Source: EPA Air Quality System annual summaries.
More Air Quality Data
Air Quality Guides
Frequently Asked Questions
What is the air quality in Coffee County, Georgia? ▼
Coffee County has a median Air Quality Index (AQI) of 44, rated "Good." 69.1% of monitored days (168 out of 243) had good air quality in 2025.
What is the main pollutant in Coffee County? ▼
The primary pollutant in Coffee County is Fine Particles (PM2.5), which was the main AQI driver on 243 days (100% of monitored days). Penetrates deep into lungs and bloodstream. Linked to heart disease and premature death.
How many unhealthy air days does Coffee County have? ▼
In 2025, Coffee County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 78.
Is the air quality in Coffee County getting better or worse? ▼
Air quality in Coffee County is worsening based on 5-year trends (2020-2025). Best year: 2024 with 240 good days. Worst year: 2021 with 91 good days.
What does AQI 44 mean for health? ▼
Coffee County's median AQI of 44 falls in the "Good" category. See the <a href="/guides/understanding-aqi" class="underline">AQI category guide</a> for what each range means for health.
How does Coffee County compare to other counties in Georgia? ▼
Coffee County has 69.1% good air days. Nearby counties in Georgia: Bibb (49.5% good), Charlton (79.0% good), Chatham (66.7% good), Clarke (66.7% good), Clayton (53.1% good), Cobb (92.5% good).
What is the 90th percentile AQI in Coffee County? ▼
The 90th percentile AQI for Coffee County is 61, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 78 (Moderate).
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.
Informational only, not professional advice. Data from EPA AQS. See our disclaimer.
Every figure on PlainAir is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.