Median AQI
33
Good
Texas · County air quality · 2025
Hunt County, Texas
Median AQI 33 (Good). 94.7% of monitored days rated Good, direct from EPA Air Quality System stations.
- 33
- Median AQI
- 94.7%
- Good-air days
- 0
- Unhealthy days
- 88%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Hunt County's air is good on balance, cleaner than most US counties, a median AQI of 33 with 94.7% of 209 monitored days in the Good band, driven mainly by Ozone.
- 33
- median AQI · Good
- 94.7%
- days rated Good
- Ozone
- main pollutant
- 88%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 93.
Data updated July 2026
- Good · 198 d · 94.7%
- Moderate · 11 d · 5.3%
How did Hunt County's air break down in 2025?
Across 209 monitored days, 198 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 93 (Moderate).
EPA AQS →Air quality data from EPA Air Quality System (2025). 209 days monitored. Median AQI: 33 (Good).
Insights: Hunt County, Texas. EPA monitors recorded a median Air Quality Index of 33 across 209 measured days in 2025, earning a Good classification and a Excellent health grade. Of those days, 198 (95%) fell in the Good band (AQI 0–50), 11 (5%) registered Moderate readings, and 0 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 48, while the worst single-day peak hit 93 (Moderate). Residents averaged about 28.4 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as Ozone (194 days), NO2 (15 days). Across the 2020–2025 trend window, good days shifted by -153 and the median AQI moved +1 points, placing the multi-year trajectory at stable. The worst single reading over the 2020–2025 window was AQI 93, moderate but never Unhealthy. Nearby counties show comparable readings: Atascosa (58.0% good, AQI 45); Bell (61.3% good, AQI 47); Bexar (39.8% good, AQI 53); Bowie (57.3% good, AQI 47); Brazoria (84.8% good, AQI 33); Brazos (63.4% good, AQI 43).
Air Quality Summary
Good Days
94.7%
198 of 209 monitored days
19.7pp vs 75% target
Max AQI Recorded
93
Moderate
Health Grade
Excellent
90th-pct AQI 48
Hunt County, Good days share 94.7%
National avg
Share of monitored days at AQI 0-50 (Good band).
Hunt 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 209 monitored days across EPA AQI categories.
Good
198
95%
Moderate
11
5%
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 Hunt County.
- Ozone · 194 days · 92.8%
- NO₂ · 15 days · 7.2%
Health Impact Assessment
Excellent
Hunt County's air quality is rated Excellent based on 94.7% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 94.7% of monitored days in 2025, with a median AQI of 33. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is Ozone, driving AQI on 194 of 209 monitored days.
5-Year Air Quality Trend
Air quality is stable in Hunt County. Best year: 2020 (351 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 351 | 15 | 0 | 0 | 32 | 87 |
| 2021 | 343 | 19 | 0 | 0 | 33 | 93 |
| 2022 | 330 | 28 | 0 | 0 | 36 | 97 |
| 2023 | 314 | 43 | 2 | 0 | 37 | 119 |
| 2024 | 324 | 36 | 2 | 0 | 37 | 133 |
| 2025 | 198 | 11 | 0 | 0 | 33 | 93 |
How does Hunt County compare?
How Hunt County compares
Good-day share better than US avg
Hunt County 94.7%
Atascosa County, Texas 58.0%
US average 76.5%
Median AQI better than US avg
Hunt County 33
Atascosa County, Texas 45
US average 38
Unhealthy days / yr about average
Hunt County 0
Atascosa County, Texas 0
US average 0
Other Counties in Texas
Air quality comparison for nearby counties in Texas.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Hunt County.
Ascension County, Louisiana
AQI 33 · 94.1% good
Athens County, Ohio
AQI 33 · 80.3% good
Brazoria County, Texas
AQI 33 · 84.8% good
Bristol City County, Virginia
AQI 33 · 78.3% good
Carter County, Oklahoma
AQI 33 · 80.9% good
Codington County, South Dakota
AQI 33 · 82.1% good
What Hunt County's air means for you
The air here stays in the breathable range year-round, with Ozone the main thing to watch.
- Sensitive groups (asthma, heart conditions, children, older adults) should check the AQI on high-Ozone days, the guide explains what a median of 33 means for exposure. Health guidance
- See how Hunt County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Hunt County with its Texas neighbours before drawing a conclusion about the region. All of Texas
Based on 209 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 Hunt County, Texas? ▼
Hunt County has a median Air Quality Index (AQI) of 33, rated "Good." 94.7% of monitored days (198 out of 209) had good air quality in 2025.
What is the main pollutant in Hunt County? ▼
The primary pollutant in Hunt County is Ozone (O3), which was the main AQI driver on 194 days (93% of monitored days). Can trigger asthma, reduce lung function, and cause chest pain.
How many unhealthy air days does Hunt County have? ▼
In 2025, Hunt County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 93.
Is the air quality in Hunt County getting better or worse? ▼
Air quality in Hunt County is stable based on 5-year trends (2020-2025). Best year: 2020 with 351 good days. Worst year: 2025 with 198 good days.
What does AQI 33 mean for health? ▼
Hunt County's median AQI of 33 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 Hunt County compare to other counties in Texas? ▼
Hunt County has 94.7% good air days. Nearby counties in Texas: Atascosa (58.0% good), Bell (61.3% good), Bexar (39.8% good), Bowie (57.3% good), Brazoria (84.8% good), Brazos (63.4% good).
What is the 90th percentile AQI in Hunt County? ▼
The 90th percentile AQI for Hunt County is 48, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 93 (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.