Median AQI
39
Good
Minnesota · County air quality · 2025
Wright County, Minnesota
Median AQI 39 (Good). 83.4% of monitored days rated Good, direct from EPA Air Quality System stations.
- 39
- Median AQI
- 83.4%
- Good-air days
- 0
- Unhealthy days
- 61%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Wright County's air is good on balance, cleaner than the median US county, a median AQI of 39 with 83.4% of 157 monitored days in the Good band, driven mainly by Ozone.
- 39
- median AQI · Good
- 83.4%
- days rated Good
- Ozone
- main pollutant
- 61%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 101.
Data updated July 2026
- Good · 131 d · 83.4%
- Moderate · 25 d · 15.9%
- USG · 1 d · 0.6%
How did Wright County's air break down in 2025?
Across 157 monitored days, 131 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 101 (USG).
EPA AQS →Air quality data from EPA Air Quality System (2025). 157 days monitored. Median AQI: 39 (Good).
Insights: Wright County, Minnesota. EPA monitors recorded a median Air Quality Index of 39 across 157 measured days in 2025, earning a Good classification and a Good health grade. Of those days, 131 (83%) fell in the Good band (AQI 0–50), 25 (16%) registered Moderate readings, and 1 (1%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 58, while the worst single-day peak hit 101 (USG). Residents averaged about 25.0 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as Ozone (112 days), PM2.5 (45 days). Across the 2020–2025 trend window, good days shifted by -158 and the median AQI moved +2 points, placing the multi-year trajectory at stable. The worst single reading over the 2020–2025 window was AQI 101, usg but never Unhealthy. Nearby counties show comparable readings: Anoka (82.1% good, AQI 38); Becker (84.7% good, AQI 38); Beltrami (88.8% good, AQI 37); Blue Earth (82.7% good, AQI 38); Carlton (92.9% good, AQI 35); Cass (94.4% good, AQI 22).
Air Quality Summary
Good Days
83.4%
131 of 157 monitored days
8.4pp vs 75% target
Max AQI Recorded
101
USG
Health Grade
Good
90th-pct AQI 58
Wright County, Good days share 83.4%
National avg
Share of monitored days at AQI 0-50 (Good band).
Wright 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 157 monitored days across EPA AQI categories.
Good
131
83%
Moderate
25
16%
USG
1
1%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Wright County.
- Ozone · 112 days · 71.3%
- PM2.5 · 45 days · 28.7%
Health Impact Assessment
Good
Wright County's air quality is rated Good based on 83.4% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 83.4% of monitored days in 2025, with a median AQI of 39. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is Ozone, driving AQI on 112 of 157 monitored days.
5-Year Air Quality Trend
Air quality is stable in Wright County. Best year: 2020 (289 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 289 | 67 | 1 | 0 | 37 | 112 |
| 2021 | 233 | 119 | 3 | 2 | 43 | 193 |
| 2022 | 278 | 78 | 0 | 0 | 41 | 90 |
| 2023 | 183 | 145 | 18 | 3 | 49 | 186 |
| 2024 | 277 | 86 | 3 | 0 | 41 | 110 |
| 2025 | 131 | 25 | 1 | 0 | 39 | 101 |
How does Wright County compare?
How Wright County compares
Good-day share better than US avg
Wright County 83.4%
Anoka County, Minnesota 82.1%
US average 76.5%
Median AQI worse than US avg
Wright County 39
Anoka County, Minnesota 38
US average 38
Unhealthy days / yr about average
Wright County 0
Anoka County, Minnesota 1
US average 0
Other Counties in Minnesota
Air quality comparison for nearby counties in Minnesota.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Wright County.
Ada County, Idaho
AQI 39 · 80.6% good
Aiken County, South Carolina
AQI 39 · 89.1% good
Albany County, New York
AQI 39 · 67.4% good
Alexander County, North Carolina
AQI 39 · 92.4% good
Ashland County, Wisconsin
AQI 39 · 85.6% good
Bennington County, Vermont
AQI 39 · 82.9% good
What Wright 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 39 means for exposure. Health guidance
- See how Wright County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Wright County with its Minnesota neighbours before drawing a conclusion about the region. All of Minnesota
Based on 157 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 Wright County, Minnesota? ▼
Wright County has a median Air Quality Index (AQI) of 39, rated "Good." 83.4% of monitored days (131 out of 157) had good air quality in 2025.
What is the main pollutant in Wright County? ▼
The primary pollutant in Wright County is Ozone (O3), which was the main AQI driver on 112 days (71% of monitored days). Can trigger asthma, reduce lung function, and cause chest pain.
How many unhealthy air days does Wright County have? ▼
In 2025, Wright County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 101.
Is the air quality in Wright County getting better or worse? ▼
Air quality in Wright County is stable based on 5-year trends (2020-2025). Best year: 2020 with 289 good days. Worst year: 2025 with 131 good days.
What does AQI 39 mean for health? ▼
Wright County's median AQI of 39 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 Wright County compare to other counties in Minnesota? ▼
Wright County has 83.4% good air days. Nearby counties in Minnesota: Anoka (82.1% good), Becker (84.7% good), Beltrami (88.8% good), Blue Earth (82.7% good), Carlton (92.9% good), Cass (94.4% good).
What is the 90th percentile AQI in Wright County? ▼
The 90th percentile AQI for Wright County is 58, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 101 (USG).
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.