Median AQI
38
Good
Vermont · County air quality · 2025
Rutland County, Vermont
Median AQI 38 (Good). 78.9% of monitored days rated Good, direct from EPA Air Quality System stations.
- 38
- Median AQI
- 78.9%
- Good-air days
- 0
- Unhealthy days
- 49%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Rutland County's air is good on balance, more polluted than the median US county, a median AQI of 38 with 78.9% of 180 monitored days in the Good band, driven mainly by Ozone.
- 38
- median AQI · Good
- 78.9%
- days rated Good
- Ozone
- main pollutant
- 49%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 92.
Data updated July 2026
- Good · 142 d · 78.9%
- Moderate · 38 d · 21.1%
How did Rutland County's air break down in 2025?
Across 180 monitored days, 142 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 92 (Moderate).
EPA AQS →Air quality data from EPA Air Quality System (2025). 180 days monitored. Median AQI: 38 (Good).
Insights: Rutland County, Vermont. EPA monitors recorded a median Air Quality Index of 38 across 180 measured days in 2025, earning a Good classification and a Good health grade. Of those days, 142 (79%) fell in the Good band (AQI 0–50), 38 (21%) registered Moderate readings, and 0 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 57, while the worst single-day peak hit 92 (Moderate). Residents averaged about 23.7 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as Ozone (124 days), PM2.5 (56 days). Across the 2020–2025 trend window, good days shifted by -141 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 92, moderate but never Unhealthy. Nearby counties show comparable readings: Bennington (82.9% good, AQI 39); Chittenden (91.2% good, AQI 40); Windham (100.0% good, AQI 12).
Air Quality Summary
Good Days
78.9%
142 of 180 monitored days
3.9pp vs 75% target
Max AQI Recorded
92
Moderate
Health Grade
Good
90th-pct AQI 57
Rutland County, Good days share 78.9%
National avg
Share of monitored days at AQI 0-50 (Good band).
Rutland 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 180 monitored days across EPA AQI categories.
Good
142
79%
Moderate
38
21%
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 Rutland County.
- Ozone · 124 days · 68.9%
- PM2.5 · 56 days · 31.1%
Health Impact Assessment
Good
Rutland County's air quality is rated Good based on 78.9% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 78.9% of monitored days in 2025, with a median AQI of 38. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is Ozone, driving AQI on 124 of 180 monitored days.
5-Year Air Quality Trend
Air quality is stable in Rutland County. Best year: 2024 (291 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 283 | 83 | 0 | 0 | 39 | 97 |
| 2021 | 265 | 99 | 1 | 0 | 40 | 114 |
| 2022 | 278 | 87 | 0 | 0 | 39 | 74 |
| 2023 | 267 | 95 | 2 | 0 | 38 | 147 |
| 2024 | 291 | 75 | 0 | 0 | 37 | 86 |
| 2025 | 142 | 38 | 0 | 0 | 38 | 92 |
How does Rutland County compare?
How Rutland County compares
Good-day share better than US avg
Rutland County 78.9%
Bennington County, Vermont 82.9%
US average 76.5%
Median AQI about average
Rutland County 38
Bennington County, Vermont 39
US average 38
Unhealthy days / yr about average
Rutland County 0
Bennington County, Vermont 0
US average 0
Other Counties in Vermont
Air quality comparison for nearby counties in Vermont.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Rutland County.
Adams County, Illinois
AQI 38 · 94.4% good
Anoka County, Minnesota
AQI 38 · 82.1% good
Atlantic County, New Jersey
AQI 38 · 79.6% good
Avery County, North Carolina
AQI 38 · 93.9% good
Barnstable County, Massachusetts
AQI 38 · 92.5% good
Bay County, Michigan
AQI 38 · 71.8% good
What Rutland 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 38 means for exposure. Health guidance
- See how Rutland County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Rutland County with its Vermont neighbours before drawing a conclusion about the region. All of Vermont
Based on 180 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 Rutland County, Vermont? ▼
Rutland County has a median Air Quality Index (AQI) of 38, rated "Good." 78.9% of monitored days (142 out of 180) had good air quality in 2025.
What is the main pollutant in Rutland County? ▼
The primary pollutant in Rutland County is Ozone (O3), which was the main AQI driver on 124 days (69% of monitored days). Can trigger asthma, reduce lung function, and cause chest pain.
How many unhealthy air days does Rutland County have? ▼
In 2025, Rutland County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 92.
Is the air quality in Rutland County getting better or worse? ▼
Air quality in Rutland County is stable based on 5-year trends (2020-2025). Best year: 2024 with 291 good days. Worst year: 2025 with 142 good days.
What does AQI 38 mean for health? ▼
Rutland County's median AQI of 38 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 Rutland County compare to other counties in Vermont? ▼
Rutland County has 78.9% good air days. Nearby counties in Vermont: Bennington (82.9% good), Chittenden (91.2% good), Windham (100.0% good).
What is the 90th percentile AQI in Rutland County? ▼
The 90th percentile AQI for Rutland County is 57, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 92 (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.