Oregon Air Quality

Real-time AQI data and air quality trends for 425 cities across Oregon.

Statewide Air Quality Overview

29
Average AQI
3148
Good Air Days
646
Moderate Days
Unhealthy Days
117
Highest AQI

Based on 2025 EPA data

Cleanest Air in Oregon

1. Deschutes River WoodsMedian AQI: 22
→
2. UnionMedian AQI: 22
→
3. La GrandeMedian AQI: 22
→
4. Crooked River RanchMedian AQI: 22
→
5. Camp ShermanMedian AQI: 22
→
View All Rankings →

Most Polluted in Oregon

1. LakeviewMedian AQI: 24
→
2. ScioMedian AQI: 24
→
3. Sweet HomeMedian AQI: 24
→
4. MillersburgMedian AQI: 24
→
5. LostineMedian AQI: 23
→
View All Rankings →

Learn About Air Quality

What Is the AQI?
Understand how the Air Quality Index is calculated and what each level means for your health.
Pollutant Guide
Learn about PM2.5, ozone, and other pollutants that affect air quality across Oregon.
National Rankings
Compare Oregon cities to the rest of the US by air quality grade and median AQI.

All Cities in Oregon

ABCDEFGHIJKLMNOPRSTUVWY