CityFunIndex

Portland, OR · the CityFunIndex

Air quality in Portland

Portland ranks #37 of 134 US cities for clean air, with a clean-air score of 73 — Very Fun. That puts it in the 73rd percentile nationally and #2 of 2 in Oregon.

clean-air score
73
Very Fun
National rank
#37 of 134
In Oregon
#2 of 2
Percentile
73rd

The typical city scores 50 for clean air; Portland sits 23 points above the median.

How air quality is measured

Recent particulate matter and ozone levels — a trailing-week air-quality average.

The clean-air score is the flip side of our air quality measure — 100 minus the raw air quality score — so a city with less of it scores higher.

Data sources: EPA AirNow and OpenAQ pollution readings (seven-day trailing average).

Full methodology → Glossary The raw measurement is part of the Data plan →

Ranked around Portland

  1. T#35 Nashville, TN 74
  2. T#35 Oakland, CA 74
  3. #37 Portland, OR — this page 73
  4. #38 St. Petersburg, FL 72
  5. T#39 Greensboro, NC 71

See the full leaderboard — Cities with the cleanest air →

Top US cities for clean air

  1. #1 Anchorage, AK 100
  2. #2 Bend, OR 99
  3. T#3 Lubbock, TX 98
  4. T#3 Telluride, CO 98
  5. #5 Montgomery, AL 97

More about Portland

Portland scores 81 overall (Very Fun) on the CityFunIndex. Its strongest factors: