🌿 CleanAirData

Find the Cleanest Air
for Your Next Home

Comprehensive air quality rankings based on 2021-2025 EPA data. Discover accurate Clean Air Scores for 653 US cities.

653
Cities Analyzed
75.6
Average Score
136
Top Tier (A) Cities

🏆 Cleanest Cities 2026

#1
Kihei
HI
89.8 Grade A
#2
Mountain View
HI
89.8 Grade A
#3
Naalehu
HI
89.8 Grade A
#4
Not in a city
HI
89.8 Grade A
#5
Hilo
HI
89.7 Grade A
#6
Carmel Valley Village
CA
89.6 Grade A
#7
Honolulu
HI
89.6 Grade A
#8
Kealakekua
HI
89.6 Grade A
#9
Anacortes
WA
89.6 Grade A
#10
Bremerton
WA
89.6 Grade A
View All Rankings →

📈 Most Improved (5-Year)

Trend data compilation in progress.

Check back soon for 5-year improvement rankings.