The city directory

Find your place.
Understand its air.

Explore historical PM2.5 patterns, available local observations, and the context behind each city’s score. Browse EPA-based Clean Air Scores, see how cities compare in our National Rankings, and learn about our data sources in the Methodology.

Leading historical Clean Air Scores

#1 Hilo, HI #2 Honolulu, HI #3 Anacortes, WA #4 Bremerton, WA #5 Pearl City, HI #6 Waipahu, HI #7 Mount Vernon, WA #8 Mililani Town, HI #9 Bainbridge Island, WA #10 Oak Harbor, WA

Explore by region

Start close to home, or explore the air in a place you are considering visiting.

AQI Today

Local observations and historical context for major cities.

Los Angeles, CA Denver, CO Phoenix, AZ New York City, NY Atlanta, GA Las Vegas, NV Dallas, TX Austin, TX Sacramento, CA Orlando, FL

The Southwest

Explore desert cities and their long-term air quality patterns.

Yuma, AZ Tucson, AZ Sierra Vista, AZ Nogales, AZ Payson, UT

West Coast and beyond

Compare coastal, inland, and urban air quality reports.

Fremont, CA Fresno, CA Irvine, CA North Las Vegas, NV Bakersfield, CA San Luis Obispo, CA Seattle, WA Boston, MA Eugene, OR Gallatin, TN Unhealthy Days

More places to explore

Open a local report to see the available data and its sources.

Los Angeles, CA Yuma, AZ Tucson, AZ Sierra Vista, AZ Denver, CO Atlanta, GA Phoenix, AZ New York City, NY Las Vegas, NV Dallas, TX Sacramento, CA Irvine, CA

Showing 1-50 of 2771 Cities

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City	State	Score	Grade	PM2.5 (Ann.)	Trend
Hilo	HI	89.7	Grade A	2.7	Improving ↓	View
Honolulu	HI	89.6	Grade A	4.1	Stable	View
Anacortes	WA	89.6	Grade A	4.4	Improving ↓	View
Bremerton	WA	89.6	Grade A	3.9	Improving ↓	View
Pearl City	HI	89.6	Grade A	4.1	Stable	View
Waipahu	HI	89.6	Grade A	4.1	Stable	View
Mount Vernon	WA	89.6	Grade A	4.4	Improving ↓	View
Mililani Town	HI	89.6	Grade A	4.1	Stable	View
Bainbridge Island	WA	89.6	Grade A	3.9	Improving ↓	View
Oak Harbor	WA	89.6	Grade A	4.4	Improving ↓	View
‘Ewa Gentry	HI	89.6	Grade A	4.1	Stable	View
Port Angeles	WA	89.6	Grade A	4.4	Improving ↓	View
Silverdale	WA	89.6	Grade A	3.9	Improving ↓	View
Makakilo	HI	89.6	Grade A	4.1	Stable	View
Wahiawā	HI	89.6	Grade A	4.1	Stable	View
Kailua	HI	89.5	Grade A	2.9	Improving ↓	View
East Honolulu	HI	89.5	Grade A	2.9	Improving ↓	View
Kaneohe	HI	89.5	Grade A	2.9	Improving ↓	View
San Luis Obispo	CA	89.4	Grade A	3.9	Improving ↓	View
Pueblo	CO	89.4	Grade A	4.7	Stable	View
Portland	OR	89.4	Grade A	4.9	Improving ↓	View
Vancouver	WA	89.4	Grade A	4.5	Improving ↓	View
Gresham	OR	89.4	Grade A	4.9	Improving ↓	View
Beaverton	OR	89.4	Grade A	4.9	Improving ↓	View
Longview	WA	89.4	Grade A	4.5	Improving ↓	View
Pueblo West	CO	89.4	Grade A	4.7	Stable	View
Camas	WA	89.4	Grade A	4.5	Improving ↓	View
Milwaukie	OR	89.4	Grade A	4.9	Improving ↓	View
Lents	OR	89.4	Grade A	4.9	Improving ↓	View
Salmon Creek	WA	89.4	Grade A	4.5	Improving ↓	View
Orchards	WA	89.4	Grade A	4.5	Improving ↓	View
Hazel Dell	WA	89.4	Grade A	4.5	Improving ↓	View
Battle Ground	WA	89.4	Grade A	4.5	Improving ↓	View
Happy Valley	OR	89.4	Grade A	4.9	Improving ↓	View
Five Corners	WA	89.4	Grade A	4.5	Improving ↓	View
Troutdale	OR	89.4	Grade A	4.9	Improving ↓	View
Apache Junction	AZ	89.3	Grade A	4.5	Stable	View
Chicopee	MA	89.3	Grade A	5	Stable	View
Bangor	ME	89.3	Grade A	4.9	Worsening ↑	View
Lewiston	ME	89.3	Grade A	4.2	Improving ↓	View
Tualatin	OR	89.3	Grade A	4.8	Improving ↓	View
Laramie	WY	89.3	Grade A	2	Improving ↓	View
San Tan Valley	AZ	89.3	Grade A	4.5	Stable	View
North Chicopee	MA	89.3	Grade A	5	Stable	View
Tigard	OR	89.3	Grade A	4.8	Improving ↓	View
Westfield	MA	89.3	Grade A	5	Stable	View
Holyoke	MA	89.3	Grade A	5	Stable	View
Amherst	MA	89.3	Grade A	5	Stable	View
Lake Oswego	OR	89.3	Grade A	4.8	Improving ↓	View
Oregon City	OR	89.3	Grade A	4.8	Improving ↓	View

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Find your place.Understand its air.