SmogRank / World / United States / Washington / June 2024
Most polluted cities in Washington, United States, June 2024
45 cities in Washington, United States ranked by their average PM2.5 over the 30 days. Worst: White Center at 5.7 µg/m³, #2,072 of 2,517 cities in the world. Cleanest: Cheney at 0.9. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1White Center 0%
- 2Lynden 0%
- 3Tacoma 0%
- 4Renton 0%
- 5Seattle 0%
- 5Toppenish 0%
- 7Anacortes 0%
- 7Wenatchee 0%
- 9Bellingham 0%
- 9Spokane 0%
- 9Sunnyside 0%
- 12Auburn 0%
- 13Port Angeles 0%
- 13Spokane Valley 0%
- 15Ellensburg 0%
- 15Yakima 0%
- 17Port Townsend 0%
- 18Ridgefield 0%
- 19Moses Lake 0%
- 19Prosser 0%
- 21Bremerton 0%
- 21Oak Harbor 0%
- 21Parkland 0%
- 21Shoreline 0%
- 21Vancouver 0%
- 26Airway Heights 0%
- 27Chehalis 0%
- 27Lacey 0%
- 27Walla Walla 0%
- 30Ephrata 0%
- 31Mount Vernon 0%
- 32Aberdeen 0%
- 32Longview 0%
- 32Mead 0%
- 32Pullman 0%
- 36North Bend 0%
- 37Tri-Cities 0%
- 38Shelton 0%
- 39Quincy 0%
- 40Bellevue 0%
- 41Finley 0%
- 42Issaquah 0%
- 42Mill Plain 0%
- 44Tulalip 0%
- 45Cheney 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Washington, United States, PM2.5, June 2024, smogrank.com/us/region/washington/history/2024-06 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.