SmogRank / World / United States / Washington / November 2024
Most polluted cities in Washington, United States, November 2024
42 cities in Washington, United States ranked by their average PM2.5 over the 30 days. Worst: Yakima at 10.9 µg/m³, #707 of 2,572 cities in the world. Cleanest: Tulalip at 1.4. 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.
- 1Toppenish 3%
- 2Mead 3%
- 3Spokane 3%
- 4Wenatchee 3%
- 5Yakima 0%
- 6Spokane Valley 0%
- 7Port Angeles 0%
- 8Renton 0%
- 9Sunnyside 0%
- 10Tacoma 0%
- 10White Center 0%
- 12Airway Heights 0%
- 13Auburn 0%
- 14Seattle 0%
- 15Ellensburg 0%
- 16Moses Lake 0%
- 17Shelton 0%
- 17Shoreline 0%
- 19Lynden 0%
- 20Ephrata 0%
- 20Parkland 0%
- 20Prosser 0%
- 20Vancouver 0%
- 24Longview 0%
- 25Walla Walla 0%
- 26Bellingham 0%
- 26Chehalis 0%
- 28Lacey 0%
- 28Picnic Point-North Lynnwood 0%
- 30Ridgefield 0%
- 31Anacortes 0%
- 31Port Townsend 0%
- 33Bremerton 0%
- 34Aberdeen 0%
- 35Pullman 0%
- 36Quincy 0%
- 37Bellevue 0%
- 37Tri-Cities 0%
- 39North Bend 0%
- 40Oak Harbor 0%
- 41Mount Vernon 0%
- 42Tulalip 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
All cities in the world, November 2024 · All cities in United States, November 2024 · Washington now
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SmogRank, most polluted cities in Washington, United States, PM2.5, November 2024, smogrank.com/us/region/washington/history/2024-11 (accessed 7 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.