SmogRank / World / United States / Texas / September 2026
Most polluted cities in Texas, United States, September 2026
34 cities in Texas, United States ranked by their average PM2.5 over the 30 days. Worst: Dallas at 10.6 µg/m³, #592 of 2,949 cities in the world. Cleanest: Seabrook at 5.1. 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.
- 1Port Isabel 4%
- 2Dallas 0%
- 3Mission 0%
- 4Edinburg 0%
- 5Wells Branch 0%
- 6Odessa 0%
- 7Corpus Christi 0%
- 8Denton 0%
- 8Timberwood Park 0%
- 8Windcrest 0%
- 11Pasadena 0%
- 12Fort Worth 0%
- 12Texarkana 0%
- 14Highlands 0%
- 14San Antonio 0%
- 16Helotes 0%
- 17Austin 0%
- 17El Paso 0%
- 19Houston 0%
- 20Cedar Park 0%
- 21Conroe 0%
- 22Deer Park 0%
- 23College Station 0%
- 23Socorro 0%
- 25Belton 0%
- 25Corsicana 0%
- 25River Oaks 0%
- 28Missouri City 0%
- 29Amarillo 0%
- 30Mission Bend 0%
- 31Galveston 0%
- 31Lubbock 0%
- 33Fort Bliss 0%
- 34Seabrook 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 Texas, United States, PM2.5, September 2026, smogrank.com/us/region/texas/history/2026-09 (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.