SmogRank / World / North America / United States / Texas
Most polluted cities in Texas, United States
35 measured cities, this year; 35 above the WHO annual guideline. Worst: Mission at 12.2 µg/m³, #710 in the world.
About 9.46K people in these 4 cities breathed unhealthy air on an average day so far this year.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
- 1Houston 8.32K
- 2Corpus Christi 1.14K
- 3Austin 0
- 4Fort Worth 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
Estimated: cities without a monitor
Texas cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Plano | ≈ 6 µg/m³ |
| Laredo | ≈ 8 µg/m³ |
| Garland | ≈ 7 µg/m³ |
| Irving | ≈ 7 µg/m³ |
| Cypress | ≈ 6 µg/m³ |
| Grand Prairie | ≈ 7 µg/m³ |
| McKinney | ≈ 6 µg/m³ |
| Frisco | ≈ 6 µg/m³ |
| Mesquite | ≈ 5 µg/m³ |
| Killeen | ≈ 4 µg/m³ |
| McAllen | ≈ 9 µg/m³ |
| Carrollton | ≈ 7 µg/m³ |
| Midland | ≈ 5 µg/m³ |
| Waco | ≈ 4 µg/m³ |
| Abilene | ≈ 4 µg/m³ |
| Round Rock | ≈ 3 µg/m³ |
| Beaumont | ≈ 5 µg/m³ |
| Richardson | ≈ 7 µg/m³ |
| Pearland | ≈ 7 µg/m³ |
| Wichita Falls | ≈ 4 µg/m³ |
| Lewisville | ≈ 6 µg/m³ |
| Tyler | ≈ 5 µg/m³ |
| San Angelo | ≈ 5 µg/m³ |
| League City | ≈ 7 µg/m³ |
| Allen | ≈ 6 µg/m³ |
| The Woodlands | ≈ 6 µg/m³ |
| Sugar Land | ≈ 6 µg/m³ |
| Longview | ≈ 6 µg/m³ |
| Bryan | ≈ 4 µg/m³ |
| Pharr | ≈ 10 µg/m³ |
| Baytown | ≈ 5 µg/m³ |
| Temple | ≈ 4 µg/m³ |
| Flower Mound | ≈ 6 µg/m³ |
| New Braunfels | ≈ 4 µg/m³ |
| North Richland Hills | ≈ 6 µg/m³ |
| Victoria | ≈ 4 µg/m³ |
| Harlingen | ≈ 8 µg/m³ |
| Celina | ≈ 6 µg/m³ |
| Mansfield | ≈ 5 µg/m³ |
| Georgetown | ≈ 3 µg/m³ |
Bad-air episodes in Texas
- Southern United States and Mexico, September 202615 September 2026, 1 day8 cities37 µg/m³peak, Port Isabel
- Southern United States and Mexico, April 202625 to 28 April 2026, 4 days29 cities39 µg/m³peak, Laredo
- Southern United States and Mexico, February 202619 to 20 February 2026, 2 days20 cities48 µg/m³peak, Laredo
- Central United States, January 202628 to 29 January 2026, 2 days10 cities37 µg/m³peak, Moore
- Texas and Louisiana, United States, December 2025 to January 202631 December 2025 to 1 January 2026, 2 days11 cities71 µg/m³peak, San Antonio
- Southern United States and Mexico, May 202515 to 20 May 2025, 6 days16 cities49 µg/m³peak, Ciudad Benito Juárez
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
Use this board
SmogRank, most polluted cities in Texas, United States, PM2.5, this year to 6 Oct 2026, 22:00 UTC, smogrank.com/us/region/texas?w=year.
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.
Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.