Air Quality Rankings for Texas 2026

Texas has 42 cities with EPA air quality data. Potter, Texas has the cleanest air with a 5-year average AQI of 28. El Paso, Texas has the highest AQI at 60.

#	City	5yr Avg AQI	Current AQI	Worst Pollutant	Trend	Grade
1	Potter, Texas	28	26	PM2.5	Stable	B
2	Lubbock, Texas	28	25	PM2.5	Improving	B
3	Victoria, Texas	31	31	Ozone	Stable	B
4	Polk, Texas	32	37	Ozone	Stable	B
5	Rockwall, Texas	33	34	Ozone	Improving	B
6	Gregg, Texas	34	35	Ozone	Stable	B
7	Fayette, Texas	34	34	PM2.5	Improving	B
8	Brazoria, Texas	34	36	Ozone	Stable	C
9	Hunt, Texas	35	37	Ozone	Stable	B
10	Maverick, Texas	35	34	PM2.5	Improving	B
11	Ector, Texas	36	33	PM2.5	Improving	B
12	Hood, Texas	36	39	Ozone	Stable	C
13	Smith, Texas	36	38	Ozone	Worsening	C
14	Culberson, Texas	37	20	PM2.5	Worsening	C
15	Parker, Texas	37	39	Ozone	Stable	C
16	Johnson, Texas	38	38	Ozone	Stable	C
17	Collin, Texas	39	41	Ozone	Worsening	C
18	Ellis, Texas	41	36	PM2.5	Improving	B
19	Brewster, Texas	42	43	Ozone	Stable	C
20	Randall, Texas	43	44	Ozone	Stable	C
21	Kaufman, Texas	43	46	PM2.5	Stable	C
22	Navarro, Texas	43	46	PM2.5	Stable	B
23	McLennan, Texas	43	52	Ozone	Worsening	C
24	Orange, Texas	44	46	PM2.5	Stable	C
25	Bell, Texas	45	44	Ozone	Worsening	C
26	Kleberg, Texas	45	44	PM2.5	Worsening	C
27	Galveston, Texas	45	51	Ozone	Worsening	C
28	Denton, Texas	46	49	Ozone	Stable	C
29	Harrison, Texas	46	47	PM2.5	Worsening	C
30	Webb, Texas	47	44	PM2.5	Improving	B
31	Nueces, Texas	47	48	PM2.5	Stable	C
32	Hidalgo, Texas	48	44	PM2.5	Stable	C
33	Montgomery, Texas	48	53	PM2.5	Stable	C
34	Jefferson, Texas	48	54	PM2.5	Stable	C
35	Dallas, Texas	50	55	PM2.5	Stable	C
36	Bowie, Texas	51	53	PM2.5	Stable	C
37	Cameron, Texas	52	54	PM2.5	Worsening	C
38	Travis, Texas	52	54	PM2.5	Worsening	C
39	Tarrant, Texas	53	57	PM2.5	Worsening	D
40	Bexar, Texas	54	52	PM2.5	Stable	C
41	Harris, Texas	59	64	PM2.5	Worsening	D
42	El Paso, Texas	60	64	PM2.5	Worsening	D

Air quality data for Texas is sourced from the EPA Air Quality System (AQS), which monitors outdoor air quality at thousands of stations nationwide.
— EPA Air Quality System

Frequently Asked Questions

Potter, Texas has the best air quality in Texas with a 5-year average AQI of 28 and a grade of B.

Texas has 42 cities with EPA air quality monitoring data in our database, covering multiple years of AQI measurements.

The Air Quality Index (AQI) measures five major pollutants: ground-level ozone, particulate matter (PM2.5 and PM10), carbon monoxide, sulfur dioxide, and nitrogen dioxide. Lower AQI values indicate cleaner air — 0-50 is "Good," while 150+ is "Unhealthy."

Sources: EPA Air Quality System (AQS)

Cities ranked by 5-year average AQI (lower is better). Grades factor in average AQI, trend direction, unhealthy days, and dominant pollutant.

Cleanest Cities Nationwide →All Air Quality in Texas →