GIS Map
RankingsTexasCleanest air

Counties with the Cleanest Air in Texas

The top 25 of 45 Texas counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Karnes County
7
2Wilson County
7
3Lubbock County
23
4Culberson County
26
5Potter County
29
6Polk County
33
7Rockwall County
34
8Victoria County
35
9Ector County
36
10Ellis County
36
11Parker County
36
12Brazoria County
37
13Gregg County
37
14Hunt County
37
15Maverick County
37
16Brazos County
39
17Johnson County
39
18Smith County
39
19Collin County
40
20Hood County
40
21Brewster County
43
22Kleberg County
43
23Randall County
43
24Atascosa County
44
25Galveston County
44

Source: EPA Air Quality Index annual summary (2024). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Cleanest Air in Texas”, https://gismap.land/rankings/texas/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).

More Texas rankings

Richest citiesMost expensive homesMost affordable homesHighest rentMost educatedHighest poverty rateMost densely populatedLargest by populationYoungestOldest by median ageFastest-growingFastest-shrinkingFastest-growing since 2010WarmestColdestSnowiestWettestDriestHighest hazard risk countiesLowest hazard risk countiesHighest expected lossesHighest radon potentialWorst air qualityWorst drought