waterbycounty

Texas Water Quality

Drinking water data for all 254 counties.

Avg Water Score

97.3

State Grade

A

Counties with Data

254

of 254 total

All Texas Counties

CountyWater Score
Archer County100.0
Atascosa County100.0
Baylor County100.0
Bell County100.0
Bexar County100.0
Bowie County100.0
Brown County100.0
Collin County100.0
Crockett County100.0
Dallas County100.0
Denton County100.0
DeWitt County100.0
Dickens County100.0
Donley County100.0
El Paso County100.0
Ellis County100.0
Fannin County100.0
Fort Bend County100.0
Franklin County100.0
Galveston County100.0
Glasscock County100.0
Gonzales County100.0
Gray County100.0
Guadalupe County100.0
Harris County100.0
Hays County100.0
Hemphill County100.0
Hidalgo County100.0
Johnson County100.0
Kaufman County100.0
Kinney County100.0
Lavaca County100.0
Maverick County100.0
Moore County100.0
Nueces County100.0
Potter County100.0
Reagan County100.0
Roberts County100.0
Robertson County100.0
Rockwall County100.0
Schleicher County100.0
Sterling County100.0
Tarrant County100.0
Titus County100.0
Travis County100.0
Upshur County100.0
Ward County100.0
Wichita County100.0
Williamson County100.0
Wilson County100.0
Wood County100.0
Zavala County100.0
Anderson County99.9
Bailey County99.9
Bastrop County99.9
Brazos County99.9
Cameron County99.9
Camp County99.9
Colorado County99.9
Cooke County99.9
Crane County99.9
Deaf Smith County99.9
Floyd County99.9
Freestone County99.9
Gregg County99.9
Hansford County99.9
Hardin County99.9
Hopkins County99.9
Hunt County99.9
Jackson County99.9
Lamar County99.9
Lee County99.9
Leon County99.9
Liberty County99.9
Live Oak County99.9
Medina County99.9
Mitchell County99.9
Montgomery County99.9
Morris County99.9
Nacogdoches County99.9
Ochiltree County99.9
San Saba County99.9
Taylor County99.9
Waller County99.9
Wharton County99.9
Winkler County99.9
Young County99.9
Austin County99.8
Carson County99.8
Coleman County99.8
Culberson County99.8
Dimmit County99.8
Frio County99.8
Goliad County99.8
Hill County99.8
Hudspeth County99.8
Hutchinson County99.8
La Salle County99.8
Montague County99.8
Newton County99.8
Nolan County99.8
Parmer County99.8
Sherman County99.8
Stephens County99.8
Sutton County99.8
Swisher County99.8
Van Zandt County99.8
Webb County99.8
Armstrong County99.7
Ector County99.7
Grayson County99.7
Hood County99.7
Jeff Davis County99.7
Jefferson County99.7
Karnes County99.7
Menard County99.7
Oldham County99.7
Tom Green County99.7
Uvalde County99.7
Willacy County99.7
Bandera County99.6
Comal County99.6
Coryell County99.6
Llano County99.6
Madison County99.6
Navarro County99.6
Red River County99.6
San Patricio County99.6
Smith County99.6
Tyler County99.6
Bosque County99.5
Brazoria County99.5
Childress County99.5
Irion County99.5
Jack County99.5
Randall County99.5
Scurry County99.5
Starr County99.5
Val Verde County99.5
Hale County99.4
Henderson County99.4
McLennan County99.4
Terrell County99.4
Walker County99.4
Aransas County99.3
Brooks County99.3
Caldwell County99.3
Cochran County99.3
Crosby County99.3
Hartley County99.3
Kleberg County99.3
Lipscomb County99.3
Victoria County99.3
Cottle County99.2
Lamb County99.2
Milam County99.2
Parker County99.2
Reeves County99.2
Delta County99.1
Erath County99.1
Midland County99.1
Rusk County99.1
Washington County99.1
Clay County99.0
Harrison County99.0
Howard County99.0
Lampasas County99.0
Wheeler County99.0
Brewster County98.9
Collingsworth County98.9
Jim Wells County98.9
Wise County98.9
Rains County98.8
Houston County98.7
Kendall County98.7
Mills County98.7
Angelina County98.6
Bee County98.6
Burleson County98.6
Jones County98.6
Blanco County98.5
Cass County98.5
McMullen County98.5
Zapata County98.5
Dallam County98.4
Pecos County98.4
Chambers County98.3
Fayette County98.3
Gillespie County98.3
Jasper County98.3
Upton County98.3
Kenedy County98.2
Palo Pinto County98.2
Andrews County98.1
Somervell County98.1
Castro County98.0
Kerr County98.0
Lubbock County98.0
Motley County97.9
Orange County97.9
San Jacinto County97.7
Sabine County97.6
Grimes County97.5
Cherokee County97.4
Limestone County97.4
Calhoun County97.3
Eastland County97.3
Refugio County97.3
Loving County97.2
Falls County97.1
Hamilton County97.1
Marion County97.1
Haskell County97.0
Polk County97.0
Garza County96.9
Shackelford County96.9
Matagorda County96.7
Dawson County96.4
Jim Hogg County96.3
Panola County96.3
Wilbarger County96.2
Kimble County96.1
Shelby County96.1
Presidio County95.9
Terry County95.9
Fisher County95.8
Trinity County95.5
Hardeman County95.3
Runnels County94.9
Callahan County94.4
Comanche County94.4
Yoakum County93.8
Hockley County93.6
Gaines County93.5
Martin County93.4
Knox County93.2
Burnet County93.1
Duval County92.9
Mason County92.4
Coke County91.3
Real County91.0
Throckmorton County90.5
Kent County88.8
Stonewall County88.5
Hall County85.8
Concho County85.6
King County81.1
Lynn County78.2
San Augustine County70.4
Edwards County64.2
McCulloch County63.7
Briscoe County57.4
Foard County42.6
Borden County0.0

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Data Source

Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

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