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RadonVerdict
EPA Zone Data 2026

TX Radon Levels

View EPA radon zone classifications for every county in TX. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.

0
Zone 1
High Risk
39
Zone 2
Moderate
215
Zone 3
Low Risk
Anderson Zone 3
Andrews Zone 3
Angelina Zone 3
Aransas Zone 3
Archer Zone 3
Armstrong Zone 2
Atascosa Zone 3
Austin Zone 3
Bailey Zone 2
Bandera Zone 3
Bastrop Zone 3
Baylor Zone 3
Bee Zone 3
Bell Zone 3
Bexar Zone 3
Blanco Zone 3
Borden Zone 3
Bosque Zone 3
Bowie Zone 3
Brazoria Zone 3
Brazos Zone 3
Brewster Zone 2
Briscoe Zone 3
Brooks Zone 3
Brown Zone 3
Burleson Zone 3
Burnet Zone 3
Caldwell Zone 3
Calhoun Zone 3
Callahan Zone 3
Cameron Zone 3
Camp Zone 3
Carson Zone 2
Cass Zone 3
Castro Zone 2
Chambers Zone 3
Cherokee Zone 3
Childress Zone 3
Clay Zone 3
Cochran Zone 3
Coke Zone 3
Coleman Zone 3
Collin Zone 3
Collingsworth Zone 3
Colorado Zone 3
Comal Zone 3
Comanche Zone 3
Concho Zone 3
Cooke Zone 3
Coryell Zone 3
Cottle Zone 3
Crane Zone 3
Crockett Zone 3
Crosby Zone 2
Culberson Zone 2
Dallam Zone 2
Dallas Zone 3
Dawson Zone 3
DeWitt Zone 3
Deaf Smith Zone 2
Delta Zone 3
Denton Zone 3
Dickens Zone 3
Dimmit Zone 3
Donley Zone 2
Duval Zone 3
Eastland Zone 3
Ector Zone 3
Edwards Zone 3
El Paso Zone 3
Ellis Zone 3
Erath Zone 3
Falls Zone 3
Fannin Zone 3
Fayette Zone 3
Fisher Zone 3
Floyd Zone 2
Foard Zone 3
Fort Bend Zone 3
Franklin Zone 3
Freestone Zone 3
Frio Zone 3
Gaines Zone 3
Galveston Zone 3
Garza Zone 2
Gillespie Zone 3
Glasscock Zone 3
Goliad Zone 3
Gonzales Zone 3
Gray Zone 2
Grayson Zone 3
Gregg Zone 3
Grimes Zone 3
Guadalupe Zone 3
Hale Zone 2
Hall Zone 3
Hamilton Zone 3
Hansford Zone 2
Hardeman Zone 3
Hardin Zone 3
Harris Zone 3
Harrison Zone 3
Hartley Zone 2
Haskell Zone 3
Hays Zone 3
Hemphill Zone 2
Henderson Zone 3
Hidalgo Zone 3
Hill Zone 3
Hockley Zone 2
Hood Zone 3
Hopkins Zone 3
Houston Zone 3
Howard Zone 3
Hudspeth Zone 2
Hunt Zone 3
Hutchinson Zone 2
Irion Zone 3
Jack Zone 3
Jackson Zone 3
Jasper Zone 3
Jeff Davis Zone 2
Jefferson Zone 3
Jim Hogg Zone 3
Jim Wells Zone 3
Johnson Zone 3
Jones Zone 3
Karnes Zone 3
Kaufman Zone 3
Kendall Zone 3
Kenedy Zone 3
Kent Zone 3
Kerr Zone 3
Kimble Zone 3
King Zone 3
Kinney Zone 3
Kleberg Zone 3
Knox Zone 3
La Salle Zone 3
Lamar Zone 3
Lamb Zone 2
Lampasas Zone 3
Lavaca Zone 3
Lee Zone 3
Leon Zone 3
Liberty Zone 3
Limestone Zone 3
Lipscomb Zone 2
Live Oak Zone 3
Llano Zone 2
Loving Zone 3
Lubbock Zone 2
Lynn Zone 2
Madison Zone 3
Marion Zone 3
Martin Zone 3
Mason Zone 2
Matagorda Zone 3
Maverick Zone 3
McCulloch Zone 3
McLennan Zone 3
McMullen Zone 3
Medina Zone 3
Menard Zone 3
Midland Zone 3
Milam Zone 3
Mills Zone 3
Mitchell Zone 3
Montague Zone 3
Montgomery Zone 3
Moore Zone 2
Morris Zone 3
Motley Zone 3
Nacogdoches Zone 3
Navarro Zone 3
Newton Zone 3
Nolan Zone 3
Nueces Zone 3
Ochiltree Zone 2
Oldham Zone 2
Orange Zone 3
Palo Pinto Zone 3
Panola Zone 3
Parker Zone 3
Parmer Zone 2
Pecos Zone 3
Polk Zone 3
Potter Zone 2
Presidio Zone 2
Rains Zone 3
Randall Zone 2
Reagan Zone 3
Real Zone 3
Red River Zone 3
Reeves Zone 2
Refugio Zone 3
Roberts Zone 2
Robertson Zone 3
Rockwall Zone 3
Runnels Zone 3
Rusk Zone 3
Sabine Zone 3
San Augustine Zone 3
San Jacinto Zone 3
San Patricio Zone 3
San Saba Zone 3
Schleicher Zone 3
Scurry Zone 3
Shackelford Zone 3
Shelby Zone 3
Sherman Zone 2
Smith Zone 3
Somervell Zone 3
Starr Zone 3
Stephens Zone 3
Sterling Zone 3
Stonewall Zone 3
Sutton Zone 3
Swisher Zone 2
Tarrant Zone 3
Taylor Zone 3
Terrell Zone 2
Terry Zone 3
Throckmorton Zone 3
Titus Zone 3
Tom Green Zone 3
Travis Zone 3
Trinity Zone 3
Tyler Zone 3
Upshur Zone 3
Upton Zone 3
Uvalde Zone 3
Val Verde Zone 3
Van Zandt Zone 3
Victoria Zone 3
Walker Zone 3
Waller Zone 3
Ward Zone 3
Washington Zone 3
Webb Zone 3
Wharton Zone 3
Wheeler Zone 3
Wichita Zone 3
Wilbarger Zone 3
Willacy Zone 3
Williamson Zone 3
Wilson Zone 3
Winkler Zone 3
Wise Zone 3
Wood Zone 3
Yoakum Zone 3
Young Zone 3
Zapata Zone 3
Zavala Zone 3

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