The state of Texas has a total of 254 counties. Austin County is the oldest (founded in 1836), while Kenedy County is the youngest (established in 1921).

Harris County is the most populous, with a population of 4,652,980 people. Brewster County has the largest land area (16,040 km2), while Rockwall County has the smallest (386 km2).

Please find a list of all Texas counties sorted alphabetically below.

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