Texas

Fifteen regions on county lines: Panhandle/South Plains, Rolling Plains, DFW Metroplex, North Central Texas, East Texas, Trans-Pecos/Permian, Hill Country, Austin area, San Antonio area, South Central Texas, Houston area, Upper Texas Coast, Coastal Bend, South Texas and Rio Grande Valley.

In the editor each region takes a level with one click. When one region needs more detail, split it into its counties and set them one by one; merge it back when they agree.

Regions in this starter map

• Panhandle/South Plains39 countiesAndrews County · Armstrong County · Bailey County · Briscoe County · Carson County · Castro County · Cochran County · Crosby County · Dallam County · Dawson County · Deaf Smith County · Floyd County · Gaines County · Glasscock County · Gray County · Hale County · Hansford County · Hartley County · Hemphill County · Hockley County · Howard County · Hutchinson County · Lamb County · Lipscomb County · Lubbock County · Lynn County · Martin County · Midland County · Moore County · Ochiltree County · Oldham County · Parmer County · Potter County · Randall County · Roberts County · Sherman County · Swisher County · Terry County · Yoakum County
• Rolling Plains28 countiesBaylor County · Borden County · Childress County · Coleman County · Collingsworth County · Cottle County · Dickens County · Donley County · Fisher County · Foard County · Garza County · Hall County · Hardeman County · Haskell County · Jones County · Kent County · King County · Knox County · Mitchell County · Motley County · Nolan County · Runnels County · Scurry County · Stonewall County · Taylor County · Wheeler County · Wichita County · Wilbarger County
• DFW Metroplex11 countiesDallas County · Tarrant County · Collin County · Denton County · Rockwall County · Kaufman County · Ellis County · Johnson County · Parker County · Wise County · Hunt County
• North Central Texas32 countiesArcher County · Bell County · Bosque County · Brown County · Callahan County · Clay County · Comanche County · Cooke County · Coryell County · Delta County · Eastland County · Erath County · Falls County · Fannin County · Grayson County · Hamilton County · Hill County · Hood County · Jack County · Lamar County · Limestone County · McLennan County · Milam County · Mills County · Montague County · Navarro County · Palo Pinto County · Shackelford County · Somervell County · Stephens County · Throckmorton County · Young County
• East Texas41 countiesAnderson County · Angelina County · Bowie County · Brazos County · Camp County · Cass County · Cherokee County · Franklin County · Freestone County · Gregg County · Grimes County · Hardin County · Harrison County · Henderson County · Hopkins County · Houston County · Jasper County · Leon County · Madison County · Marion County · Morris County · Nacogdoches County · Newton County · Panola County · Polk County · Rains County · Red River County · Robertson County · Rusk County · Sabine County · San Augustine County · San Jacinto County · Shelby County · Smith County · Titus County · Trinity County · Tyler County · Upshur County · Van Zandt County · Walker County · Wood County
• Trans-Pecos/Permian14 countiesBrewster County · Crane County · Culberson County · Ector County · El Paso County · Hudspeth County · Jeff Davis County · Loving County · Pecos County · Presidio County · Reeves County · Terrell County · Ward County · Winkler County
• Hill Country26 countiesBlanco County · Burnet County · Coke County · Concho County · Crockett County · Edwards County · Gillespie County · Irion County · Kerr County · Kimble County · Kinney County · Lampasas County · Llano County · McCulloch County · Mason County · Menard County · Reagan County · Real County · San Saba County · Schleicher County · Sterling County · Sutton County · Tom Green County · Upton County · Uvalde County · Val Verde County
• Austin area5 countiesTravis County · Williamson County · Hays County · Bastrop County · Caldwell County
• San Antonio area8 countiesBexar County · Comal County · Guadalupe County · Medina County · Wilson County · Atascosa County · Kendall County · Bandera County
• South Central Texas10 countiesAustin County · Burleson County · Colorado County · DeWitt County · Fayette County · Gonzales County · Karnes County · Lavaca County · Lee County · Washington County
• Houston area8 countiesHarris County · Fort Bend County · Montgomery County · Brazoria County · Galveston County · Waller County · Liberty County · Chambers County
• Upper Texas Coast5 countiesJackson County · Jefferson County · Matagorda County · Orange County · Wharton County
• Coastal Bend10 countiesNueces County · San Patricio County · Aransas County · Kleberg County · Jim Wells County · Refugio County · Bee County · Calhoun County · Victoria County · Goliad County
• South Texas14 countiesBrooks County · Dimmit County · Duval County · Frio County · Jim Hogg County · Kenedy County · La Salle County · Live Oak County · McMullen County · Maverick County · Starr County · Webb County · Zapata County · Zavala County
• Rio Grande Valley3 countiesCameron County · Hidalgo County · Willacy County

County lines from the Census Bureau, coastline from Natural Earth.