Texas Congressional District 23 includes parts of Bexar County and extends through West Texas toward the El Paso area. Census district profiles provide the official geographic and demographic context for the district, including the counties and places it covers.

The official DistrictViewer map for Texas Congressional District 23 (Plan C2333) shows the district extending from the western side of the San Antonio area (including parts of Bexar and Medina counties) southwestward and westward along the Rio Grande and the Texas–Mexico border, then northward into parts of El Paso County. The mapped boundary closely follows a long portion of Texas’s international border with Mexico before turning north near El Paso, confirming that TX-23 runs along much of the border between the San Antonio region and the El Paso area.

Official federal district records and apportionment materials identify Texas’s 23rd Congressional District as a congressional district in the U.S. House and provide the legal basis for its current configuration. The district is defined by state redistricting maps rather than informal regional descriptions.

Reuters describes Texas’s 23rd Congressional District as a large border district extending from the San Antonio area toward El Paso. The reporting places the district in the context of border politics and its long geographic span.

The House of Representatives directory identifies ZIP code 78872 as located in the 23rd Congressional district of Texas. This ZIP code covers a community along the U.S.-Mexico border, illustrating that TX-23 includes border areas extending westward from the San Antonio region toward El Paso.

This official government statistical document lists Texas’s 23rd congressional district and provides county-level composition. TX-23 is shown to include border counties such as Maverick, Val Verde, Brewster, and Presidio, along with parts of El Paso County, and inland counties reaching into Bexar County near San Antonio. The tabular data demonstrates that the district contains numerous counties along the Rio Grande while also encompassing parts of the San Antonio area and the lower valley near El Paso.

The Dashboard identifies Texas’s 23rd congressional district as covering a large geographic area of southwestern Texas, including numerous rural counties and border communities. Based on Census-derived geography, the district is described as including segments of the Rio Grande border and parts of Bexar County in the San Antonio area, as well as portions of El Paso County in far West Texas. This confirms that TX-23 ties the San Antonio region to the El Paso area through a corridor that encompasses much of Texas’s international border with Mexico.

Texas's 23rd congressional district stretches across the southwestern portion of Texas.[2] The 23rd district runs along the majority of Texas's border with Mexico, north of the Rio Grande.[2] It stretches from western San Antonio to El Paso, encompassing numerous county seats and towns of regional economic importance.[2] For the 118th and successive Congresses (based on redistricting following the 2020 census), the district contains parts of El Paso County and Bexar County, tying the El Paso area to the San Antonio area along the border region.[2]

“Texas’ 23rd district stretches along the majority of Texas’ border with Mexico, from western San Antonio to just outside of El Paso.”[3] The memo notes that the district is predominantly rural with a handful of population centers, anchored in San Antonio, and that it spans roughly 520 miles.[3] It further explains that Texas’ 23rd district encompasses 26 whole counties and parts of three others, including parts of El Paso County (El Paso) and Bexar County (San Antonio), illustrating the long, border‑hugging path between the San Antonio area and the vicinity of El Paso.[3]

District 23 has roughly 800 miles of the U.S.-Mexico border, stretching from San Antonio to El Paso. The massive district runs along much of Texas’ border with Mexico, making it a key battleground in debates over border security and immigration.

Politico describes Texas’ 23rd congressional district as one that “spans one-third of the length of the entire U.S. border—an area so large that it straddles two tectonic plates.”[1] The accompanying map and photos show the district following the Rio Grande and U.S.–Mexico border for an extended distance, from areas southwest of San Antonio through Big Bend and toward the El Paso region.[1] Politico emphasizes that for residents of TX‑23, the U.S.–Mexico border is “personal,” because the district is literally drawn along this international boundary for hundreds of miles.[1]

The Texas Tribune’s directory entry for U.S. House District 23 includes a map that shows the district covering a large swath of southwest Texas, including parts of Bexar County near San Antonio and stretching west and southwest along the border region.[4] The mapped district follows the Rio Grande for long stretches, encompassing numerous border counties before reaching the far western part of the state near El Paso County.[4] This visual depiction confirms that Texas’s 23rd congressional district runs along much of Texas’s border with Mexico between the San Antonio area and the El Paso area.[4]

TxDOT’s map for Congressional District 23 (119th Congress) shows District 23 including Uvalde, Val Verde, Maverick, and other counties along the Rio Grande that form part of Texas’s border with Mexico.[7] The district begins in the western part of the San Antonio metropolitan area (including parts of Bexar and Medina counties) and extends southwest and west along the border before reaching portions of El Paso County near the city of El Paso.[7] The cartographic details illustrate that TX‑23 is a long, contiguous district that traces much of Texas’s international border from the San Antonio area toward El Paso.[7]

I-10 runs through Texas’ 23rd Congressional District, an expanse that stretches along the western side of the state from the border of New Mexico to the border of Mexico. Spanning nearly 58,000 square miles and two time zones, the district is more than twice the size of West Virginia. The sprawling district shares roughly 600 miles of border with Mexico, nearly one-third of the entire U.S.-Mexico border.

Ballotpedia describes Texas’ 23rd Congressional District as “covering a large area of southwest Texas” and notes that it includes parts of Bexar County (San Antonio) and parts of El Paso County (El Paso), along with numerous rural counties between them.[6] Its district map shows the seat stretching from near San Antonio, south and west along the U.S.–Mexico border, and then north to the El Paso area.[6] The entry highlights the district’s geographic size and its position along the border, indicating that it encompasses much of Texas’s border region between San Antonio and El Paso.[6]

The Congressional District Health Dashboard’s interactive map for Texas’s 23rd Congressional District (district code 4823) shows the district running from the western part of the San Antonio region through multiple border counties along the Rio Grande and extending to portions of El Paso County.[8] The displayed boundaries track a long segment of Texas’s border with Mexico, with health metrics plotted for communities located along this border corridor.[8] This geospatial representation corroborates that TX‑23 is drawn to follow much of the Texas–Mexico border between the vicinity of San Antonio and the area near El Paso.[8]

In this report, the anchor describes Texas’ 23rd Congressional District as "one of the most unique border battlegrounds across the country." The district "spans all the way from San Antonio to El Paso and has more than 800 miles of the border, even covering two time zones."

Following the 2020 redistricting cycle, Texas’s 23rd congressional district remained the principal border district in Texas, continuing to include a long stretch of counties adjacent to the Rio Grande while connecting the western San Antonio suburbs with parts of El Paso County. It is widely characterized in political reporting and academic analyses as the Texas district that covers the largest share of the Texas–Mexico border, with a narrow, elongated shape that traces the international boundary for hundreds of miles.