Geography of Bexar County
Bexar County sits at roughly 29.45° N and 98.52° W in the South Texas region of Texas, spanning 1,247 square miles of terrain that includes the landscape characteristic of the area — from open ranchland and farmland to small-town main streets. The county's centroid is near San Antonio, and the county shares boundaries with 7 neighboring counties.
Population & demographics
With approximately 2,160,088 residents across 1,247 square miles, Bexar County has a population density of about 1732.2 people per square mile. It ranks among the more densely populated counties in Texas — a clear sign of metropolitan urbanization.
County seat: San Antonio
San Antonio serves as the seat of government for Bexar County. The county courthouse, commissioners court, district clerk, and primary public records are located here. As with all 254 Texas counties, the county seat is the anchor of civic life and the principal address for elections, permits, and court filings.
History & name origin
Bexar County was established in 1836 and was named for San Antonio de Béxar, the major presidio in Mexican Texas, named in turn for the San Antonio River and the Spanish viceroy's family, who were Dukes of Béjar in Spain. It was carved from territory previously part of One of the original 23 counties.
Bexar County, Texas — frequently asked questions
Quick answers about Bexar County geography, population, county seat, neighboring counties, and how to use the maps on this page. Every answer is generated from the official U.S. Census data backing this site.
Where is Bexar County, Texas located?+
Bexar County is located in the South Texas region of Texas at approximately 29.449° N, 98.520° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48029. The interactive map on this page renders the official U.S. Census TIGER boundary for Bexar County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Bexar County in square miles?+
Bexar County covers approximately 1,247 square miles of land in the South Texas region — a mid-sized Texas county. By land area it ranks 36th out of 254 Texas counties. The full bounding box of the county is rendered to scale on the interactive map and matches the U.S. Census TIGER 2023 polygon.
What is the population of Bexar County, Texas?+
Bexar County has a population of approximately 2,160,088 residents. With 1,247 square miles of land, that works out to a population density of about 1732.2 people per square mile, which is highly urban for a Texas county. That makes Bexar County the 4th most populous of the 254 counties in Texas.
What is the county seat of Bexar County?+
San Antonio is the county seat of Bexar County, Texas, which was organized in 1836 and named for San Antonio de Béxar, the major presidio in Mexican Texas, named in turn for the San Antonio River and the Spanish viceroy's family, who were Dukes of Béjar in Spain. Bexar County was originally carved out of One of the original 23 counties. County government offices, courthouses, and most public records for Bexar County are located in San Antonio.
Which Texas counties border Bexar County?+
Bexar County shares borders with Comal, Kendall, Medina, Atascosa, Bandera, Wilson, and Guadalupe counties. These 7 neighboring counties are highlighted on the schematic boundary map and linked at the bottom of this page so you can quickly compare population, area, and county seats across the South Texas region.
Where can I download or print a map of Bexar County?+
A free, print-ready PDF map of Bexar County is available from the "Download PDF" button at the top of this page. The printable layout uses authentic U.S. Census TIGER boundary geometry for Bexar County, includes a Texas locator inset, and is sized for standard 8.5" × 11" Letter paper. For interactive use, the live Leaflet map on this page supports OpenStreetMap, Esri satellite, Esri topographic, and Carto light basemaps with zoom, scale bar, and fullscreen.
What is the FIPS code for Bexar County, Texas?+
The full 5-digit U.S. Census FIPS code for Bexar County is 48029, made up of Texas state code 48 and the 3-digit county code 029. This is the same FIPS code used by the U.S. Census Bureau TIGER/Line files, the American Community Survey, and most federal datasets that key on county.