Geography of Austin County
Austin County sits at roughly 29.89° N and 96.28° W in the Central Texas region of Texas, spanning 653 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 Bellville, and the county shares boundaries with 6 neighboring counties.
Population & demographics
With approximately 33,625 residents across 653 square miles, Austin County has a population density of about 51.5 people per square mile. Density here reflects a mix of small cities, suburbs, and rural land.
County seat: Bellville
Bellville serves as the seat of government for Austin 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
Austin County was established in 1836 and was named for Stephen F. Austin (1793–1836), known as the Father of Texas. It was carved from territory previously part of One of the original 23 counties.
Austin County, Texas — frequently asked questions
Quick answers about Austin 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 Austin County, Texas located?+
Austin County is located in the Central Texas region of Texas at approximately 29.887° N, 96.278° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48015. The interactive map on this page renders the official U.S. Census TIGER boundary for Austin County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Austin County in square miles?+
Austin County covers approximately 653 square miles of land in the Central Texas region — a compact county by Texas standards. By land area it ranks 224th 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 Austin County, Texas?+
Austin County has a population of approximately 33,625 residents. With 653 square miles of land, that works out to a population density of about 51.5 people per square mile, which is moderately populated for a Texas county. That makes Austin County the 89th most populous of the 254 counties in Texas.
What is the county seat of Austin County?+
Bellville is the county seat of Austin County, Texas, which was organized in 1836 and named for Stephen F. Austin (1793–1836), known as the Father of Texas. Austin County was originally carved out of One of the original 23 counties. County government offices, courthouses, and most public records for Austin County are located in Bellville.
Which Texas counties border Austin County?+
Austin County shares borders with Waller, Wharton, Fort Bend, Colorado, Fayette, and Washington counties. These 6 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 Central Texas region.
Where can I download or print a map of Austin County?+
A free, print-ready PDF map of Austin 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 Austin 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 Austin County, Texas?+
The full 5-digit U.S. Census FIPS code for Austin County is 48015, made up of Texas state code 48 and the 3-digit county code 015. 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.