Geography of Reagan County
Reagan County sits at roughly 31.37° N and 101.52° W in the West Texas region of Texas, spanning 1,175 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 Big Lake, and the county shares boundaries with 6 neighboring counties.
Population & demographics
With approximately 3,166 residents across 1,175 square miles, Reagan County has a population density of about 2.7 people per square mile. Like much of West and South Texas, the county is sparsely populated, with wide-open country between settlements.
County seat: Big Lake
Big Lake serves as the seat of government for Reagan 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
Reagan County was established in 1903 and was named for John H. Reagan (1818–1905), Confederate postmaster general, U.S. Congressman, and Governor of Texas. It was carved from territory previously part of Tom Green County.
Reagan County, Texas — frequently asked questions
Quick answers about Reagan 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 Reagan County, Texas located?+
Reagan County is located in the West Texas region of Texas at approximately 31.366° N, 101.523° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48383. The interactive map on this page renders the official U.S. Census TIGER boundary for Reagan County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Reagan County in square miles?+
Reagan County covers approximately 1,175 square miles of land in the West Texas region — a mid-sized Texas county. By land area it ranks 41st 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 Reagan County, Texas?+
Reagan County has a population of approximately 3,166 residents. With 1,175 square miles of land, that works out to a population density of about 2.7 people per square mile, which is sparsely populated for a Texas county. That makes Reagan County the 219th most populous of the 254 counties in Texas.
What is the county seat of Reagan County?+
Big Lake is the county seat of Reagan County, Texas, which was organized in 1903 and named for John H. Reagan (1818–1905), Confederate postmaster general, U.S. Congressman, and Governor of Texas. Reagan County was originally carved out of Tom Green County. County government offices, courthouses, and most public records for Reagan County are located in Big Lake.
Which Texas counties border Reagan County?+
Reagan County shares borders with Irion, Crockett, Glasscock, Sterling, Tom Green, and Upton 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 West Texas region.
Where can I download or print a map of Reagan County?+
A free, print-ready PDF map of Reagan 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 Reagan 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 Reagan County, Texas?+
The full 5-digit U.S. Census FIPS code for Reagan County is 48383, made up of Texas state code 48 and the 3-digit county code 383. 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.