Geography of Reagan County
Reagan County is classic frontier Texas: 1,175 square miles of open land with only about 3,166 residents, which makes it one of the most thinly settled counties in the state (222nd of 254 by density).
It lies in the West Texas region at about 31.37° N, 101.52° W and is 41st in size among Texas's 254 counties. Reagan County shares boundaries with 6 other Texas counties, and the closest major cities are Midland (about 55 miles away in a straight line) and San Angelo (about 64 miles).
West Texas is a land of long horizons: rolling plains, mesas and desert grassland where cotton farms, cattle ranches and the oilfields of the Permian Basin are the main sources of work. Distances between towns are measured in hours, not minutes.
For a broader view of how Reagan County fits within the state, download our free Texas map with counties and cities PDF — a printable, high-resolution reference showing all 254 Texas counties labeled with their county seats.
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
County government for Reagan County is based in Big Lake. The commissioners court, made up of a county judge and four precinct commissioners, meets here and sets the county budget, roads policy and tax rate. In a county this sparsely settled, Big Lake may be one of only a few incorporated towns.
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. Figures are sourced from the U.S. Census Bureau; answers are written and reviewed by the Texas County Map team.
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?+
Use the "Download PDF" button below the Reagan County map on this page to save a letter-size PDF of the county boundary, neighboring counties and incorporated places, drawn from U.S. Census Bureau 2023 boundary files. The "Official TxDOT road map" button downloads the Texas Department of Transportation county road mapbook for Reagan County. Both files are stored on this site and download directly. Our free Texas map with counties and cities PDF shows all 254 counties on one sheet.
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.