Geography of Delta County
Delta County sits at roughly 33.39° N and 95.67° W in the East Texas region of Texas, spanning 277 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 Cooper, and the county shares boundaries with 6 neighboring counties.
Population & demographics
With approximately 5,549 residents across 277 square miles, Delta County has a population density of about 20.0 people per square mile. Like much of West and South Texas, the county is sparsely populated, with wide-open country between settlements.
County seat: Cooper
Cooper serves as the seat of government for Delta 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
Delta County was established in 1870 and was named for Its triangular shape, much like the Greek letter Delta. It was carved from territory previously part of Hopkins County and Lamar County.
Delta County, Texas — frequently asked questions
Quick answers about Delta 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 Delta County, Texas located?+
Delta County is located in the East Texas region of Texas at approximately 33.386° N, 95.672° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48119. The interactive map on this page renders the official U.S. Census TIGER boundary for Delta County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Delta County in square miles?+
Delta County covers approximately 277 square miles of land in the East Texas region — a compact county by Texas standards. By land area it ranks 247th 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 Delta County, Texas?+
Delta County has a population of approximately 5,549 residents. With 277 square miles of land, that works out to a population density of about 20.0 people per square mile, which is rural for a Texas county. That makes Delta County the 194th most populous of the 254 counties in Texas.
What is the county seat of Delta County?+
Cooper is the county seat of Delta County, Texas, which was organized in 1870 and named for Its triangular shape, much like the Greek letter Delta. Delta County was originally carved out of Hopkins County and Lamar County. County government offices, courthouses, and most public records for Delta County are located in Cooper.
Which Texas counties border Delta County?+
Delta County shares borders with Hopkins, Lamar, Hunt, Red River, Fannin, and Franklin 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 East Texas region.
Where can I download or print a map of Delta County?+
A free, print-ready PDF map of Delta 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 Delta 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 Delta County, Texas?+
The full 5-digit U.S. Census FIPS code for Delta County is 48119, made up of Texas state code 48 and the 3-digit county code 119. 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.