Geography of Gregg County
Gregg County has grown into a suburban county, with about 126,095 people living across 274 square miles. Subdivisions, commuter corridors and remaining farmland sit side by side here.
It lies in the East Texas region at about 32.48° N, 94.82° W and is one of the 25 smallest counties in Texas (248th of 254 by area). Gregg County shares boundaries with 4 other Texas counties, and the closest major cities are Tyler (about 30 miles away in a straight line) and Texarkana (about 79 miles).
East Texas is the state's forested corner — the Piney Woods, red-clay hills, lakes and river bottoms that have more in common with the Deep South than with the open West. Timber, poultry, oil and gas, and growing retirement and lake communities shape its economy.
For a broader view of how Gregg 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 126,095 residents across 274 square miles, Gregg County has a population density of about 460.2 people per square mile. Density here reflects a mix of small cities, suburbs, and rural land.
County seat: Longview
County government for Gregg County is based in Longview. 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. As the county has grown, some offices have added annex locations closer to newer suburbs.
History & name origin
Gregg County was established in 1873 and was named for John Gregg (1828–1864), a Confederate general during the Civil War. It was carved from territory previously part of Upshur County.
Gregg County, Texas — frequently asked questions
Quick answers about Gregg 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 Gregg County, Texas located?+
Gregg County is located in the East Texas region of Texas at approximately 32.480° N, 94.817° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48183. The interactive map on this page renders the official U.S. Census TIGER boundary for Gregg County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Gregg County in square miles?+
Gregg County covers approximately 274 square miles of land in the East Texas region — a compact county by Texas standards. By land area it ranks 248th 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 Gregg County, Texas?+
Gregg County has a population of approximately 126,095 residents. With 274 square miles of land, that works out to a population density of about 460.2 people per square mile, which is densely populated for a Texas county. That makes Gregg County the 38th most populous of the 254 counties in Texas.
What is the county seat of Gregg County?+
Longview is the county seat of Gregg County, Texas, which was organized in 1873 and named for John Gregg (1828–1864), a Confederate general during the Civil War. Gregg County was originally carved out of Upshur County. County government offices, courthouses, and most public records for Gregg County are located in Longview.
Which Texas counties border Gregg County?+
Gregg County shares borders with Harrison, Smith, Rusk, and Upshur counties. These 4 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 Gregg County?+
Use the "Download PDF" button below the Gregg 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 Gregg 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 Gregg County, Texas?+
The full 5-digit U.S. Census FIPS code for Gregg County is 48183, made up of Texas state code 48 and the 3-digit county code 183. 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.