Geography of Gregg County
Gregg County sits at roughly 32.48° N and 94.82° W in the East Texas region of Texas, spanning 274 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 Longview, and the county shares boundaries with 4 neighboring counties.
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
Longview serves as the seat of government for Gregg 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
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. Every answer is generated from the official U.S. Census data backing this site.
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?+
A free, print-ready PDF map of Gregg 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 Gregg 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 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.