Geography of Rockwall County
Rockwall County sits at roughly 32.90° N and 96.41° W in the North Texas region of Texas, spanning 149 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 Rockwall, and the county shares boundaries with 4 neighboring counties.
Population & demographics
With approximately 140,738 residents across 149 square miles, Rockwall County has a population density of about 944.6 people per square mile. It ranks among the more densely populated counties in Texas — a clear sign of metropolitan urbanization.
County seat: Rockwall
Rockwall serves as the seat of government for Rockwall 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
Rockwall County was established in 1873 and was named for Its county seat, which was named for a submerged stone wall found by its initial settlers. It was carved from territory previously part of Kaufman County.
Rockwall County, Texas — frequently asked questions
Quick answers about Rockwall 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 Rockwall County, Texas located?+
Rockwall County is located in the North Texas region of Texas at approximately 32.898° N, 96.408° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48397. The interactive map on this page renders the official U.S. Census TIGER boundary for Rockwall County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Rockwall County in square miles?+
Rockwall County covers approximately 149 square miles of land in the North Texas region — a compact county by Texas standards. By land area it ranks 254th 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 Rockwall County, Texas?+
Rockwall County has a population of approximately 140,738 residents. With 149 square miles of land, that works out to a population density of about 944.6 people per square mile, which is densely populated for a Texas county. That makes Rockwall County the 36th most populous of the 254 counties in Texas.
What is the county seat of Rockwall County?+
Rockwall is the county seat of Rockwall County, Texas, which was organized in 1873 and named for Its county seat, which was named for a submerged stone wall found by its initial settlers. Rockwall County was originally carved out of Kaufman County. County government offices, courthouses, and most public records for Rockwall County are located in Rockwall.
Which Texas counties border Rockwall County?+
Rockwall County shares borders with Hunt, Dallas, Kaufman, and Collin 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 North Texas region.
Where can I download or print a map of Rockwall County?+
A free, print-ready PDF map of Rockwall 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 Rockwall 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 Rockwall County, Texas?+
The full 5-digit U.S. Census FIPS code for Rockwall County is 48397, made up of Texas state code 48 and the 3-digit county code 397. 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.