Rockwall County, Texas
Updated · Data: U.S. Census Bureau
Rockwall County, Texas has its county seat in Rockwall and FIPS code 48397. About 116,931 people live here, the 39th most populated of the 254 Texas counties.
| County seat | Rockwall |
|---|---|
| FIPS code | 48397 (Texas 48 + county 397) · all Texas FIPS codes |
| Population | 116,931 (39th of 254) |
| Land area | 127.2 sq mi (254th largest; + 21.7 sq mi water) |
| People per sq mi | 919.3 |
| Time zone | Central time (America/Chicago) |
| Median home value | $386,000 |
| Median property tax paid | $6,341 a year (about 1.64% of the median home value: our calculation, not an official rate) |
| Official website | www.rockwallcountytexas.com |
What counties border Rockwall County?
Rockwall County shares a border with 4 counties:
What cities and towns are in Rockwall County?
7 places with 1,000+ people have residents here; together they hold about 90% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| Rowlett | 64,139 | 12.2% (also in other counties) |
| Wylie | 58,991 | 2.2% (also in other counties) |
| Rockwall | 49,605 | 100.0% |
| Fate | 20,757 | 100.0% |
| Royse City | 17,357 | 67.4% (also in other counties) |
| Heath | 10,218 | 99.5% (also in other counties) |
| McLendon-Chisholm | 4,121 | 100.0% |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in Rockwall County?
7 ZIP code areas with residents touch Rockwall County; the ones marked * cross into another county.
Check an exact address with the address lookup, look up a ZIP code, or see how to confirm your county with official records.
Sources: Census TIGER/Line 2024 (boundary, area, neighbors); ACS 2019-2023 5-year (population, home value, taxes paid); Wikidata, CC0 (seat, website); timezone-boundary-builder (time zone). Data as of November 1, 2026. Not affiliated with any government agency.
FAQ
Frequently asked questions
What is the county seat of Rockwall County, Texas?
What is the FIPS code for Rockwall County?
What counties border Rockwall County?
How many people live in Rockwall County?
What time zone is Rockwall County in?
What is the largest city in Rockwall County?
Free · No signup · Private
Find your county now
Use your location, a city or a ZIP code. The check runs on your device; your location is never sent or stored.