What county is Rockwall, TX in?
Updated · Data: U.S. Census Bureau
Rockwall, Texas is in Rockwall County. Rockwall mailing addresses (ZIP codes named Rockwall) also reach Collin County, so check your street.
Rockwall at a glance
How close is Rockwall to a county line?
The center of Rockwall (its Census internal point) is about 4.5 mi from the Collin County line. Homes near the edge of town can be much closer; if you live near a line, check your address and the lookup will tell you how far you are from it.
What ZIP codes are in Rockwall?
2 ZIP codes use the name Rockwall or are centered in it. Shares are of each ZIP's land; a ZIP named after a town can reach beyond its city limits.
| ZIP | Post office name | County (land share) |
|---|---|---|
| 75032 | Rockwall | Rockwall County |
| 75087 | Rockwall | Rockwall County 94%, Collin County 6% |
About Rockwall County
County seat: Rockwall. FIPS code 48397. Population 116,931. All Rockwall County facts.
Towns near Rockwall
- Fate: 3.8 mi away, Rockwall County
- Heath: 4.7 mi away, Rockwall County
- McLendon-Chisholm: 5.6 mi away, Rockwall County
- Rowlett: 6.4 mi away, Dallas County
- Lavon: 7.3 mi away, Collin County
- Royse City: 8.2 mi away, Rockwall County
Rockwall has about 49,605 people. It is an incorporated city or town.
Sources: ACS 2019-2023 5-year (residents by county, table B01003); Census TIGER/Line 2024 and Gazetteer 2024 (land, location); Census 2020 ZCTA file and GeoNames (ZIP codes). Data as of November 1, 2026. Not affiliated with any government agency.
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