There are 4 zip codes in Rockwall County, Texas. The most populated is 75087, located in Rockwall. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7508740,201Rockwall
7518938,261Royse City
7503236,514Rockwall
751320Fate

Zip Codes in Rockwall County, Texas by Population (2024)