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About Rockwall County
Rockwall County is a county in the U.S. state of Texas. As of the 2020 census, its population was 107,819; it was estimated to be 140,738 in 2025. Its county seat is Rockwall and both the county and city are named for a wall-like subterranean rock formation that runs throughout the county. Rockwall County is part of the Dallas–Fort Worth–Arlington metropolitan statistical area. It was one of the 25 fastest-growing counties in the U.S. in 2009. Rockwall County is listed as the wealthiest county in Texas and the 17th-wealthiest in the United States by median household income. Cities in Rockwall County include Rockwall, Heath, Royse City, Fate, McClendon-Chisholm, Mobile City, and part of Rowlett.
Description adapted from Wikipedia, CC BY-SA 4.0.
At a glance
Rockwall County at a glance
- County seat
- Rockwall
- Population
- 107,819 (2020)
- Land area
- 149 sq mi
- Founded
- 1873
Communities
Largest communities in Rockwall County
- Garland246,018
- Rowlett62,535
- Wylie57,526
- Rockwall county seat47,251
- Fate17,958
History of Rockwall County
Rockwall County was formed in 1873 from portions of Kaufman County. It split off because access to the county seat of Kaufman was inconvenient. It was named for its county seat, Rockwall. Rockwall County also is home to the great rock wall, which is no longer in public view today.
Adapted from Wikipedia, CC BY-SA 4.0.
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Rockwall County election office →Official channels
Rockwall County election resources
Rockwall County election office · (972) 204-6200. Statewide tools and every Texas resource in one place: the Texas page at Scan Check Protect →
Part of Texas Voter Check
This is the Rockwall County page of Texas Voter Check, a project of True the Vote, pointing Texas voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Rockwall County or Texas Secretary of State publishes, they are right and this page is not.