Rockwall County is a county in the U.S. state of Texas. At 149 square miles, Rockwall County has the smallest area of any Texas county. Per the 2020 Census, its population was 107,819. Its county seat is Rockwall. 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-For…
Rockwall County is a county in the U.S. state of Texas. At 149 square miles, Rockwall County has the smallest area of any Texas county. Per the 2020 Census, its population was 107,819. Its county seat is Rockwall. 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 top-25 fastest-growing counties in the U.S. in 2010. 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.
Country: United States
State: Texas
Founded: 1873
Named for: Rockwall, Texas, named in turn for its clastic dikes
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