|Rockwall County Texas Cities/Towns - Fate, Heath, McLendon-Chisholm, Mobile City, Rockwall (County Seat), Rowlett, Royse City
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Rockwall County is a county located in the U.S. state of Texas. It is Texas's smallest county in land area. In 2016, its population was 93,978. Its seat is Rockwall.
The county was founded in 1873 because access to the county seat of Kaufman County, of which county the area was then a part, was inconvenient for the residents of what became Rockwall County. The county and city are named for a wall-like subterranean rock formation that runs throughout the county.