Rockwall County TX Government

Rockwall County, TX
At 149 square miles (390 sq km), Rockwall County has the smallest area of any Texas county. 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.