Williamson County Texas Flag

Williamson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 609,017. Its county seat is Georgetown. The county is named for Robert McAlpin Williamson, a community leader and a veteran of the Battle of San Jacinto.
  • Country: United States
  • State: Texas
  • Founded: March 13, 1848
  • Named for: Robert McAlpin Williamson
  • Seat: Georgetown
  • Largest city: Round Rock
  • Congressional districts: 10th, 17th, 31st, 37th

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Data from: en.wikipedia.org