Williamson County Map, Texas, USA

Written and Fact-checked by | Last Updated: December 15, 2025, 14:50 ET

Map of Williamson County - Williamson County is a county located in the U.S. state of Texas. Williamson County Map showing cities, highways, important places and water bodies. Get Where is Williamson County located in the map, major cities in Williamson county, population, areas, and places of interest.

Map of Williamson County, Texas

Map of Williamson County, Texas

Williamson County is a county located in the U.S. state of Texas. It's county seat is Georgetown. As per 2020 census, the population of Williamson County is 643026 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 1,124 sq mi (2,911 km2). Williamson County was established on 1848.

Facts about Williamson County, Texas

CountryUnited States
StateTexas
RegionCentral Texas
County SeatGeorgetown
Named AfterRobert McAlpin Williamson (“Three-Legged Willie”), Texas judge and politician
Established1848
Organized1848
Coordinates30.6490° N, 97.6000° W
Total Area1,134 sq mi
Land Area1,118 sq mi
Water Area16 sq mi
Population (2020)422,679
Population RankOne of the fastest-growing counties in Texas
Major CityRound Rock
Main IndustriesTechnology, Healthcare, Education, Manufacturing, Retail
Major AirportAustin-Bergstrom International Airport (nearby)
Time ZoneCentral Time (UTC−06:00)
Known ForRapid suburban growth, Historic Georgetown Square, Tech corridor proximity
Websitehttps://www.wilco.org

Top Attractions in Williamson County, Texas

  • Inner Space Cavern – Underground caves and guided tours.
  • Georgetown Historic Downtown Square – Shops, dining, and charm.
  • Blue Hole Park – Scenic swimming and trails.
  • Lake Georgetown – Hiking, fishing, and boating.
  • Williamson County Courthouse – Iconic courthouse landmark.
  • Round Rock Express Stadium – Minor league baseball games.
  • San Gabriel Park – River trails and green space.
  • Old Settlers Park – Sports fields and recreation.
  • Berry Springs Park & Preserve – Nature trails and wildlife.
  • Downtown Round Rock – Shops, dining, and live music.

Cities & Towns in Williamson County, Texas

Round Rock, Georgetown, Leander, Cedar Park (partly), Hutto, Taylor, Liberty Hill, Florence, Thrall, Jarrell, Brushy Creek, Weir, Granger, Bartlett (partly), Leander Hills, Andice