Williamson County
Welcome to WilCo! Williamson County is centrally located in central Texas just north of the State Capitol in Austin. The county seat is in Georgetown, and its other major cities are Round Rock, Cedar Park, Leander, Taylor and Hutto. Williamson County is home to growing communities, thriving restaurants, diverse natural resources and a strong economy with businesses such as Dell, Apple and Samsung.
Growth
WilCo is the third fastest growing county in the state of Texas for the past 12 years with a growth rate of 162.9%. The population in 2023 is estimated to be around 700,000 residents. The median income of county residents is $94,705. The median home value is $414,869.
Historic Jail Campus 312 S. MAIN Located on 1.3 acres just blocks from the historic courthouse on the Georgetown Square, the Williamson County historic jail was built in 1888. The French Bastille structure is made of native limestone with walls eighteen inches thick. The 10,000 square-foot building has two stories. The ornamentation is restricted to quoins, stilted arched lintels and a crenellated parapet giving it the appearance of a castle. The jail was recorded as a Texas Historic Landmark in 1965. The building was entered into the National Register of Historic Places in 1977.
Historic Jail Campus 303 S. MAIN
307 S. MAIN
This building provides 2,024 square feet of office space on .16 acres.
This property is a .16-acre parking lot. It is under lease through February 8, 2026.
311 S. MAIN The Red House was built in 1988 and has 764 square feet of space. The building currently has a lease through January 31, 2027. The lessor has a right to sell and may terminate the lease with 180 days’ notice.