Williamson County is one of the fastest growing counties in the country! Located in Central Texas just north of the state capitol in Austin, Williamson County is gaining in its reputation as an exceptional place to live. Physically, the eastern part of the county is level black land soil and the western part rolling limestone hills, all drained by the San Gabriel River and tributaries. The county has a lively history including Comanche's, outlaws, Texas Rangers, the Chisholm Trail, cowboys, and sturdy pioneers.  Today, the county is a center for agribusiness, education, and high-tech industry.

Williamson County is blessed with a mild climate offering more than 300 sunny days each year, affordable living, good schools, clean air, scenic open spaces, and an abundance of recreational opportunities.  The county is well known for a very low crime rate and friendly, neighborly people.  Unlike most states, Texas has no state personal income tax.  All these reasons make Williamson County one of the most desirable places to live and work in the United States.

History: The county was organized in 1848 and named for Robert M. Williamson, pioneer leader and veteran of the Battle of San Jacinto. 

Form of Government: A political subdivision of the State of Texas

Williamson County Court House

Area: 1,135 square miles (1,124 sq. miles/land; 12 sq. miles/water)

Population: 590,551 according to Texas State Data Center

Quality of Life:

Health Ranking

Williamson County ranks as one of the healthiest counties in Texas. The 2016 County Health Rankings list Williamson County as the sixth healthiest county in Texas. Since the County Rankings were first introduced in 2010, Williamson County has been ranked #1 three times as the healthiest county in Texas, twice as the second, and twice as the third healthiest county. The County Health Rankings are conducted by the University of Wisconsin’s Population Health Institute and the Robert Wood Johnson Foundation. Williamson County is ranked 6th healthiest county in Texas among the 244 ranked counties in Texas. All counties are ranked using a variety of data factors, which measure the rate of education, housing, crime, employment, unhealthy behaviors, and exercise.