District 18 of the Texas Senate is a senatorial district that currently serves all of Aransas, Austin, Bastrop, Caldwell, Calhoun, Colorado, DeWitt, Fayette, Goliad, Gonzales, Jackson, Lavaca, Lee, Matagorda, Refugio, Victoria, Waller, Washington and Wharton counties and a western portion of Fort Bend County in the U.S. state of Texas.
The current Senator from District 18 is Republican Lois W. Kolkhorst, who won the seat in a special election in December 2014 after incumbent Republican Glenn Hegar successfully ran for and won Texas State Comptroller of Public Accounts.
Election history of District 18 from 1992.