District 19 of the Texas Senate is a senatorial district that currently serves all of Crockett, Edwards, Frio, Kinney, Maverick, Real, Terrell, Uvalde, Val Verde, and Zavala counties, and portions of Atascosa , Bexar, Brewster, and Guadalupe counties in the U.S. state of Texas.

[1] The district is currently served by Democrat Roland Gutierrez.

District 19 is one of the largest legislative districts in the United States, containing all or part of 14 counties and covering more than 35,000 square miles and about 400 miles of the Texas-Mexico border.

Redistricting in 2010 led to District 19 losing several western counties and gaining several eastern ones.

[2] District 19 has a population of 800,501 with 566,604 that is at voting age from the 2010 census.