South Texas, Geographic region in southern Texas, United States.

South Texas is a region in the southern part of Texas, extending from San Antonio to the Rio Grande and covering flat plains and coastal stretches along the Gulf of Mexico. The landscape shows wide open spaces with low brush, occasional ranch properties, and small towns scattered along main transportation routes.

The area changed hands between Spanish and Mexican control several times before becoming part of Texas after 1848. Railroad lines reached the region in the late 19th century, bringing new settlers and larger scale cattle ranching and cotton farming.

The name reflects its position in the southern part of Texas, marking the transition toward the Mexican border. Families celebrate quinceañeras and traditional religious festivals in community halls and churches, while weekly markets offer freshly prepared tamales and barbacoa.

Visitors should not underestimate distances between towns, as drives can take several hours. Sun protection and plenty of drinking water are advisable year-round due to the hot and dry climate.

Padre Island lies offshore and forms a natural barrier stretching more than 110 miles (180 kilometers). In some spots, you can see dolphins in the coastal waters in the morning and watch deer on the nearby plains at the same time.