Siesta Shores is a census-designated place (CDP) in Zapata County, Texas, United States.

[16] As of the census[1] of 2000, there were 890 people, 292 households, and 244 families residing in the CDP.

The population density was 1,418.1 inhabitants per square mile (547.5/km2).

There were 292 households, out of which 42.5% had children under the age of 18 living with them, 69.5% were married couples living together, 11.3% had a female householder with no husband present, and 16.4% were non-families.

14.0% of all households were made up of individuals, and 5.8% had someone living alone who was 65 years of age or older.