Siesta Acres, TX has a population of 2,328 and is the 10,200th largest city in the United States. The population density is 5,698 per sq mi which is 5778% higher than the Texas average and 6189% higher than the national average. The median age in Siesta Acres is 29 which is approximately 16% lower than the Texas average of 34. In Siesta Acres, 67% of the population over 15 years of age are married, 4% speak English and 96% speak Spanish. 58% of Siesta Acres residents were born in Texas, 4% were born out of state, 9% were born outside of the United States and 29% were foreign born.