Elmendorf, TX has a population of 1,596 and is the 12,346th largest city in the United States. The population density is 317 per sq mi which is 227% higher than the Texas average and 250% higher than the national average. The median age in Elmendorf is 32 which is approximately 6% lower than the Texas average of 34. In Elmendorf, 53% of the population over 15 years of age are married, 56% speak English and 43% speak Spanish. 76% of Elmendorf residents were born in Texas, 14% were born out of state, 2% were born outside of the United States and 9% were foreign born.