Sandy Oaks, TX has a population of 4,013 and is the 7,438th largest city in the United States. The population density is 1,683 per sq mi which is 1636% higher than the Texas average and 1757% higher than the national average. The median age in Sandy Oaks is 28 which is approximately 17% lower than the Texas average of 34. In Sandy Oaks, 48% of the population over 15 years of age are married, 54% speak English and 45% speak Spanish. 73% of Sandy Oaks residents were born in Texas, 16% were born out of state, 1% were born outside of the United States and 9% were foreign born.