Rollingwood, TX has a population of 1,642 and is the 12,170th largest city in the United States. The population density is 2,353 per sq mi which is 2327% higher than the Texas average and 2497% higher than the national average. The median age in Rollingwood is 44 which is approximately 29% higher than the Texas average of 34. In Rollingwood, 77% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 54% of Rollingwood residents were born in Texas, 39% were born out of state, 2% were born outside of the United States and 5% were foreign born.