Rollingwood, CA has a population of 3,231 and is the 8,434th largest city in the United States. The population density is 19,045 per sq mi which is 8095% higher than the California average and 20920% higher than the national average. The median age in Rollingwood is 33 which is approximately 8% lower than the California average of 36. In Rollingwood, 49% of the population over 15 years of age are married, 24% speak English and 58% speak Spanish. 46% of Rollingwood residents were born in California, 7% were born out of state, 1% were born outside of the United States and 45% were foreign born.