Rolling Hills, CA has a population of 1,760 and is the 11,781st largest city in the United States. The population density is 589 per sq mi which is 153% higher than the California average and 550% higher than the national average. The median age in Rolling Hills is 54 which is approximately 49% higher than the California average of 36. In Rolling Hills, 75% of the population over 15 years of age are married, 79% speak English and 3% speak Spanish. 52% of Rolling Hills residents were born in California, 28% were born out of state, 2% were born outside of the United States and 18% were foreign born.