Rodeo, CA has a population of 9,798 and is the 3,999th largest city in the United States. The population density is 2,614 per sq mi which is 1025% higher than the California average and 2785% higher than the national average. The median age in Rodeo is 36 which is approximately 1% higher than the California average of 36. In Rodeo, 52% of the population over 15 years of age are married, 60% speak English and 20% speak Spanish. 62% of Rodeo residents were born in California, 10% were born out of state, 2% were born outside of the United States and 25% were foreign born.