Richmond Heights, FL has a population of 9,881 and is the 3,968th largest city in the United States. The population density is 6,199 per sq mi which is 2012% higher than the Florida average and 6743% higher than the national average. The median age in Richmond Heights is 39 which is approximately 6% lower than the Florida average of 42. In Richmond Heights, 40% of the population over 15 years of age are married, 68% speak English and 30% speak Spanish. 66% of Richmond Heights residents were born in Florida, 12% were born out of state, 0% were born outside of the United States and 22% were foreign born.