Sun City Center, FL has a population of 21,345 and is the 2,037th largest city in the United States. The population density is 1,355 per sq mi which is 362% higher than the Florida average and 1396% higher than the national average. The median age in Sun City Center is 73 which is approximately 75% higher than the Florida average of 42. In Sun City Center, 82% of the population over 15 years of age are married, 92% speak English and 5% speak Spanish. 9% of Sun City Center residents were born in Florida, 82% were born out of state, 2% were born outside of the United States and 7% were foreign born.