Zephyrhills South, FL has a population of 4,894 and is the 6,569th largest city in the United States. The population density is 2,500 per sq mi which is 751% higher than the Florida average and 2659% higher than the national average. The median age in Zephyrhills South is 61 which is approximately 47% higher than the Florida average of 42. In Zephyrhills South, 67% of the population over 15 years of age are married, 96% speak English and 3% speak Spanish. 25% of Zephyrhills South residents were born in Florida, 65% were born out of state, 1% were born outside of the United States and 9% were foreign born.