Zephyrhills, FL has a population of 14,454 and is the 2,917th largest city in the United States. The population density is 1,539 per sq mi which is 275% higher than the Florida average and 1598% higher than the national average. The median age in Zephyrhills is 51 which is approximately 24% higher than the Florida average of 42. In Zephyrhills, 59% of the population over 15 years of age are married, 90% speak English and 7% speak Spanish. 32% of Zephyrhills residents were born in Florida, 59% were born out of state, 3% were born outside of the United States and 6% were foreign born.