Haines City, FL has a population of 22,138 and is the 1,965th largest city in the United States. The population density is 1,194 per sq mi which is 307% higher than the Florida average and 1217% higher than the national average. The median age in Haines City is 34 which is approximately 17% lower than the Florida average of 42. In Haines City, 53% of the population over 15 years of age are married, 54% speak English and 38% speak Spanish. 39% of Haines City residents were born in Florida, 31% were born out of state, 12% were born outside of the United States and 18% were foreign born.