Bithlo, FL has a population of 9,218 and is the 4,187th largest city in the United States. The population density is 860 per sq mi which is 193% higher than the Florida average and 849% higher than the national average. The median age in Bithlo is 33 which is approximately 21% lower than the Florida average of 42. In Bithlo, 46% of the population over 15 years of age are married, 76% speak English and 21% speak Spanish. 38% of Bithlo residents were born in Florida, 42% were born out of state, 11% were born outside of the United States and 10% were foreign born.