Chattahoochee, FL has a population of 3,150 and is the 8,567th largest city in the United States. The population density is 573 per sq mi which is 95% higher than the Florida average and 533% higher than the national average. The median age in Chattahoochee is 40 which is approximately 4% lower than the Florida average of 42. In Chattahoochee, 31% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 68% of Chattahoochee residents were born in Florida, 28% were born out of state, 1% were born outside of the United States and 4% were foreign born.