Harbor Bluffs, FL has a population of 2,931 and is the 8,925th largest city in the United States. The population density is 4,143 per sq mi which is 1311% higher than the Florida average and 4473% higher than the national average. The median age in Harbor Bluffs is 53 which is approximately 27% higher than the Florida average of 42. In Harbor Bluffs, 61% of the population over 15 years of age are married, 90% speak English and 5% speak Spanish. 31% of Harbor Bluffs residents were born in Florida, 60% were born out of state, 1% were born outside of the United States and 8% were foreign born.