Bay Harbor Islands, FL has a population of 5,885 and is the 5,823rd largest city in the United States. The population density is 14,847 per sq mi which is 4957% higher than the Florida average and 16288% higher than the national average. The median age in Bay Harbor Islands is 42 which is approximately 2% higher than the Florida average of 42. In Bay Harbor Islands, 49% of the population over 15 years of age are married, 50% speak English and 38% speak Spanish. 33% of Bay Harbor Islands residents were born in Florida, 23% were born out of state, 5% were born outside of the United States and 39% were foreign born.