Hillsboro Beach, FL has a population of 1,467 and is the 12,821st largest city in the United States. The population density is 4,011 per sq mi which is 1266% higher than the Florida average and 4328% higher than the national average. The median age in Hillsboro Beach is 67 which is approximately 61% higher than the Florida average of 42. In Hillsboro Beach, 74% of the population over 15 years of age are married, 84% speak English and 4% speak Spanish. 6% of Hillsboro Beach residents were born in Florida, 78% were born out of state, 0% were born outside of the United States and 16% were foreign born.