Melbourne Beach, FL has a population of 3,189 and is the 8,500th largest city in the United States. The population density is 3,250 per sq mi which is 1007% higher than the Florida average and 3487% higher than the national average. The median age in Melbourne Beach is 48 which is approximately 15% higher than the Florida average of 42. In Melbourne Beach, 66% of the population over 15 years of age are married, 90% speak English and 6% speak Spanish. 27% of Melbourne Beach residents were born in Florida, 59% were born out of state, 2% were born outside of the United States and 12% were foreign born.