Myrtle Grove, FL has a population of 16,547 and is the 2,581st largest city in the United States. The population density is 2,491 per sq mi which is 748% higher than the Florida average and 2649% higher than the national average. The median age in Myrtle Grove is 34 which is approximately 18% lower than the Florida average of 42. In Myrtle Grove, 45% of the population over 15 years of age are married, 88% speak English and 5% speak Spanish. 35% of Myrtle Grove residents were born in Florida, 55% were born out of state, 2% were born outside of the United States and 8% were foreign born.