Memphis, FL has a population of 7,878 and is the 4,751st largest city in the United States. The population density is 2,416 per sq mi which is 723% higher than the Florida average and 2566% higher than the national average. The median age in Memphis is 36 which is approximately 13% lower than the Florida average of 42. In Memphis, 51% of the population over 15 years of age are married, 81% speak English and 18% speak Spanish. 57% of Memphis residents were born in Florida, 30% were born out of state, 2% were born outside of the United States and 11% were foreign born.