Miami, FL has a population of 432,622 and is the 44th largest city in the United States. The population density is 12,022 per sq mi which is 3995% higher than the Florida average and 13169% higher than the national average. The median age in Miami is 40 which is approximately 5% lower than the Florida average of 42. In Miami, 41% of the population over 15 years of age are married, 23% speak English and 70% speak Spanish. 29% of Miami residents were born in Florida, 11% were born out of state, 3% were born outside of the United States and 58% were foreign born.