Miami Gardens, FL has a population of 112,514 and is the 251st largest city in the United States. The population density is 6,169 per sq mi which is 2001% higher than the Florida average and 6709% higher than the national average. The median age in Miami Gardens is 36 which is approximately 14% lower than the Florida average of 42. In Miami Gardens, 37% of the population over 15 years of age are married, 69% speak English and 21% speak Spanish. 55% of Miami Gardens residents were born in Florida, 11% were born out of state, 3% were born outside of the United States and 31% were foreign born.