Hialeah Gardens, FL has a population of 23,351 and is the 1,863rd largest city in the United States. The population density is 7,070 per sq mi which is 2308% higher than the Florida average and 7703% higher than the national average. The median age in Hialeah Gardens is 42 which is approximately 1% higher than the Florida average of 42. In Hialeah Gardens, 54% of the population over 15 years of age are married, 5% speak English and 94% speak Spanish. 24% of Hialeah Gardens residents were born in Florida, 3% were born out of state, 2% were born outside of the United States and 71% were foreign born.