Fort Lauderdale, FL has a population of 175,153 and is the 141st largest city in the United States. The population density is 5,063 per sq mi which is 1624% higher than the Florida average and 5488% higher than the national average. The median age in Fort Lauderdale is 42 which is approximately 1% higher than the Florida average of 42. In Fort Lauderdale, 43% of the population over 15 years of age are married, 72% speak English and 15% speak Spanish. 35% of Fort Lauderdale residents were born in Florida, 39% were born out of state, 2% were born outside of the United States and 24% were foreign born.