Jensen Beach, FL has a population of 12,178 and is the 3,377th largest city in the United States. The population density is 1,750 per sq mi which is 496% higher than the Florida average and 1832% higher than the national average. The median age in Jensen Beach is 53 which is approximately 28% higher than the Florida average of 42. In Jensen Beach, 61% of the population over 15 years of age are married, 95% speak English and 2% speak Spanish. 28% of Jensen Beach residents were born in Florida, 67% were born out of state, 1% were born outside of the United States and 4% were foreign born.