Estero, FL has a population of 30,470 and is the 1,396th largest city in the United States. The population density is 1,247 per sq mi which is 325% higher than the Florida average and 1276% higher than the national average. The median age in Estero is 62 which is approximately 49% higher than the Florida average of 42. In Estero, 75% of the population over 15 years of age are married, 89% speak English and 5% speak Spanish. 13% of Estero residents were born in Florida, 73% were born out of state, 1% were born outside of the United States and 12% were foreign born.