Valparaiso, FL has a population of 5,084 and is the 6,393rd largest city in the United States. The population density is 429 per sq mi which is 46% higher than the Florida average and 374% higher than the national average. The median age in Valparaiso is 28 which is approximately 32% lower than the Florida average of 42. In Valparaiso, 48% of the population over 15 years of age are married, 93% speak English and 4% speak Spanish. 23% of Valparaiso residents were born in Florida, 67% were born out of state, 7% were born outside of the United States and 2% were foreign born.