Orange City, IA has a population of 6,153 and is the 5,666th largest city in the United States. The population density is 1,458 per sq mi which is 2568% higher than the Iowa average and 1509% higher than the national average. The median age in Orange City is 34 which is approximately 11% lower than the Iowa average of 38. In Orange City, 61% of the population over 15 years of age are married, 92% speak English and 5% speak Spanish. 63% of Orange City residents were born in Iowa, 29% were born out of state, 1% were born outside of the United States and 7% were foreign born.