Hawarden, IA has a population of 2,538 and is the 9,759th largest city in the United States. The population density is 914 per sq mi which is 1572% higher than the Iowa average and 908% higher than the national average. The median age in Hawarden is 43 which is approximately 13% higher than the Iowa average of 38. In Hawarden, 69% of the population over 15 years of age are married, 77% speak English and 22% speak Spanish. 57% of Hawarden residents were born in Iowa, 31% were born out of state, 0% were born outside of the United States and 12% were foreign born.