Westphalia, IA has a population of 130 and is the 26,168th largest city in the United States. The population density is 1,361 per sq mi which is 2392% higher than the Iowa average and 1403% higher than the national average. The median age in Westphalia is 49 which is approximately 29% higher than the Iowa average of 38. In Westphalia, 55% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 78% of Westphalia residents were born in Iowa, 22% were born out of state, 0% were born outside of the United States and 0% were foreign born.