Whittemore, IA has a population of 504 and is the 19,482nd largest city in the United States. The population density is 1,199 per sq mi which is 2095% higher than the Iowa average and 1223% higher than the national average. The median age in Whittemore is 45 which is approximately 19% higher than the Iowa average of 38. In Whittemore, 72% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 91% of Whittemore residents were born in Iowa, 9% were born out of state, 0% were born outside of the United States and 1% were foreign born.