Walcott, IA has a population of 1,450 and is the 12,895th largest city in the United States. The population density is 466 per sq mi which is 752% higher than the Iowa average and 414% higher than the national average. The median age in Walcott is 41 which is approximately 8% higher than the Iowa average of 38. In Walcott, 63% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 73% of Walcott residents were born in Iowa, 25% were born out of state, 0% were born outside of the United States and 2% were foreign born.