Buckeye, IA has a population of 98 and is the 26,978th largest city in the United States. The population density is 98 per sq mi which is 80% higher than the Iowa average and 9% higher than the national average. The median age in Buckeye is 35 which is approximately 9% lower than the Iowa average of 38. In Buckeye, 81% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 81% of Buckeye residents were born in Iowa, 19% were born out of state, 0% were born outside of the United States and 0% were foreign born.