Estimate of Median Household Income for Polk County, IA was 77369.00000 $ in January of 2022, according to the United States Federal Reserve. Historically, Estimate of Median Household Income for Polk County, IA reached a record high of 77369.00000 in January of 2022 and a record low of 31061.00000 in January of 1989. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate of Median Household Income for Polk County, IA - last updated from the United States Federal Reserve on May of 2024.