Iowa has 99 counties. The largest is Polk County (493,378 people) and the smallest is Adams County (3,680). Median home values run from $106K in Pocahontas County to $385K in Dickinson County (Zillow ZHVI 2024). Effective property tax rates range from 0.98% in Lyon County to 1.89% in Decatur County (Tax Foundation 2023). Median household income is highest in Dallas County ($100K) and lowest in Appanoose County ($51K) (Census ACS 2022). Pick a county below for its full profile, or open the county map to filter by your own ranges.
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