North Dakota Counties

North Dakota has 53 counties. The largest is Cass County (186,328 people) and the smallest is Slope County (837). Median home values run from $83K in McIntosh County to $376K in Dunn County (Zillow ZHVI 2024). Effective property tax rates range from 0.28% in Sioux County to 1.22% in Cass County (Tax Foundation 2023). Median household income is highest in Divide County ($96K) and lowest in Sioux County ($41K) (Census ACS 2022). Pick a county below for its full profile, or open the county map to filter by your own ranges.