There are a total of 53 counties in the state of North Dakota. Among them, Pembina County is the oldest one (established in 1867) while Grant County is the youngest (established in 1916). With population of 149,778, Cass County is the most populated. The biggest county by land area is McKenzie County (7,102 km2) and the smallest is Eddy County (1,637 km2). Below please see all North Dakota counties which are listed in alphabetical order.
- Adams County, ND
- Barnes County, ND
- Benson County, ND
- Billings County, ND
- Bottineau County, ND
- Bowman County, ND
- Burke County, ND
- Burleigh County, ND
- Cass County, ND
- Cavalier County, ND
- Dickey County, ND
- Divide County, ND
- Dunn County, ND
- Eddy County, ND
- Emmons County, ND
- Foster County, ND
- Golden Valley County, ND
- Grand Forks County, ND
- Grant County, ND
- Griggs County, ND
- Hettinger County, ND
- Kidder County, ND
- LaMoure County, ND
- Logan County, ND
- McHenry County, ND
- McIntosh County, ND
- McKenzie County, ND
- McLean County, ND
- Mercer County, ND
- Morton County, ND
- Mountrail County, ND
- Nelson County, ND
- Oliver County, ND
- Pembina County, ND
- Pierce County, ND
- Ramsey County, ND
- Ransom County, ND
- Renville County, ND
- Richland County, ND
- Rolette County, ND
- Sargent County, ND
- Sheridan County, ND
- Sioux County, ND
- Slope County, ND
- Stark County, ND
- Steele County, ND
- Stutsman County, ND
- Towner County, ND
- Traill County, ND
- Walsh County, ND
- Ward County, ND
- Wells County, ND
- Williams County, ND