Cass County, North Dakota

county in North Dakota, United States

Cass County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 149,778, and was estimated to be 175,249 in 2016.[1] Cass County is the most populous county in North Dakota, accounting for nearly 23% of the state's population in 2016.[2][3]

Its county seat is Fargo.[4] It is the most populous city in the state. The county was organized on October 27, 1873.[5][6]


  1. "State & County QuickFacts". United States Census Bureau. Retrieved October 31, 2013.
  2. Based on 2016 Census. 175,249 (Cass pop.) / 757,952 (ND pop.) = 22.50%
  3. "Top 100 Counties by Growth, 2013". United States Census Bureau. Retrieved March 28, 2014.
  4. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
  5. "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Archived from the original on April 2, 2018. Retrieved February 2, 2015.
  6. "County History". North The State of North Dakota. Archived from the original on February 2, 2015. Retrieved February 2, 2015.