Grand Forks County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 73,170, and was estimated to be 74,501 in 2025, making it the third-most populous county in North Dakota. The county seat and the largest city is Grand Forks.
- Country
- United States
- Inception
- 1873
- Website
- http://www.gfcounty.nd.gov
