Williston is a city in and the county seat of Williams County, North Dakota, United States. The 2020 census gave its population as 29,160, making Williston the sixth-most populous city in North Dakota

McKenzie County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 14,704, and was estimated to be 15,192 in 2025, The county seat and largest city is Watford Cit