Williston is a city in and the county seat of Williams County, North Dakota, United States. The 2010 census gave its population as 14,716, and the Census Bureau gave the 2015 estimated population as 26,977, making Williston the sixth largest city in North Dakota. The North Dakota oil boom is largely responsible for the sharp increase in population.Williston's newspapers, both in print and online, are the daily Williston Herald and the weekly The Williston Trader. Sloulin Field International Airport is a public airport 3.2 km north of the business district. Williston is the home of Williston State College and the Miss North Dakota Scholarship Pageant.