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is a city in Griggs County, North Dakota in the United States. It is the county seat of Griggs County. The population was 1,053 at the 2000 census. Cooperstown was founded in 1882. It is the closest town to the Sibley Lake National Wildlife Refuge.
According to the United States Census Bureau, the city has a total area of 0.9 square miles (2.4 km²), all of it land.