Page is a city in Cass County, North Dakota, United States. The population was 190 at the 2020 census. Page was founded in 1882. …Page is a city in Cass County, North Dakota, United States. The population was 190 at the 2020 census. Page was founded in 1882. According to the United States Census Bureau, the city has a total area of 1.004 square miles, all land.