Ogema is a city in Becker County, Minnesota, United States. The population was 208 at the 2020 census. The name Ogema is deriveā¦Ogema is a city in Becker County, Minnesota, United States. The population was 208 at the 2020 census. The name Ogema is derived from the Ojibwe language ogimaa, meaning "chief". According to the United States Census Bureau, the city has a total area of 1.29 square miles, of which 1.23 square miles is land and 0.06 square miles is water.