Ogema is a city in Becker County, Minnesota, United States. The population was 184 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.3 km²), of which, 1.2 square miles (3.2 km²) of it is land and 0.1 square miles (0.2 km²) of it (5.47%) is water.
As of the census of 2000, there were 143 people, 62 households, and 32 families residing in the city. The population density was 117.5 people per square mile (45.3/km²). There were 73 housing units at an average density of 60.0 per square mile (23.1/km²). The racial makeup of the city was 60.14% White, 37.06% Native American, 1.40% from other races, and 1.40% from two or more races. Hispanic or Latino of any race were 1.40% of the population.