Selfridge is a city in Sioux County, North Dakota in the United States and on the Standing Rock Indian Reservation. Selfridge was founded in 1911. The population was 160 at the 2010 census. Sub-Divisions near this city include Chadwick, ND and Porcupine, North Dakota.
Selfridge is located at 46°02′31″N 100°55′29″W / 46.042028°N 100.924673°W / 46.042028; -100.924673.
According to the United States Census Bureau, the city has a total area of 0.3 square miles (0.7 km2), all of it land.