Blackfoot is a city in Bingham County, Idaho, United States. The population was 10,419 at the 2000 census. The city is the county seat of Bingham County. Blackfoot is self-designated the "Potato Capital of the World", because it claims to have the largest potato industry in the world. It is home to the Idaho Potato Museum (a museum and gift shop that displays and explains the history of Idaho's potato industry), which is home to the world's largest baked potato and potato chip. Blackfoot is also home to the Eastern Idaho State Fair, which operates between Labor Day weekend and the following weekend.
Blackfoot is the principal city of the Blackfoot, Idaho Micropolitan Statistical Area, which includes Bingham County.
"Blackfoot" is a name applied to several places in the area, including a mountain range and a small river. The name can be traced back to the summer of 1818 when a group of trappers and traders from the Hudson's Bay Company passed through. Earlier, in 1812, there had been some wildfires, and people who walked through the burned areas had their moccasins blackened. Although there were no actual Blackfoot people in the area, the traders referred to the people they met in the area as the Indians with the black feet, or the "Blackfoot Crowd", because of the blackened footwear. They went on to call the nearby stream the Blackfoot River.