Choteau is a city in and the county seat of Teton County, Montana, United States. It lies along U.S. Route 89 about 20 miles (32 km) east of the Rocky Mountains, near Flathead National Forest, the Rocky Mountain Division of Lewis and Clark National Forest, and Glacier National Park. The population was 1,781 at the 2000 census. The Montana town is named for French fur-trapper and explorer Pierre Chouteau, Jr., who is also the namesake of Chouteau County, Montana (county seat: Fort Benton).
According to the United States Census Bureau, the city has a total area of 1.8 square miles (4.6 km²), all land. The Teton River runs nearby, although for some distance upstream of Choteau it is dry during much of the year.
As of the census of 2000, there were 1,781 people, 807 households, and 464 families residing in the city. The population density was 994.3 people per square mile (384.2/km²). There were 897 housing units at an average density of 500.8 per square mile (193.5/km²). The racial makeup of the city was 93.94% White, 0.06% African American, 2.92% Native American, 0.11% Asian, 0.22% from other races, and 2.75% from two or more races. Hispanic or Latino of any race were 1.18% of the population.