St. Xavier, Montana

St. Xavier, Montana
St. Xavier in June 2014
Location of St. Xavier, Montana
Coordinates: 45°26′30″N 107°44′15″W / 45.44167°N 107.73750°W / 45.44167; -107.73750
CountryUnited States
StateMontana
CountyBig Horn
Area
 • Total
5.59 sq mi (14.49 km2)
 • Land5.59 sq mi (14.49 km2)
 • Water0 sq mi (0.00 km2)
Elevation
3,078 ft (938 m)
Population
 (2020)
 • Total
78
 • Density13.9/sq mi (5.38/km2)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
ZIP code
59075
Area code406
FIPS code30-65650
GNIS feature ID2409234

St. Xavier or Saint Xavior is a census-designated place (CDP) in Big Horn County, Montana, United States. It is located on the Crow Indian Reservation along the Bighorn River. The population was 78 at the 2020 census. It was 83 in 2010.

In 1887 Jesuit priests Urban Grassi and Peter Paul Prando built their permanent mission church for the Crow people. It was named for Saint Francis Xavier, cofounder of the Jesuits. The church is still in use. A mission school was also formed at the time, now called Pretty Eagle School and still associated with the Catholic church.

The town's economy is helped by fields irrigated by the Bighorn River. The nearby Bighorn Lake brings people for boating, fishing, and camping.