Hillside Colony is a Hutterite community and census-designated place (CDP) in Toole County, Montana, United States. It is in the northwest corner of the county, 5 miles (8 km) west of Interstate 15 at Sweet Grass and 1 mile (1.6 km) south of the Canadian border.

Hillside Colony was first listed as a CDP prior to the 2020 census.

Demographics

Historical population

Census	Pop.	Note	%±
2020	0		—
U.S. Decennial Census