Rockport Colony is a Hutterite community[3] and census-designated place (CDP) in Teton County, Montana, United States.

It is in the northern part of the county, 10 miles (16 km) south of Dupuyer and 25 miles (40 km) northwest of Choteau, the Teton county seat.

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

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