Rollins is an unincorporated community and census-designated place (CDP) in Lake County, Montana, United States.

According to the United States Census Bureau, the Rollins CDP has a total area of 2.9 square miles (7.5 km2), all land.

The racial makeup of the CDP was 98.36% White, 0.55% Native American, and 1.09% from two or more races.

26.5% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.

About 7.5% of families and 7.2% of the population were below the poverty line, including none of those under the age of eighteen or sixty five or over.