Colrain is a town located in Franklin County, in the state of Massachusetts (MA), United States. Nestled in the New England division of the North-east region, it covers an area of 43.4 square miles (112.0 km²) and sits at an elevation of 633 ft. With a population of approximately 1,813 residents, Colrain offers a peaceful, rural atmosphere.
The town's population is composed of about 50.8% males and 49.2% females, and it has a population density of 41.77 people per square mile (16.13/km²). Colrain lies at a latitude of 42.67 and a longitude of -72.71, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (8.9%), followed by English (20.5%), German (11.3%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 01340.