Darby is a town located in Ravalli County, in the state of Montana (MT), United States. Nestled in the Mountain division of the West region, it covers an area of 0.5 square miles (1.0 km²) and sits at an elevation of 3888 ft. With a population of approximately 710 residents, Darby offers a peaceful, rural atmosphere.
The town's population is composed of about 49.86% males and 50.14% females, and it has a population density of 339.62 people per square mile (517.23/km²). Darby lies at a latitude of 46.02 and a longitude of -114.18, operating in the UTC-7.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (8.5%), German (22.8%), and Scotch-Irish (4.2%) heritage. The town is identified by the ZIP code 59829.