Belfry is located in Carbon county Montana with a geographic area of 1.7 square miles. The total population in Belfry is 304 with 45.7% male and 54.3% female. Children under age 5 represent 2.0% of the population, under age 18 equal 13.2% of the population and over age 65 is 24.0% of the population. The median household income is $35,313, per capita income is $26,867. There are a total of 118 housing units with 78.8% owner occupied. Education includes 40.7% of residents that are high school graduates and 11.9% with a bachelor's degree or higher. The average temperature in Belfry in the summer is 69 degrees, and in the winter 27 degrees.
