Big Arm is located in Montana. Big Arm, Montana has population of 151. Big Arm is less family-centric than the surrounding county with 21% of the households with children.
The median household income in Big Arm, Montana is $57,232. The median household income for the surrounding county is $51,830 compared to the national median of $66,222. The median age of people living in Big Arm is 51.8 years.
The average high temperature in July is 82.16 degrees, with an average low temperature in January of 20.03 degrees. The annual precipitation is 15.02.
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