Mc Allister, MT is a city located in Madison County, Montana and has a land area of 155.80 square miles (403.52 km2). The water area for the city is 6.24 square miles or 16.16 km2. There is one unique zip code in Mc Allister, Montana and it is 59740. The area code(s) for Mc Allister is 406.
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