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U.S. ZIP Code 59523
5-digit United States postal code #59523, Chinook, MT
ZIP code 59523 is located in the city (place name) Chinook, сounty Blaine in the state of Montana. The population in ZIP code 59523 is 2287 and the population density is 0.6. ZIP code 59523 refers to сounty Blaine having сounty FIPS 30005, the ratio of people from different counties in this ZIP code is as follows: all county weights - 30005: 100%. In the area of the ZIP code 59523 valid time zone America/Denver.