You are here
U.S. ZIP Code 59631
5-digit United States postal code #59631, Basin, MT
ZIP code 59631 is located in the city (place name) Basin, сounty Jefferson in the state of Montana. The population in ZIP code 59631 is 237 and the population density is 0.5. ZIP code 59631 refers to сounty Jefferson having сounty FIPS 30043, the ratio of people from different counties in this ZIP code is as follows: all county weights - 30043: 100%. In the area of the ZIP code 59631 valid time zone America/Denver.