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U.S. ZIP Code 49405
5-digit United States postal code #49405, Custer, MI
ZIP code 49405 is located in the city (place name) Custer, сounty Mason in the state of Michigan. The population in ZIP code 49405 is 1559 and the population density is 8.7. ZIP code 49405 refers to сounty Mason having сounty FIPS 26105, the ratio of people from different counties in this ZIP code is as follows: all county weights - 26105: 100%. In the area of the ZIP code 49405 valid time zone America/Detroit.