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U.S. ZIP Code 48846
5-digit United States postal code #48846, Ionia, MI
ZIP code 48846 is located in the city (place name) Ionia, сounty Ionia in the state of Michigan. The population in ZIP code 48846 is 20269 and the population density is 72.2. ZIP code 48846 refers to сounty Ionia having сounty FIPS 26067, the ratio of people from different counties in this ZIP code is as follows: all county weights - 26067: 100%. In the area of the ZIP code 48846 valid time zone America/Detroit.