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U.S. ZIP Code 50057
5-digit United States postal code #50057, Columbia, IA
ZIP code 50057 is located in the city (place name) Columbia, сounty Marion in the state of Iowa. The population in ZIP code 50057 is 238 and the population density is 4.6. ZIP code 50057 refers to сounty Marion having сounty FIPS 19125, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19125: 100%. In the area of the ZIP code 50057 valid time zone America/Chicago.