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U.S. ZIP Code 50431
5-digit United States postal code #50431, Coulter, IA
ZIP code 50431 is located in the city (place name) Coulter, сounty Franklin in the state of Iowa. The population in ZIP code 50431 is 273 and the population density is 141.0. ZIP code 50431 refers to сounty Franklin having сounty FIPS 19069, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19069: 100%. In the area of the ZIP code 50431 valid time zone America/Chicago.