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U.S. ZIP Code 51038
5-digit United States postal code #51038, Merrill, IA
ZIP code 51038 is located in the city (place name) Merrill, сounty Plymouth in the state of Iowa. The population in ZIP code 51038 is 1535 and the population density is 6.6. ZIP code 51038 refers to сounty Plymouth having сounty FIPS 19149, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19149: 100%. In the area of the ZIP code 51038 valid time zone America/Chicago.