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U.S. ZIP Code 51649
5-digit United States postal code #51649, Randolph, IA
ZIP code 51649 is located in the city (place name) Randolph, сounty Fremont in the state of Iowa. The population in ZIP code 51649 is 328 and the population density is 3.1. ZIP code 51649 refers to сounty Fremont having сounty FIPS 19071, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19071: 100%. In the area of the ZIP code 51649 valid time zone America/Chicago.