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U.S. ZIP Code 51249
5-digit United States postal code #51249, Sibley, IA
ZIP code 51249 is located in the city (place name) Sibley, сounty Osceola in the state of Iowa. The population in ZIP code 51249 is 3593 and the population density is 11.1. ZIP code 51249 refers to сounty Osceola having сounty FIPS 19143, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19143: 100%. In the area of the ZIP code 51249 valid time zone America/Chicago.