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U.S. ZIP Code 51355
5-digit United States postal code #51355, Okoboji, IA
ZIP code 51355 is located in the city (place name) Okoboji, сounty Dickinson in the state of Iowa. The population in ZIP code 51355 is 874 and the population density is 141.0. ZIP code 51355 refers to сounty Dickinson having сounty FIPS 19059, the ratio of people from different counties in this ZIP code is as follows: all county weights - 19059: 100%. In the area of the ZIP code 51355 valid time zone America/Chicago.