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U.S. ZIP Code 41631
5-digit United States postal code #41631, Grethel, KY
ZIP code 41631 is located in the city (place name) Grethel, сounty Floyd in the state of Kentucky. The population in ZIP code 41631 is 1106 and the population density is 35.7. ZIP code 41631 refers to сounty Floyd having сounty FIPS 21071, the ratio of people from different counties in this ZIP code is as follows: all county weights - 21071: 100%. In the area of the ZIP code 41631 valid time zone America/New_York.