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U.S. ZIP Code 40997
5-digit United States postal code #40997, Walker, KY
ZIP code 40997 is located in the city (place name) Walker, сounty Knox in the state of Kentucky. The population in ZIP code 40997 is 371 and the population density is 6.8. ZIP code 40997 refers to сounty Knox having сounty FIPS 21121, the ratio of people from different counties in this ZIP code is as follows: all county weights - 21121: 100%. In the area of the ZIP code 40997 valid time zone America/New_York.