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U.S. ZIP Code 75661
5-digit United States postal code #75661, Karnack, TX
ZIP code 75661 is located in the city (place name) Karnack, сounty Harrison in the state of Texas. The population in ZIP code 75661 is 2807 and the population density is 8.5. ZIP code 75661 refers to сounty Harrison having сounty FIPS 48203, the ratio of people from different counties in this ZIP code is as follows: all county weights - 48203: 100%. In the area of the ZIP code 75661 valid time zone America/Chicago.