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U.S. ZIP Code 66842
5-digit United States postal code #66842, Cassoday, KS
ZIP code 66842 is located in the city (place name) Cassoday, сounty Butler in the state of Kansas. The population in ZIP code 66842 is 324 and the population density is 1.1. ZIP code 66842 refers to сounty Butler having сounty FIPS 20015, the ratio of people from different counties in this ZIP code is as follows: all county weights - 20015: 100%. In the area of the ZIP code 66842 valid time zone America/Chicago.