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U.S. ZIP Code 66603
5-digit United States postal code #66603, Topeka, KS
ZIP code 66603 is located in the city (place name) Topeka, сounty Shawnee in the state of Kansas. The population in ZIP code 66603 is 2001 and the population density is 894.8. ZIP code 66603 refers to сounty Shawnee having сounty FIPS 20177, the ratio of people from different counties in this ZIP code is as follows: all county weights - 20177: 100%. In the area of the ZIP code 66603 valid time zone America/Chicago.