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U.S. ZIP Code 54648
5-digit United States postal code #54648, Norwalk, WI
ZIP code 54648 is located in the city (place name) Norwalk, сounty Monroe in the state of Wisconsin. The population in ZIP code 54648 is 1737 and the population density is 9.3. ZIP code 54648 refers to сounty Monroe having сounty FIPS 55081, the ratio of people from different counties in this ZIP code is as follows: all county weights - 55081: 100%. In the area of the ZIP code 54648 valid time zone America/Chicago.