53021 is zip code located in Fredonia, Wisconsin. The population is 4,770, making 53021 the largest zipcode in Fredonia and the 7th largest in Ozaukee County.
There are 4 public schools in 53021 with an average Homefacts rating of B+. , and there are 11 registered sex offenders residing in the zip code 53021. Unemployment in 53021 is low.