ZIP Code 61104 is located in the county of Winnebago in the state of Illinois. 61104 ZIP Code is spread between the coordinates of +42.2551051 Latitude and -89.07617872 Longitude. 61104 ZIP Code is part of the 779, 815 area code. There are 0 postal offices in zip code 61104.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 61104. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.