ZIP Code 61423 is located in the county of Warren in the state of Illinois. 61423 ZIP Code is spread between the coordinates of +40.8909595 Latitude and -90.50258400 Longitude. 61423 ZIP Code is part of the 309 area code. There are 0 postal offices in zip code 61423.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 61423. 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.