ZIP Code 46321 is located in the county of Lake in the state of Indiana. 46321 ZIP Code is spread between the coordinates of +41.5498688 Latitude and -87.50159675 Longitude. 46321 ZIP Code is part of the 219 area code. There is 1 postal office in zip code 46321.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 46321. 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.