ZIP Code 16121 is located in the county of Mercer in the state of Pennsylvania. 16121 ZIP Code is spread between the coordinates of +41.2115447 Latitude and -80.49320406 Longitude. 16121 ZIP Code is part of the 724 area code. There is 1 postal office in zip code 16121.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 16121. 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.