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Oak Park, Pennsylvania ZIP Code - United States

The location Oak Park, PA has an unique ZIP Codes assigned (17857). Although this location name (Oak Park, PA) is set as NOT ACCEPTABLE (meaning it is an inadequate city name). So looking for the ZIP Code 17857 we have found out the following locations (for your mailing or form filling you should use an ACCEPTABLE or PRIMARY location name).

City Name ZIP Code ZIP Type Estimated Population
Northumberland, PA PRIMARY Status defition 17857 STANDARD 6.690
Northumberlnd, PA ACCEPTABLE Status defition 17857 STANDARD 6.690

Postal Zone of Oak Park, PA - USA

Oak Park, Pennsylvania ZIP Code - United States
ZIP Code Tabulation Areas (ZCTAs) for Oak Park, PA ZIP Code. A ZCTA is a generalized area representation of the american ZIP Code service area.

Oak Park, PA belongs to which county?

Oak Park, PA belongs to Northumberland county. Check the list of Northumberland county ZIP Code.

ZIP Code Pennsylvania

Check the list of Pennsylvania ZIP Code.

ZIP Code United States

If you want to restart your search by state, get back to US ZIP Code.

Status Definitions
  • PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
  • ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
  • IMPROPER/NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
  • UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.