Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Northumberland County Address Data
Businesses Addresses: 3,521
PO Box Addresses: 1,928
Residential Addresses: 54,719
Multi-Family Addresses: 2,304
Single Family Addresses: 52,285
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Map of Northumberland County, PA ZIP Codes With Actual (Default) City Names