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Zip Code 17857 — Northumberland, PA

17857 is a ZIP Code associated with Northumberland, PA, located within Northumberland. The postal region supports an estimated population of 7,671 residents across Data Pending housing units, with a population density of 111.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.927890, -76.767120)

Data Metric	Local Statistic
Postal / Zip Code	17857
Primary City	Northumberland
State / Province	PA
County	Northumberland
Total Population	7,671
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	111.1 people/sq mi
Timezone	America/New_York

How 17857 Compares

Metric	ZIP 17857	Northumberland County	PA State Average
Population	7,671	83,042	13,018,637
Median Income	Data Pending	N/A	N/A
Population Density	111.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 17865	Potts Grove	4.2 mi	24	N/A
Zip 17850	Montandon	5.5 mi	576	N/A
Zip 17847	Milton	5.8 mi	11,260	N/A
Zip 17876	Shamokin Dam	5.8 mi	1,827	N/A
Zip 17801	Sunbury	6.3 mi	16,429	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →