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Zip Code 17978 — Spring Glen, PA

17978 is a ZIP Code associated with Spring Glen, PA, located within Dauphin. The postal region supports an estimated population of 688 residents across Data Pending housing units, with a population density of 39.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.616500, -76.652190)

Data Metric	Local Statistic
Postal / Zip Code	17978
Primary City	Spring Glen
State / Province	PA
County	Dauphin
Total Population	688
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	39.2 people/sq mi
Timezone	America/New_York

How 17978 Compares

Metric	ZIP 17978	Dauphin County	PA State Average
Population	688	285,045	13,018,637
Median Income	Data Pending	N/A	N/A
Population Density	39.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 17098	Williamstown	2.2 mi	2,618	N/A
Zip 17968	Sacramento	2.2 mi	321	N/A
Zip 17097	Wiconisco	3.2 mi	721	N/A
Zip 17048	Lykens	4.0 mi	3,870	N/A
Zip 17030	Gratz	4.9 mi	541	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 →