Demographics & People — Marshallton CDP (Northumberland County), Pennsylvania

Population Overview

Population (Census)	1,234
Estimated 2026	~1,100
Median Age	47.8
Total Households	564
Family Households	297
Average Household Size	2.19
Diversity Index	N/A (N/A)

Race & Ethnicity

White	1,230
Black or African American	4
Asian	0
Hispanic or Latino	0

Heritage & Ancestry

Group	Count
Polish	298
Unclassified or not reported	291
German	225
Italian	166
English	142
Slovak	121
Irish	110
Dutch	89
Arab	34
Lebanese	34

Language

English Only	1,196
Spanish	12
Population 5+	1,208

Veterans

Veterans	104
Population 18+	1,074

Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marshallton CDP (Northumberland County), Pennsylvania.