Zip Code 17850 — Montandon, PA
17850 is a ZIP Code associated with Montandon, PA, located within Northumberland. 17850 ranks #16 out of 22 ZIP codes in Northumberland County by population (and #1299 out of 1,832 in PA). The area supports an estimated population of 576 residents across Data Pending housing units, with a population density of 493.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (40.967100, -76.858470)
| Data Metric | Local Statistic |
| Postal / Zip Code | 17850 |
| Primary City | Montandon |
| State / Province | PA |
| County | Northumberland |
| Total Population | 576 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 493.8 people/sq mi |
| Timezone | America/New_York |
How 17850 Compares
| Metric | ZIP 17850 | Northumberland County | PA State Average |
| Population | 576 | 83,042 (Total) | 13,018,637 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 493.8 /sq mi | -- | -- |
| County Pop Rank | #16 of 22 | -- | -- |
Nearby ZIP Codes
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 →