Northumberland County, Pennsylvania ZIP codes
23 ZIP codes are in Northumberland County, plus 6 that cross in from neighboring counties. It's part of the Sunbury, PA micro area.
- ZIP codes
- 23
- Population in these ZIPs
- 83,042
- Avg. median income
- $60,300population-weighted
- Cities & towns
- 23
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Northumberland County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 17017 | Dalmatia | 1,509 | $82,396 | $220,300 |
| 17730 | Dewart | 11 | — | — |
| 17749 | Mc Ewensville | 234 | $74,500 | $196,900 |
| 17777 | Watsontown | 7,030 | $67,188 | $247,300 |
| 17801 | Sunbury | 16,429 | $60,664 | $192,700 |
| 17823 | Dornsife | 1,258 | $78,864 | $277,500 |
| 17830 | Herndon | 1,938 | $73,942 | $226,400 |
| 17832 | Marion Heights | 578 | $52,569 | $84,700 |
| 17834 | Kulpmont | 3,480 | $56,167 | $90,100 |
| 17836 | Leck Kill | 190 | $91,250 | $137,500 |
| 17840 | Locust Gap | 188 | — | — |
| 17847 | Milton | 11,260 | $58,775 | $241,100 |
| 17850 | Montandon | 576 | $51,429 | $84,600 |
| 17851 | Mount Carmel | 7,234 | $53,637 | $55,200 |
| 17857 | Northumberland | 7,671 | $67,298 | $224,200 |
| 17860 | Paxinos | 2,332 | $92,000 | $288,100 |
| 17865 | Potts Grove | 24 | $37,083 | $145,800 |
| 17866 | Coal Township | 9,769 | $51,010 | $73,300 |
| 17867 | Rebuck | 239 | $75,833 | $177,500 |
| 17868 | Riverside | 719 | $76,250 | $247,200 |
| 17872 | Shamokin | 8,894 | $48,750 | $55,500 |
| 17877 PO Box | Snydertown | — | — | — |
| 17881 | Trevorton | 1,479 | $54,122 | $137,300 |
ZIP codes partly in Northumberland County
These ZIP codes are mostly in a neighboring county but cover part of Northumberland County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 17756 | Muncy | Lycoming County | 12,856 | $77,043 | $278,200 |
| 17772 | Turbotville | Montour County | 2,693 | $81,146 | $276,600 |
| 17821 | Danville | Montour County | 18,613 | $76,971 | $277,800 |
| 17824 | Elysburg | Columbia County | 3,949 | $118,176 | $280,000 |
| 17941 | Klingerstown | Schuylkill County | 733 | $63,750 | $207,100 |
| 17964 | Pitman | Schuylkill County | 952 | $77,656 | $240,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Northumberland County
Nearby counties
Frequently asked questions
How many ZIP codes are in Northumberland County, Pennsylvania?
23 ZIP codes are mainly in Northumberland County, and 6 more ZIP codes from neighboring areas reach partly into it.
What cities are in Northumberland County?
ZIP codes in Northumberland County use the city names Coal Township, Dalmatia, Dewart, Dornsife, Herndon, Kulpmont, Leck Kill, Locust Gap, Marion Heights, Mc Ewensville, Milton and Montandon and others.
What metro area is Northumberland County in?
Northumberland County is part of the Sunbury, PA micropolitan statistical area.