ZIP Code 17840
Locust Gap · Northumberland, Pennsylvania
17840 is the ZIP code of Locust Gap in Northumberland, Pennsylvania, United States.
- ZIP Code
- 17840
- County
- Northumberland
- State
- Pennsylvania
- Country
- United States
Place with ZIP code 17840
| Place | County | Location |
|---|---|---|
| Locust Gap | Northumberland | 40.773, -76.438 |
Near Philadelphia
The nearest major city is Philadelphia, about 141 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 17840?
Locust Gap.
Which county and state is 17840 in?
Northumberland, Pennsylvania, United States.
What is the nearest major city to 17840?
Philadelphia, about 141 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.