ZIP Code 18003
Lehigh Valley · Northampton, Pennsylvania
18003 is the ZIP code of Lehigh Valley in Northampton, Pennsylvania, United States.
- ZIP Code
- 18003
- County
- Northampton
- State
- Pennsylvania
- Country
- United States
Place with ZIP code 18003
| Place | County | Location |
|---|---|---|
| Lehigh Valley | Northampton | 40.693, -75.471 |
Near Philadelphia
The nearest major city is Philadelphia, about 86 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 18003?
Lehigh Valley.
Which county and state is 18003 in?
Northampton, Pennsylvania, United States.
What is the nearest major city to 18003?
Philadelphia, about 86 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.