ZIP Code 16420
Grand Valley · Warren, Pennsylvania
16420 is the ZIP code of Grand Valley in Warren, Pennsylvania, United States.
- ZIP Code
- 16420
- County
- Warren
- State
- Pennsylvania
- Country
- United States
Place with ZIP code 16420
| Place | County | Location |
|---|---|---|
| Grand Valley | Warren | 41.696, -79.547 |
Near Buffalo
The nearest major city is Buffalo, about 143 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 16420?
Grand Valley.
Which county and state is 16420 in?
Warren, Pennsylvania, United States.
What is the nearest major city to 16420?
Buffalo, about 143 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.