ZIP Code 18631
Mifflinville · Columbia, Pennsylvania
18631 is the ZIP code of Mifflinville in Columbia, Pennsylvania, United States.
- ZIP Code
- 18631
- County
- Columbia
- State
- Pennsylvania
- Country
- United States
Place with ZIP code 18631
| Place | County | Location |
|---|---|---|
| Mifflinville | Columbia | 41.032, -76.308 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 18631?
Mifflinville.
Which county and state is 18631 in?
Columbia, Pennsylvania, United States.
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.