ZIP Code 63664
Potosi · Washington, Missouri
63664 is the ZIP code of Potosi in Washington, Missouri, United States.
- ZIP Code
- 63664
- County
- Washington
- State
- Missouri
- Country
- United States
Place with ZIP code 63664
| Place | County | Location |
|---|---|---|
| Potosi | Washington | 37.955, -90.841 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 63664?
Potosi.
Which county and state is 63664 in?
Washington, Missouri, 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.