| US Post Office-Charleroi | |
| Designated Other1 Name: | Washington County History & Landmarks Foundation Landmark |
| Designated Other1 Link: | Washington County History & Landmarks Foundation |
| Designated Other1 Color: |
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| Coordinates: | 40.14°N -79.9006°W |
| Built: | 1909 |
| Architect: | James Knox Taylor |
| Architecture: | Colonial Revival |
| Added: | January 4, 1990 |
| Refnum: | 89002287 |
United States Post Office—Charleroi is a historic building in Charleroi, Pennsylvania. It is located at 638 Fallowfield Avenue.It is designated as a historic public landmark by the Washington County History & Landmarks Foundation.[1] It now houses the John K. Tener Library http://www.washlibs.org/john-k-tener/.