Altamont was an

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

Greenville County, South Carolina Greenville County is located in the state of South Carolina, in the United States. As of the 2020 census, the population was 525,534, making it the most populous county in the state. Its county seat is Greenville. The county is also home to the ...

. Its summer post office operated from 1896 to 1915.

Sources

* Journal of the American Philatelist, published monthly. State College, Pennsylvania. Use form US-T154/MMYYYY/p#. 072000/p648
Altamont
South Carolina. Geographic Names Information System, U.S. Geological Survey. Former populated places in South Carolina Populated places in Greenville County, South Carolina Unincorporated communities in Greenville County, South Carolina {{SouthCarolina-geo-stub