| Mint Branch | Mint Mark | Years Used |
|---|---|---|
| Philadelphia (PA) | P | 1793-present (no mark on cents until 2017, except for 1942-1945 wartime nickels and 1979-1999 Susan B. Anthony dollars) |
| Denver (CO) | D | 1906-present |
| San Francisco (CA) | S | 1854-1955, 1968-present (primarily proofs, some circulation in early 1980s and Susan B. Anthony dollar) |
| West Point (NY) | W | 1984-present (began in 1974 without a mint mark) |
| Carson City (NV) | CC | 1870-1893 |
| New Orleans (LA) | O | 1838-1861, 1879-1909 |
| Charlotte (NC) | C | 1838-1861 (gold coinage only) |
| Dahlonega (GA) | D | 1838-1861 (gold coinage only) |
| Manila (Philippines) | M | 1920-1921, 1925-1941 |
