Sacagawea dollars began being minted in 2000 in accordance with the United States $1 Coin Act of 1997. These coins were made to replace the unpopular Susan B. Anthony dollar coins which were often confused with quarters because of their similar size, similar ridged edge, and identical color. To remedy this problem, Sacagawea dollars were given a smooth outside edge (similar to the Nickel) and distinctive gold color which made it the only gold-colored coin in the United States that was circulating at the time.
Mintage:
| Philadelphia | Denver | Proof |
| 767,140,000 | 518,916,000 | 4,047,904 |