The 1940-D Mercury Dime was struck at the Denver Mint with a recorded mintage of 21,198,000 coins — the 40th-lowest of the 77 circulation-strike issues in the mercury dime series, and 20% of the 108,108,000 mercury dimes the Mint produced across all facilities in 1940.
A full collector's note for this issue — survival, strike character, and what to check before buying — is on the writing schedule; the figures above are the permanent record.
| Issue | Mint | Mintage |
|---|---|---|
| 1940 Mercury Dime | Philadelphia | 65,350,000 |
| 1940-S Mercury Dime | San Francisco | 21,560,000 |
| 1940-D Mercury Dime | Denver | 21,198,000 |
Mintage figures: United States Mint, Annual Report of the Director of the Mint, cross-checked across independent published references. Specifications: United States Mint coin specifications.