April 2021 New START declaration: 1,357 strategic nuclear warheads deployed on 651 intercontinental ballistic missiles, submarine-launched ballistic missiles, and strategic bombers.
The United States also has an estimated 100 B-61 nuclear gravity bombs that are forward-deployed at six NATO bases in five European countries: Aviano and Ghedi in Italy; Büchel in Germany; Incirlik in Turkey; Kleine Brogel in Belgium; and Volkel in the Netherlands. The total estimated U.S. B-61 stockpile amounts to 230.
On October 5, 2021, the U.S. State department issued a declassification announcement indicating that the total number of U.S. “active” and “inactive” warheads is 3,750 as of September 2020. The stockpile figures do not include retired warheads and those awaiting dismantlement. FAS estimates there are 1,750 retired warheads awaiting dismantlement, for a total of 5,550 warheads as of early 2021.
