This list of United States extradition treaties includes 116 countries.
[1][2] The first U.S. extradition treaty was with Ecuador, in force from 1873.
[3] The most recent U.S. extradition treaty is with Croatia, in force from 2022.
[4] The United States does not have an extradition treaty with China, Indonesia, Iran, Kazakhstan, Mongolia, Russia, Taiwan, Ukraine, Vietnam, the GCC states, most African states, and most former Soviet states, among others.
Some countries with US extradition treaties have refused to extradite, including Ecuador, Cuba, Bolivia, Nicaragua, Iceland, Pakistan, Egypt, Switzerland, Venezuela, Zimbabwe, etc.