Living United States Presidents

There have never been more than 6 living presidents at any one time in US history. There are also a few periods where the only living president was the one currently in office, most recently in 1974 during Richard Nixon's administration. Currently there are five living presidents: Jimmy Carter, George H. W. Bush, Bill Clinton, George W. Bush, and Barack Obama.

This visualization was created by @RaviSParikh using d3.js.