Most Recent States Admitted Into the Union
The United States currently has 50 states within the union, but there could be more coming in the future. Puerto Rico is pushing to become the 51st state, according to Vox. Right now citizens on the island aren't allowed to vote in presidential elections. Washington, D.C., is another contender to become the 51st state. According to the New Yorker, there was a vote as recently as this year to give the district statehood (though it later failed).
It's been a long 60 years since a new state entered the union. This is how the ten most recent states became a part of the nation: