At One Place

When was a US state last admitted?

When was a US state last admitted?
21 August 1959
Hawaii, the fiftieth

Alaska had been admitted seven months earlier, on 3 January 1959, so the fiftieth star was added to the flag on 4 July 1960 and has not moved since. The flag design allows for adding a star and has no provision for removing one. Statehood for the District of Columbia and Puerto Rico has been proposed repeatedly and has never passed both chambers.

What
Hawaii, the fiftieth
When
21 August 1959
Category
Countries and borders
Could this change?
Yes. This streak could end, and if it does this page becomes a historical note rather than an answer.

Countries and borders

Question When
When did a country last join the United Nations? 14 July 2011
When was the US Constitution last amended? 7 May 1992
When did Britain last change its currency system? 15 February 1971
When did the US flag last change? 4 July 1960
When did a European country last change calendar? 1923
When did the size of the US Supreme Court last change? 1869
When did the Union Jack last change? 1 January 1801

This page gives a date and never a "years ago". These pages are built as static files, so a computed interval would freeze at build time and quietly become wrong — which on a reference site is worse than making the reader do the subtraction.

Common questions

When was a US state last admitted?
21 August 1959 — Hawaii, the fiftieth.
What happened?
Alaska had been admitted seven months earlier, on 3 January 1959, so the fiftieth star was added to the flag on 4 July 1960 and has not moved since. The flag design allows for adding a star and has no provision for removing one. Statehood for the District of Columbia and Puerto Rico has been proposed repeatedly and has never passed both chambers.
Could it happen again?
Yes. This is one of the entries where the streak could plausibly end, which is stated on the page rather than left implied.

Related pages

Sources

  1. Wikidata — Wikimedia Foundation (CC0 1.0)

How these figures are compiled and checked