Newest U.S. State Starting with "New": New Mexico (1912)

Among the four U.S. states whose names begin with "New," New Mexico is the most recent to join the Union:

• New Hampshire – 9th state, June 21, 1788
• New York – 11th state, July 26, 1788
• New Jersey – 3rd state, December 18, 1787
• New Mexico – 47th state, January 6, 1912

New Mexico's admission came 64 years after the previous "New" state (New York, 1788), reflecting its territorial history and the delayed settlement of the Southwest.