Historical Marker
Pioneer Public Buildings
Historical marker location:
St. Johns, Arizona
( Marker is on North Washington Street (U.S. 180 at milepost 368.7), on the right when traveling west.)
Marker installed: 1954
Arizona was the last contiguous state to join the Union: Arizona became the 48th state in the US on February 14, 1912. It was the last of the contiguous states to be admitted to the Union.