Today, the flag of the state of Idaho flies in commemoration of the the Gem State’s admission to the Union on July 3, 1890 as the 43rd state.

Originally adopted on March 12, 1907, updated later that same year and again in 1957, the Idaho state flag is defined in Idaho Statutes § 46-801 as follows:State flag. A state flag for the state of Idaho is hereby adopted, the same to be as follows:
“A silk flag, blue field, five (5) feet six (6) inches fly, and four (4) feet four (4) inches on pike, bordered with gilt fringe two and one-half (2 1/2) inches in width, with state seal of Idaho twenty-one (21) inches in diameter, in colors, in the center of a blue field. The words “State of Idaho” are embroidered in with block letters, two (2) inches in height on a red band three (3) inches in width by twenty-nine (29) inches in length, the band being in gold and placed about eight and one-half (8 1/2) inches from the lower border of fringe and parallel with the same.”