List of United States senators from Idaho

Below is a chronological listing of the United States senators from Idaho. The state was admitted to the Union on July 3, 1890, and its U.S. senators belong to class 2 and class 3. Idaho's current U.S. Senators are Republicans Mike Crapo and Jim Risch. William Borah was Idaho's longest-serving senator. Idaho is one of fourteen states alongside California, Colorado, Georgia, Hawaii, Louisiana, Maine, Massachusetts, Minnesota, Missouri, Nevada, Pennsylvania, South Dakota and Utah to have a younger senior senator and an older junior senator.

List of senators

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