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Idaho Constitution
The Idaho Constitution is updated to the website July 1 following the legislative session.
CONSTITUTION OF THE STATE OF IDAHO
ARTICLE XIX APPORTIONMENT
Section 1. Senatorial districts. Until otherwise provided by law the apportionment of the two houses of the legislature shall be as follows:
The first senatorial district shall consist of the county of Shoshone, and shall elect two senators.
The second shall consist of the counties of Kootenai and Latah, and shall elect one senator.
The third shall consist of the counties of Nez Perce and Idaho, and shall elect one senator.
The fourth shall consist of the counties of Nez Perce and Latah, and shall elect one senator.
The fifth shall consist of the county of Latah, and shall elect one senator.
The sixth shall consist of the county of Boise, and shall elect one senator.
The seventh shall consist of the county of Custer, and shall elect one senator.
The eighth shall consist of the county of Lemhi, and shall elect one senator.
The ninth shall consist of the county of Logan, and shall elect on senator.
The tenth shall consist of the county of Bingham, and shall elect one senator.
The eleventh shall consist of the counties of Bear Lake, Oneida and Bingham, and shall elect one senator.
The twelfth shall consist of the counties of Owyhee and Cassia, and shall elect one senator.
The thirteenth shall consist of the county of Elmore, and shall elect one senator.
The fourteenth shall consist of the county of Alturas, and shall elect one senator.
The fifteenth shall consist of the county of Ada, and shall elect two senators.