(1) Members of the commission shall be selected and appointed because of their ability and disposition to serve the state’s interest and for knowledge of the state’s natural resources. Members shall be citizens over twenty-five (25) years of age, residents of the state who have been actually engaged in growing wheat in this state for at least five (5) years, and who derive a substantial portion of their income from growing wheat in the state of Idaho.
(2)  There shall be one (1) member from each of the five (5) districts described hereinafter:
District 1. The six (6) northern counties: Boundary, Bonner, Kootenai, Benewah, Latah and Shoshone.
District 2. Nez Perce, Lewis, Idaho, Adams, Washington, Payette, Gem, Boise, Valley and Clearwater Counties.
District 3. Canyon, Owyhee, Ada, Elmore, Camas, Gooding, Twin Falls, Blaine, Lincoln, Jerome, Minidoka and Cassia Counties.
District 4. Lemhi, Custer, Butte, Clark, Fremont, Jefferson, Madison, Teton, Bingham and Bonneville Counties.
District 5. Power, Bannock, Caribou, Oneida, Franklin and Bear Lake Counties.