| Region 7 | ||||||
| Rate per 1000 of Registered Voters | ||||||
| Source: Office of the Secretary of State | ||||||
| 1996 | 1998 | 2000 | 2002 | 2004 | 2006 | |
| Bonneville | 588.91 | 529.30 | 570.15 | 507.81 | 560.74 | 514.45 |
| Butte | 646.79 | 652.42 | 747.15 | 699.31 | 701.55 | 671.65 |
| Clark | 755.23 | 691.79 | 498.04 | 428.28 | 476.82 | 453.14 |
| Custer | 737.20 | 725.25 | 767.62 | 682.20 | 752.55 | 694.26 |
| Fremont | 598.54 | 540.52 | 596.67 | 545.24 | 609.23 | 564.77 |
| Jefferson | 520.09 | 487.51 | 522.94 | 494.16 | 544.56 | 514.17 |
| Lemhi | 610.97 | 603.03 | 638.87 | 632.11 | 652.18 | 673.21 |
| Madison | 464.09 | 431.88 | 488.08 | 441.74 | 522.42 | 408.21 |
| Teton | 686.93 | 604.55 | 643.11 | 567.14 | 612.99 | 613.19 |
| * This data is reported by rate per 1000 of the population. | ||||||
| * Population 18 years and over | ||||||
| * This data is for the general elections of the reported years. | ||||||