Voter Registration Totals as of September 3, 2019
| Cong. Dist. |
Total Registered |
| 1 |
452,935 |
| 2 |
404,896 |
| Total |
857,836 |
| Leg. Dist. |
Total Registered |
| 1 |
29,089 |
| 2 |
29,709 |
| 3 |
25,963 |
| 4 |
26,826 |
| 5 |
27,780 |
| 6 |
23,224 |
| 7 |
24,267 |
| 8 |
29,311 |
| 9 |
22,815 |
| 10 |
18,499 |
| 11 |
25,062 |
| 12 |
20,977 |
| 13 |
22,437 |
| 14 |
37,536 |
| 15 |
24,227 |
| 16 |
26,046 |
| 17 |
23,097 |
| 18 |
29,828 |
| 19 |
32,244 |
| 20 |
27,087 |
| 21 |
29,947 |
| 22 |
23,006 |
| 23 |
18,358 |
| 24 |
20,539 |
| 25 |
20,246 |
| 26 |
22,290 |
| 27 |
17,168 |
| 28 |
23,805 |
| 29 |
21,037 |
| 30 |
25,180 |
| 31 |
20,087 |
| 32 |
25,029 |
| 33 |
20,140 |
| 34 |
22,802 |
| 35 |
22,173 |
| Total |
857,836 |
| County |
Total Registered |
| Ada |
253,018 |
| Adams |
2,598 |
| Bannock |
41,548 |
| Bear Lake |
3,418 |
| Benewah |
5,143 |
| Bingham |
20,087 |
| Blaine |
13,341 |
| Boise |
4,825 |
| Bonner |
26,436 |
| Bonneville |
52,713 |
| Boundary |
6,237 |
| Butte |
1,484 |
| Camas |
712 |
| Canyon |
91,013 |
| Caribou |
3,682 |
| Cassia |
9,409 |
| Clark |
385 |
| Clearwater |
4,367 |
| Custer |
2,791 |
| Elmore |
10,493 |
| Franklin |
6,130 |
| Fremont |
6,707 |
| Gem |
9,624 |
| Gooding |
6,125 |
| Idaho |
9,779 |
| Jefferson |
13,597 |
| Jerome |
7,953 |
| Kootenai |
82,498 |
| Latah |
22,637 |
| Lemhi |
5,200 |
| Lewis |
1,986 |
| Lincoln |
2,117 |
| Madison |
18,440 |
| Minidoka |
7,759 |
| Nez Perce |
21,238 |
| Oneida |
2,533 |
| Owyhee |
5,059 |
| Payette |
10,963 |
| Power |
3,294 |
| Shoshone |
6,537 |
| Teton |
6,235 |
| Twin Falls |
35,638 |
| Valley |
6,871 |
| Washington |
5,216 |
| Total |
857,836 |