Voter Registration Totals as of June 3, 2019
| Cong. Dist. |
Total Registered |
| 1 |
451,880 |
| 2 |
404,631 |
| Total |
856,511 |
| Leg. Dist. |
Total Registered |
| 1 |
29,047 |
| 2 |
29,568 |
| 3 |
25,859 |
| 4 |
26,800 |
| 5 |
27,699 |
| 6 |
23,287 |
| 7 |
24,199 |
| 8 |
29,331 |
| 9 |
22,828 |
| 10 |
18,466 |
| 11 |
24,965 |
| 12 |
20,980 |
| 13 |
22,469 |
| 14 |
37,204 |
| 15 |
24,194 |
| 16 |
26,010 |
| 17 |
23,086 |
| 18 |
29,764 |
| 19 |
32,109 |
| 20 |
26,973 |
| 21 |
29,861 |
| 22 |
22,875 |
| 23 |
18,432 |
| 24 |
20,540 |
| 25 |
20,249 |
| 26 |
22,240 |
| 27 |
17,224 |
| 28 |
23,743 |
| 29 |
20,990 |
| 30 |
25,227 |
| 31 |
20,003 |
| 32 |
25,007 |
| 33 |
20,214 |
| 34 |
22,849 |
| 35 |
22,219 |
| Total |
856,511 |
| County |
Total Registered |
| Ada |
252,076 |
| Adams |
2,601 |
| Bannock |
41,448 |
| Bear Lake |
3,430 |
| Benewah |
5,155 |
| Bingham |
20,003 |
| Blaine |
13,302 |
| Boise |
4,795 |
| Bonner |
26,389 |
| Bonneville |
52,821 |
| Boundary |
6,237 |
| Butte |
1,492 |
| Camas |
712 |
| Canyon |
90,896 |
| Caribou |
3,691 |
| Cassia |
9,449 |
| Clark |
397 |
| Clearwater |
4,377 |
| Custer |
2,800 |
| Elmore |
10,473 |
| Franklin |
6,136 |
| Fremont |
6,728 |
| Gem |
9,637 |
| Gooding |
6,118 |
| Idaho |
9,787 |
| Jefferson |
13,602 |
| Jerome |
7,979 |
| Kootenai |
82,227 |
| Latah |
22,544 |
| Lemhi |
5,214 |
| Lewis |
1,993 |
| Lincoln |
2,108 |
| Madison |
18,481 |
| Minidoka |
7,775 |
| Nez Perce |
21,294 |
| Oneida |
2,502 |
| Owyhee |
5,164 |
| Payette |
10,984 |
| Power |
3,285 |
| Shoshone |
6,456 |
| Teton |
6,236 |
| Twin Falls |
35,605 |
| Valley |
6,885 |
| Washington |
5,227 |
| Total |
856,511 |