Voter Registration Totals as of April 6, 2020
| Cong. Dist. |
Total Registered |
| 1 |
476,422 |
| 2 |
419,292 |
| Total |
895,714 |
| Leg. Dist. |
Total Registered |
| 1 |
30,460 |
| 2 |
31,346 |
| 3 |
28,125 |
| 4 |
28,523 |
| 5 |
28,767 |
| 6 |
23,974 |
| 7 |
25,257 |
| 8 |
30,524 |
| 9 |
23,701 |
| 10 |
19,314 |
| 11 |
26,122 |
| 12 |
21,956 |
| 13 |
23,568 |
| 14 |
40,462 |
| 15 |
25,051 |
| 16 |
27,224 |
| 17 |
24,544 |
| 18 |
31,295 |
| 19 |
33,847 |
| 20 |
28,318 |
| 21 |
31,660 |
| 22 |
24,368 |
| 23 |
19,230 |
| 24 |
21,476 |
| 25 |
20,853 |
| 26 |
23,068 |
| 27 |
17,687 |
| 28 |
24,541 |
| 29 |
21,832 |
| 30 |
26,067 |
| 31 |
20,644 |
| 32 |
25,940 |
| 33 |
20,776 |
| 34 |
22,526 |
| 35 |
22,668 |
| Total |
895,714 |
| County |
Total Registered |
| Ada |
266,769 |
| Adams |
2,726 |
| Bannock |
42,994 |
| Bear Lake |
3,412 |
| Benewah |
5,296 |
| Bingham |
20,644 |
| Blaine |
13,899 |
| Boise |
5,105 |
| Bonner |
27,670 |
| Bonneville |
54,420 |
| Boundary |
6,540 |
| Butte |
1,475 |
| Camas |
736 |
| Canyon |
95,094 |
| Caribou |
3,736 |
| Cassia |
9,737 |
| Clark |
389 |
| Clearwater |
4,531 |
| Custer |
2,859 |
| Elmore |
11,119 |
| Franklin |
6,441 |
| Fremont |
6,849 |
| Gem |
10,062 |
| Gooding |
6,280 |
| Idaho |
10,145 |
| Jefferson |
13,955 |
| Jerome |
8,223 |
| Kootenai |
87,994 |
| Latah |
23,471 |
| Lemhi |
5,319 |
| Lewis |
2,110 |
| Lincoln |
2,153 |
| Madison |
18,067 |
| Minidoka |
7,950 |
| Nez Perce |
21,864 |
| Oneida |
2,685 |
| Owyhee |
5,280 |
| Payette |
11,400 |
| Power |
3,379 |
| Shoshone |
6,831 |
| Teton |
6,548 |
| Twin Falls |
36,937 |
| Valley |
7,179 |
| Washington |
5,441 |
| Total |
895,714 |