Voter Registration Totals as of March 10, 2020
| Cong. Dist. |
Total Registered |
| 1 |
469,180 |
| 2 |
413,552 |
| Total |
882,732 |
| Leg. Dist. |
Total Registered |
| 1 |
30,027 |
| 2 |
30,815 |
| 3 |
27,351 |
| 4 |
27,973 |
| 5 |
28,372 |
| 6 |
23,685 |
| 7 |
24,793 |
| 8 |
30,051 |
| 9 |
23,431 |
| 10 |
19,164 |
| 11 |
25,875 |
| 12 |
21,727 |
| 13 |
23,345 |
| 14 |
39,816 |
| 15 |
24,813 |
| 16 |
26,818 |
| 17 |
24,017 |
| 18 |
30,861 |
| 19 |
33,416 |
| 20 |
27,904 |
| 21 |
31,101 |
| 22 |
23,933 |
| 23 |
18,948 |
| 24 |
21,206 |
| 25 |
20,542 |
| 26 |
22,839 |
| 27 |
17,506 |
| 28 |
24,226 |
| 29 |
21,559 |
| 30 |
25,678 |
| 31 |
20,429 |
| 32 |
25,547 |
| 33 |
20,489 |
| 34 |
22,002 |
| 35 |
22,476 |
| Total |
882,732 |
| County |
Total Registered |
| Ada |
262,679 |
| Adams |
2,673 |
| Bannock |
42,460 |
| Bear Lake |
3,419 |
| Benewah |
5,227 |
| Bingham |
20,429 |
| Blaine |
13,789 |
| Boise |
4,945 |
| Bonner |
27,279 |
| Bonneville |
53,636 |
| Boundary |
6,430 |
| Butte |
1,492 |
| Camas |
732 |
| Canyon |
94,225 |
| Caribou |
3,668 |
| Cassia |
9,618 |
| Clark |
384 |
| Clearwater |
4,449 |
| Custer |
2,832 |
| Elmore |
10,953 |
| Franklin |
6,319 |
| Fremont |
6,782 |
| Gem |
9,945 |
| Gooding |
6,228 |
| Idaho |
9,961 |
| Jefferson |
13,818 |
| Jerome |
8,095 |
| Kootenai |
86,139 |
| Latah |
23,145 |
| Lemhi |
5,273 |
| Lewis |
2,055 |
| Lincoln |
2,090 |
| Madison |
17,596 |
| Minidoka |
7,888 |
| Nez Perce |
21,630 |
| Oneida |
2,644 |
| Owyhee |
5,200 |
| Payette |
11,299 |
| Power |
3,325 |
| Shoshone |
6,701 |
| Teton |
6,434 |
| Twin Falls |
36,448 |
| Valley |
7,056 |
| Washington |
5,344 |
| Total |
882,732 |