9,057
Active registered voters
12
Precincts
2,511
Supervoters (27.72%)
5
Presidential cycles of results
Voter file loaded July 20, 2026 · figures are from that file, held as a fixed record
Jerome County, Idaho has 9,057 active registered voters — 67.0% Republican, 9.2% Democratic, and 0.0% with no party affiliation, as of July 2026.
Party registration
Democratic 833 · Republican 6,067 · No Party Affiliation 0 · Other parties 2,157
Source: Motion51 voter database — official Idaho voter file
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 002 | 814 | 332 | 40.79% |
| 2 | 008 | 1,255 | 467 | 37.21% |
| 3 | 004 | 491 | 159 | 32.38% |
| 4 | 009 | 916 | 261 | 28.49% |
| 5 | 006 | 851 | 235 | 27.61% |
| 6 | 011 | 1,108 | 292 | 26.35% |
| 7 | 001 | 681 | 168 | 24.67% |
| 8 | 010 | 530 | 125 | 23.58% |
| 9 | 007 | 766 | 171 | 22.32% |
| 10 | 005 | 813 | 146 | 17.96% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
Source: Motion51 voter database — official Idaho voter file
How Jerome County voted for president
■ Democratic % ■ Republican % · 2024 total votes cast: 7,945
Election results are public records.
Source: Official county canvasses via MIT Election Data + Science Lab
Running in Jerome County?
The voter file is loaded. Create your campaign and start canvassing in minutes.
Start free in Jerome CountyAlso see: Motion51 in Idaho · How to run for office in Jerome County · Pricing