Voter file loaded July 20, 2026 · figures are from that file, held as a fixed record
Nez Perce County, Idaho has 22,166 active registered voters — 59.0% Republican, 11.8% Democratic, and 27.9% with no party affiliation, as of July 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 08 | 1,060 | 652 | 61.51% |
| 2 | 28 | 447 | 264 | 59.06% |
| 3 | 24 | 988 | 557 | 56.38% |
| 4 | 17 | 923 | 507 | 54.93% |
| 5 | 21 | 1,289 | 707 | 54.85% |
| 6 | 20 | 913 | 494 | 54.11% |
| 7 | 19 | 1,157 | 607 | 52.46% |
| 8 | 16 | 690 | 360 | 52.17% |
| 9 | 25 | 859 | 437 | 50.87% |
| 10 | 10 | 579 | 282 | 48.7% |
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.
How Nez Perce County voted for president
Election results are public records.
Nez Perce County at a glance.
Nez Perce County had an estimated 42,847 residents in July 2024, the tenth most populous of Idaho's 44 counties, up 1.8% since the 2020 census. Of those, 34,051 are 18 or older, the voting-age population, and 22.0% are 65 or older. Its 22,166 active registered voters equal about 65.1% of that voting-age population.
It covers 848 square miles of land (50 people per square mile), and 14.7% of residents live outside any incorporated city or town. The largest cities and towns are Lewiston (34,693), Lapwai (1,249), Culdesac (417) and Peck (172). The American Community Survey (2020-2024) puts it at a median age of 41.2, a median household income of $72,599, 27.1% of adults 25 and older holding a bachelor's degree or higher and 70.4% of occupied homes owned by the people living in them.
In 2024, 20,132 votes were cast for president, about 59.1% of the voting-age population; the Democratic ticket took 29.4% and the Republican ticket 68.1%. The two-party margin moved from R+18.1 in 2008 to R+38.7 in 2024.
- Population (2024 estimate)
- 42,847
- Population (2020 census base)
- 42,091
- Voting-age population (18+)
- 34,051
- Active voters per 100 adults
- 65.1
- Residents 65 and older
- 22.0%
- People per square mile
- 50
- Living outside incorporated places
- 14.7%
- Land area
- 848 sq mi
- Median age
- 41.2
- Median household income
- $72,599
- Adults 25+ with a bachelor's degree
- 27.1%
- Owner-occupied homes
- 70.4%
Largest cities and towns
- Lewiston 34,693
- Lapwai 1,249
- Culdesac 417
- Peck 172
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 29.4% | 68.1% | R+38.7 | 20,132 |
| 2020 | 31.9% | 65.5% | R+33.6 | 20,967 |
| 2016 | 28.1% | 62.2% | R+34.1 | 17,195 |
| 2012 | 38.3% | 59.2% | R+20.9 | 16,848 |
| 2008 | 40.0% | 58.1% | R+18.1 | 17,823 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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