Washington County, Idaho
Precinct data
Results by precinct
11 precincts · 5,555 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -008008 | 88 | 556 | 13 | 657 | 13.4% | 84.6% | R+71.2 |
|---|---|---|---|---|---|---|---|
| Precinct -001001 | 93 | 525 | 9 | 627 | 14.8% | 83.7% | R+68.9 |
| Precinct -009009 | 145 | 393 | 14 | 552 | 26.3% | 71.2% | R+44.9 |
| Precinct -010010 | 61 | 461 | 12 | 534 | 11.4% | 86.3% | R+74.9 |
| Precinct -011011 | 65 | 436 | 13 | 514 | 12.6% | 84.8% | R+72.2 |
| Precinct -002002 | 113 | 385 | 10 | 508 | 22.2% | 75.8% | R+53.5 |
| Precinct -004004 | 143 | 337 | 11 | 491 | 29.1% | 68.6% | R+39.5 |
| Precinct -007007 | 19 | 465 | 7 | 491 | 3.9% | 94.7% | R+90.8 |
| Precinct -005005 | 116 | 350 | 12 | 478 | 24.3% | 73.2% | R+49.0 |
| Precinct -006006 | 86 | 276 | 7 | 369 | 23.3% | 74.8% | R+51.5 |
| Precinct -003003 | 81 | 245 | 8 | 334 | 24.3% | 73.4% | R+49.1 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −36.1% |
| 1896 | +60.0% |
| 1900 | +5.9% |
| 1904 | −30.9% |
| 1908 | −9.6% |
| 1912 | +11.9% |
| 1916 | +7.4% |
| 1920 | −19.2% |
| 1924 | −19.6% |
| 1928 | −33.6% |
| 1932 | +26.0% |
| 1936 | +25.7% |
| 1940 | +9.3% |
| 1944 | −4.0% |
| 1948 | −0.4% |
| 1952 | −29.9% |
| 1956 | −15.8% |
| 1960 | −11.7% |
| 1964 | +6.0% |
| 1968 | −28.2% |
| 1972 | −36.4% |
| 1976 | −9.2% |
| 1980 | −32.6% |
| 1984 | −45.3% |
| 1988 | −26.6% |
| 1992 | −15.9% |
| 1996 | −23.8% |
| 2000 | −47.1% |
| 2004 | −51.4% |
| 2008 | −42.8% |
| 2012 | −46.7% |
| 2016 | −56.3% |
| 2020 | −57.7% |
| 2024 | −61.5% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 14.5%1,128 | 74.3%5,788 | 7,794 |
| 2020 | R | 21.4%1,147 | 75.7%4,050 | 5,351 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 6.4 points more Republican.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2018 | 5,188 | 386 | 3,553 | 1,216 | 33 |
| 2020 | 6,031 | 552 | 4,244 | 1,186 | 49 |
| 2022 | 5,907 | 485 | 4,382 | 988 | 52 |
| 2024 | 6,337 | 486 | 4,795 | 995 | 61 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+135 net domestic migration · 2025
Net +1,211 over 2011–2025 · gain loss
Arrivals reported $64,829 in average income, against $62,568 for residents who stayed — 4% higher. (IRS SOI, 2022–23)
The places arrivals came from lean R+36.3 on average — 25 points more Democratic-leaning than Washington County, ID itself (R+61.5).
Where arrivals came from lean of each source
- Ada County, ID53R+10.3
- Payette County, ID40R+62.9
- Canyon County, ID30R+46.6
Where departures went households, 2022–23
- Ada County, ID53
- Payette County, ID49
- Canyon County, ID47
- Malheur County, OR27
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −36 |
| 2012 | −74 |
| 2013 | −93 |
| 2014 | +63 |
| 2015 | −55 |
| 2016 | +153 |
| 2017 | +29 |
| 2018 | +88 |
| 2019 | +64 |
| 2021 | +423 |
| 2022 | +278 |
| 2023 | +266 |
| 2024 | −30 |
| 2025 | +135 |
Washington County's sparse, agriculture-driven population anchors it among Idaho's most one-sided presidential counties, delivering R+61.7 in 2024 — a margin that has remained consistently wide across recent election cycles.
Across the recorded series it reached a Democratic high of 60.0 points in 1896 and a Republican high of 61.5 points in 2024. Between 2020 and 2024 the county moved 3.9 points toward the Republican candidate; the 2024 margin was 61.5 points.
A population of 11,142, a 78% non-Hispanic-white share, and a median household income of $54,000 describe the county. The county's voting pattern over the last decade is most similar to that of Lewis County and Owyhee County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Washington County, Idaho. Akashic. https://akashic.app/county/16087/. Accessed May 20, 2026. License: CC BY 4.0.