Custer County, Idaho
Precinct data
Results by precinct
9 precincts · 2,644 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -004004 | 140 | 461 | 14 | 615 | 22.8% | 75.0% | R+52.2 |
|---|---|---|---|---|---|---|---|
| Precinct -001001 | 67 | 489 | 13 | 569 | 11.8% | 85.9% | R+74.2 |
| Precinct -008008 | 72 | 418 | 15 | 505 | 14.3% | 82.8% | R+68.5 |
| Precinct -009009 | 96 | 214 | 6 | 316 | 30.4% | 67.7% | R+37.3 |
| Precinct -003003 | 149 | 85 | 2 | 236 | 63.1% | 36.0% | D+27.1 |
| Precinct -006006 | 38 | 126 | 1 | 165 | 23.0% | 76.4% | R+53.3 |
| Precinct -007007 | 20 | 133 | 6 | 159 | 12.6% | 83.6% | R+71.1 |
| Precinct -005005 | 4 | 72 | 3 | 79 | 5.1% | 91.1% | R+86.1 |
| Precinct -011011 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −36.3% |
| 1896 | +90.5% |
| 1900 | +38.2% |
| 1904 | −6.9% |
| 1908 | +6.4% |
| 1912 | +14.7% |
| 1916 | +30.2% |
| 1920 | −34.4% |
| 1924 | −15.0% |
| 1928 | −11.2% |
| 1932 | +30.6% |
| 1936 | +24.3% |
| 1940 | +8.1% |
| 1944 | +4.1% |
| 1948 | +1.0% |
| 1952 | −39.9% |
| 1956 | −20.7% |
| 1960 | +12.6% |
| 1964 | −0.4% |
| 1968 | −22.9% |
| 1972 | −49.9% |
| 1976 | −23.7% |
| 1980 | −52.6% |
| 1984 | −55.6% |
| 1988 | −33.6% |
| 1992 | −12.2% |
| 1996 | −26.5% |
| 2000 | −59.1% |
| 2004 | −51.0% |
| 2008 | −46.0% |
| 2012 | −51.6% |
| 2016 | −55.9% |
| 2020 | −54.3% |
| 2024 | −53.3% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 17.9%718 | 72.0%2,894 | 4,018 |
| 2020 | R | 22.3%603 | 73.0%1,978 | 2,708 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 20 points more Republican.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2018 | 2,836 | 148 | 2,021 | 645 | 22 |
| 2020 | 3,103 | 208 | 2,237 | 636 | 22 |
| 2022 | 3,046 | 195 | 2,274 | 552 | 25 |
| 2024 | 2,988 | 157 | 2,361 | 453 | 17 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+72 net domestic migration · 2025
Net +447 over 2011–2025 · gain loss
Arrivals reported $62,599 in average income, against $58,971 for residents who stayed — 6% higher. (IRS SOI, 2022–23)
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 | −35 |
| 2012 | +5 |
| 2013 | −107 |
| 2014 | −93 |
| 2015 | −69 |
| 2016 | +39 |
| 2017 | +51 |
| 2018 | +117 |
| 2019 | +69 |
| 2021 | +202 |
| 2022 | +96 |
| 2023 | +35 |
| 2024 | +65 |
| 2025 | +72 |
Custer County's sparse high-desert and mountain terrain anchors a small, stable electorate that has delivered Republican presidential margins above 50 points in recent cycles, making it among the most one-sided counties in the state.
Across the recorded series it reached a Democratic high of 90.5 points in 1896 and a Republican high of 59.1 points in 2000. Between 2020 and 2024 the county moved 1.0 points toward the Democratic candidate; the 2024 margin was 53.3 points.
A population of 4,470, a 88% non-Hispanic-white share, and a median household income of $67,574 describe the county. The county's voting pattern over the last decade is most similar to that of Union County and Jewell 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 →
Custer County, Idaho. Akashic. https://akashic.app/county/16037/. Accessed May 20, 2026. License: CC BY 4.0.