Big Horn County, Montana
Precinct data
Results by precinct
23 precincts · 4,470 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -PRECINCT #7PRECINCT #7 | 356 | 142 | 21 | 519 | 68.6% | 27.4% | D+41.2 |
|---|---|---|---|---|---|---|---|
| Precinct -PRECINCT #19PRECINCT #19 | 189 | 291 | 14 | 494 | 38.3% | 58.9% | R+20.6 |
| Precinct -PRECINCT #21PRECINCT #21 | 218 | 174 | 14 | 406 | 53.7% | 42.9% | D+10.8 |
| Precinct -PRECINCT #17PRECINCT #17 | 147 | 213 | 14 | 374 | 39.3% | 57.0% | R+17.6 |
| Precinct -PRECINCT #18PRECINCT #18 | 134 | 215 | 18 | 367 | 36.5% | 58.6% | R+22.1 |
| Precinct -PRECINCT #15PRECINCT #15 | 120 | 135 | 5 | 260 | 46.2% | 51.9% | R+5.8 |
| Precinct -PRECINCT #26PRECINCT #26 | 174 | 61 | 14 | 249 | 69.9% | 24.5% | D+45.4 |
| Precinct -PRECINCT #4NPRECINCT #4N | 27 | 141 | 5 | 173 | 15.6% | 81.5% | R+65.9 |
| Precinct -PRECINCT #14PRECINCT #14 | 77 | 77 | 12 | 166 | 46.4% | 46.4% | Even |
| Precinct -PRECINCT #5PRECINCT #5 | 105 | 45 | 4 | 154 | 68.2% | 29.2% | D+39.0 |
| Precinct -PRECINCT #2PRECINCT #2 | 68 | 73 | 12 | 153 | 44.4% | 47.7% | R+3.3 |
| Precinct -PRECINCT #11PRECINCT #11 | 92 | 54 | 2 | 148 | 62.2% | 36.5% | D+25.7 |
| Precinct -PRECINCT #20PRECINCT #20 | 32 | 95 | 3 | 130 | 24.6% | 73.1% | R+48.5 |
| Precinct -PRECINCT #8PRECINCT #8 | 29 | 78 | 7 | 114 | 25.4% | 68.4% | R+43.0 |
| Precinct -PRECINCT #9PRECINCT #9 | 74 | 29 | 7 | 110 | 67.3% | 26.4% | D+40.9 |
| Precinct -PRECINCT #12PRECINCT #12 | 79 | 23 | 6 | 108 | 73.1% | 21.3% | D+51.9 |
| Precinct -PRECINCT #3PRECINCT #3 | 16 | 79 | 1 | 96 | 16.7% | 82.3% | R+65.6 |
| Precinct -PRECINCT #4PRECINCT #4 | 17 | 67 | 5 | 89 | 19.1% | 75.3% | R+56.2 |
| Precinct -PRECINCT #1PRECINCT #1 | 31 | 57 | 0 | 88 | 35.2% | 64.8% | R+29.5 |
| Precinct -PRECINCT #25PRECINCT #25 | 47 | 35 | 3 | 85 | 55.3% | 41.2% | D+14.1 |
| Precinct -PRECINCT #16PRECINCT #16 | 58 | 20 | 2 | 80 | 72.5% | 25.0% | D+47.5 |
| Precinct -PRECINCT #10PRECINCT #10 | 12 | 49 | 0 | 61 | 19.7% | 80.3% | R+60.7 |
| Precinct -PRECINCT #6PRECINCT #6 | 10 | 35 | 1 | 46 | 21.7% | 76.1% | R+54.3 |
Presidential margin, 1916–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1916 | +19.4% |
| 1920 | −36.6% |
| 1924 | −40.3% |
| 1928 | −11.2% |
| 1932 | +25.9% |
| 1936 | +29.8% |
| 1940 | +8.7% |
| 1944 | −3.9% |
| 1948 | −0.2% |
| 1952 | −32.0% |
| 1956 | −12.9% |
| 1960 | −7.0% |
| 1964 | +25.7% |
| 1968 | −14.2% |
| 1972 | −15.6% |
| 1976 | +9.6% |
| 1980 | −2.3% |
| 1984 | +5.7% |
| 1988 | +13.1% |
| 1992 | +17.7% |
| 1996 | +26.4% |
| 2000 | +16.7% |
| 2004 | +4.3% |
| 2008 | +36.2% |
| 2012 | +26.3% |
| 2016 | +5.7% |
| 2020 | +5.9% |
| 2024 | −1.7% |
U.S. Senate
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 7,994 |
| 2018 | 7,911 |
| 2020 | 7,445 |
| 2022 | 7,101 |
| 2024 | 7,702 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−147 net domestic migration · 2025
Net −1,400 over 2011–2025 · gain loss
Arrivals reported $47,712 in average income, against $55,219 for residents who stayed — 14% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+27.1 on average — 25 points more Republican-leaning than Big Horn County, MT itself (R+1.7).
Where arrivals came from lean of each source
- Yellowstone County, MT79R+27.1
Where departures went households, 2022–23
- Yellowstone County, MT93
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 | −4 |
| 2012 | −212 |
| 2013 | +2 |
| 2014 | +9 |
| 2015 | −216 |
| 2016 | +6 |
| 2017 | −130 |
| 2018 | −231 |
| 2019 | −170 |
| 2021 | −129 |
| 2022 | −44 |
| 2023 | −70 |
| 2024 | −64 |
| 2025 | −147 |
Big Horn County is home to the Crow Reservation, and Native American voters—roughly half the population—have historically driven Democratic margins that make this one of Montana's most competitive counties despite its rural ranching character.
Across the recorded series it reached a Democratic high of 36.2 points in 2008 and a Republican high of 40.3 points in 1924. Between 2020 and 2024 the county moved 7.6 points toward the Republican candidate; the 2024 margin was 1.7 points.
A population of 12,891, a 27% non-Hispanic-white share, and a median household income of $58,750 describe the county. The county's voting pattern over the last decade is most similar to that of Blaine County and Roosevelt 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 →
Big Horn County, Montana. Akashic. https://akashic.app/county/30003/. Accessed May 20, 2026. License: CC BY 4.0.