Sidney, Montana
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −49.0% |
| 2008 | −45.4% |
| 2012 | −52.0% |
| 2016 | −64.6% |
| 2020 | −65.5% |
| 2024 | −64.9% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 16.2%Harris450 | 81.1%Trump2,253 | 2.7% | R+64.9 | D+0.6 | R+63.5 | 2,777 | |
| R | 16.1%Biden502 | 81.6%Trump2,545 | 2.3% | R+65.5 | R+0.9 | R+69.9 | 3,120 | |
| R | 14.6%Clinton369 | 79.2%Trump1,997 | 6.1% | R+64.6 | R+12.6 | R+66.7 | 2,520 | |
| R | 22.7%Obama557 | 74.7%Romney1,835 | 2.6% | R+52.0 | R+6.6 | R+55.9 | 2,457 | |
| R | 25.7%Obama641 | 71.1%McCain1,772 | 3.2% | R+45.4 | D+3.6 | R+52.7 | 2,492 | |
| R | 25.1%Kerry582 | 74.1%Bush1,717 | 0.8% | R+49.0 | — | R+46.5 | 2,318 |
Sidney sits at the Montana edge of the Williston Basin, and the population swings tied to energy booms have repeatedly altered its demographic and electoral makeup faster than most comparably sized plains cities.
Across the recorded series it reached a Republican high of 65.5 points in 2020. Between 2020 and 2024 the city moved 0.6 points toward the Democratic candidate; the 2024 margin was 64.9 points.
A population of 6,171, a 84% non-Hispanic-white share, and a median household income of $62,538 describe the city. The city's voting pattern over the last decade is most similar to that of Dexter and Sheldon.
The cities 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.
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Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Sidney, Montana. Akashic. https://akashic.app/city/3067900/. Accessed May 20, 2026. License: CC BY 4.0.