Sully County, South Dakota
Precinct data
Results by precinct
8 precincts · 0 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| VTD-precinct 11 | 0 | 0 | 0 | 0 | — | — | Even |
|---|---|---|---|---|---|---|---|
| VTD-precinct 22 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 2 Comm Dist 1 Onida City1 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 3 Comm Dist 2 Onida City2 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 4 Comm Dist 3 Onida City3 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 55 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 5 Comm Dist 5 Onida City5 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 66 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −49.4% |
| 1896 | −13.8% |
| 1900 | −31.3% |
| 1904 | −71.5% |
| 1908 | −39.7% |
| 1912 | +42.3% |
| 1916 | −2.3% |
| 1920 | −45.9% |
| 1924 | −44.4% |
| 1928 | −41.2% |
| 1932 | +25.6% |
| 1936 | −20.2% |
| 1940 | −29.4% |
| 1944 | −34.2% |
| 1948 | −17.5% |
| 1952 | −41.9% |
| 1956 | −19.0% |
| 1960 | −28.3% |
| 1964 | −5.6% |
| 1968 | −28.4% |
| 1972 | −30.1% |
| 1976 | −11.0% |
| 1980 | −55.0% |
| 1984 | −51.5% |
| 1988 | −17.7% |
| 1992 | −28.9% |
| 1996 | −26.4% |
| 2000 | −48.7% |
| 2004 | −54.6% |
| 2008 | −41.8% |
| 2012 | −52.2% |
| 2016 | −63.0% |
| 2020 | −58.2% |
| 2024 | −60.8% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 14.6%114 | 79.4%622 | 783 |
| 2020 | R | 18.1%168 | 81.9%759 | 927 |
Registered voters
By party of registration, over time
Registration and the presidential vote track closely here — within 2.6 points.
1,147 registered voters · 2026
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+1 net domestic migration · 2025
Net −51 over 2011–2025 · gain loss
Arrivals reported $104,344 in average income, against $88,064 for residents who stayed — 18% 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 | −9 |
| 2012 | +39 |
| 2013 | +7 |
| 2014 | −42 |
| 2015 | −11 |
| 2016 | +6 |
| 2017 | −23 |
| 2018 | −30 |
| 2019 | +9 |
| 2021 | +19 |
| 2022 | −2 |
| 2023 | +5 |
| 2024 | −20 |
| 2025 | +1 |
Sully County's roughly 1,500 residents are spread across nearly 1,000 square miles of Missouri River plateau, and its presidential margins have exceeded R+50 in every cycle since at least 2000.
Across the recorded series it reached a Democratic high of 42.3 points in 1912 and a Republican high of 71.5 points in 1904. Between 2020 and 2024 the county moved 2.6 points toward the Republican candidate; the 2024 margin was 60.8 points.
A population of 1,526, a 87% non-Hispanic-white share, and a median household income of $72,578 describe the county. The county's voting pattern over the last decade is most similar to that of Harding County and Hayes 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 →
Sully County, South Dakota. Akashic. https://akashic.app/county/46119/. Accessed May 20, 2026. License: CC BY 4.0.