McCook County, South Dakota
Precinct data
Results by precinct
12 precincts · 3,031 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -55 | 168 | 483 | 16 | 667 | 25.2% | 72.4% | R+47.2 |
|---|---|---|---|---|---|---|---|
| Precinct -33 | 168 | 454 | 27 | 649 | 25.9% | 70.0% | R+44.1 |
| Precinct -11 | 192 | 429 | 7 | 628 | 30.6% | 68.3% | R+37.7 |
| Precinct -44 | 81 | 436 | 10 | 527 | 15.4% | 82.7% | R+67.4 |
| Precinct -66 | 74 | 304 | 7 | 385 | 19.2% | 79.0% | R+59.7 |
| Precinct -22 | 50 | 121 | 4 | 175 | 28.6% | 69.1% | R+40.6 |
| VTD-precinct 11 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 22 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 33 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 44 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 55 | 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 | −20.3% |
| 1896 | +21.2% |
| 1900 | +0.6% |
| 1904 | −29.0% |
| 1908 | −18.1% |
| 1912 | +44.6% |
| 1916 | −7.6% |
| 1920 | −42.2% |
| 1924 | −29.5% |
| 1928 | −11.9% |
| 1932 | +32.7% |
| 1936 | +8.6% |
| 1940 | −32.2% |
| 1944 | −36.8% |
| 1948 | −19.5% |
| 1952 | −45.3% |
| 1956 | −55.7% |
| 1960 | −13.9% |
| 1964 | +10.8% |
| 1968 | −8.1% |
| 1972 | +0.8% |
| 1976 | +2.2% |
| 1980 | −22.3% |
| 1984 | −13.5% |
| 1988 | −0.3% |
| 1992 | −0.3% |
| 1996 | −4.6% |
| 2000 | −24.5% |
| 2004 | −6.0% |
| 2008 | −14.5% |
| 2012 | −28.7% |
| 2016 | −45.3% |
| 2020 | −44.8% |
| 2024 | −49.3% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 16.1%408 | 80.3%2,033 | 2,533 |
| 2020 | R | 28.7%835 | 71.3%2,072 | 2,907 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 4.5 points more Democratic.
3,946 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
+11 net domestic migration · 2025
Net −69 over 2011–2025 · gain loss
Arrivals reported $60,864 in average income, against $94,783 for residents who stayed — 36% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+12.7 on average — 37 points more Democratic-leaning than McCook County, SD itself (R+49.3).
Where arrivals came from lean of each source
- Minnehaha County, SD57R+12.7
Where departures went households, 2022–23
- Minnehaha County, SD67
- Lincoln County, SD22
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 | −91 |
| 2012 | +34 |
| 2013 | +9 |
| 2014 | −41 |
| 2015 | −59 |
| 2016 | +6 |
| 2017 | +12 |
| 2018 | +14 |
| 2019 | −44 |
| 2021 | +45 |
| 2022 | +44 |
| 2023 | +34 |
| 2024 | −43 |
| 2025 | +11 |
McCook County's R+49.3 margin in 2024 reflects the heavily rural, agricultural character typical of southeast South Dakota, where small towns and dispersed farm households have voted consistently Republican by wide margins for decades.
Across the recorded series it reached a Democratic high of 44.6 points in 1912 and a Republican high of 55.7 points in 1956. Between 2020 and 2024 the county moved 4.5 points toward the Republican candidate; the 2024 margin was 49.3 points.
A population of 5,751, a 93% non-Hispanic-white share, and a median household income of $83,852 describe the county. The county's voting pattern over the last decade is most similar to that of Sanborn County and Brule 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 →
McCook County, South Dakota. Akashic. https://akashic.app/county/46087/. Accessed May 20, 2026. License: CC BY 4.0.