Lyman County, South Dakota
Precinct data
Results by precinct
14 precincts · 1,447 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -1212 | 66 | 292 | 8 | 366 | 18.0% | 79.8% | R+61.7 |
|---|---|---|---|---|---|---|---|
| Precinct -0404 | 88 | 211 | 8 | 307 | 28.7% | 68.7% | R+40.1 |
| Precinct -0909 | 35 | 208 | 5 | 248 | 14.1% | 83.9% | R+69.8 |
| Precinct -0707 | 177 | 27 | 6 | 210 | 84.3% | 12.9% | D+71.4 |
| Precinct -0606 | 32 | 108 | 4 | 144 | 22.2% | 75.0% | R+52.8 |
| Precinct -1313 | 16 | 83 | 1 | 100 | 16.0% | 83.0% | R+67.0 |
| Precinct -0101 | 8 | 64 | 0 | 72 | 11.1% | 88.9% | R+77.8 |
| VTD-precinct 1 Iona1 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 12 Presho12 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 13 Vivian13 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 4 Oacoma4 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 6 Reliance6 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 7 LowerBrule7 | 0 | 0 | 0 | 0 | — | — | Even |
| VTD-precinct 9 Kennebec9 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1896–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1896 | −19.7% |
| 1900 | −34.0% |
| 1904 | −50.7% |
| 1908 | −11.9% |
| 1912 | +39.8% |
| 1916 | +3.3% |
| 1920 | −33.3% |
| 1924 | −28.1% |
| 1928 | −9.8% |
| 1932 | +39.1% |
| 1936 | +9.5% |
| 1940 | −12.1% |
| 1944 | −15.8% |
| 1948 | −4.7% |
| 1952 | −40.2% |
| 1956 | −13.7% |
| 1960 | −15.6% |
| 1964 | +10.2% |
| 1968 | −22.9% |
| 1972 | −20.2% |
| 1976 | −3.5% |
| 1980 | −41.0% |
| 1984 | −40.0% |
| 1988 | −14.3% |
| 1992 | −12.4% |
| 1996 | −5.3% |
| 2000 | −28.4% |
| 2004 | −8.1% |
| 2008 | −11.2% |
| 2012 | −20.9% |
| 2016 | −42.8% |
| 2020 | −32.4% |
| 2024 | −39.5% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 22.3%290 | 72.7%944 | 1,299 |
| 2020 | R | 33.3%533 | 66.7%1,066 | 1,599 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 14 points more Democratic.
2,223 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
−31 net domestic migration · 2025
Net −443 over 2011–2025 · gain loss
Arrivals reported $45,417 in average income, against $64,202 for residents who stayed — 29% lower. (IRS SOI, 2022–23)
Where departures went households, 2022–23
- Brule 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 | +13 |
| 2012 | −58 |
| 2013 | +46 |
| 2014 | −45 |
| 2015 | −6 |
| 2016 | −13 |
| 2017 | −72 |
| 2018 | −114 |
| 2019 | −62 |
| 2021 | +25 |
| 2022 | −88 |
| 2023 | −30 |
| 2024 | −8 |
| 2025 | −31 |
Lyman County's roughly 3,900 residents are spread across more than 1,600 square miles of high plains and river breaks, and it has delivered Republican presidential margins above 35 points in each of the last several cycles.
Across the recorded series it reached a Democratic high of 39.8 points in 1912 and a Republican high of 50.7 points in 1904. Between 2020 and 2024 the county moved 7.1 points toward the Republican candidate; the 2024 margin was 39.5 points.
A population of 3,724, a 57% non-Hispanic-white share, and a median household income of $67,143 describe the county. The county's voting pattern over the last decade is most similar to that of Harding County and Charles Mix 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 →
Lyman County, South Dakota. Akashic. https://akashic.app/county/46085/. Accessed May 20, 2026. License: CC BY 4.0.