Clarke County, Iowa
Precinct data
Results by precinct
7 precincts · 4,459 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -NORTH PRECINCTNORTH PRECINCT | 173 | 593 | 12 | 778 | 22.2% | 76.2% | R+54.0 |
|---|---|---|---|---|---|---|---|
| Precinct -MURRAY PRECINCTMURRAY PRECINCT | 166 | 540 | 12 | 718 | 23.1% | 75.2% | R+52.1 |
| Precinct -OSCEOLA 3RD WARDOSCEOLA 3RD WARD | 241 | 419 | 9 | 669 | 36.0% | 62.6% | R+26.6 |
| Precinct -OSCEOLA 1ST WARDOSCEOLA 1ST WARD | 241 | 396 | 8 | 645 | 37.4% | 61.4% | R+24.0 |
| Precinct -OSCEOLA 2ND WARDOSCEOLA 2ND WARD | 186 | 409 | 7 | 602 | 30.9% | 67.9% | R+37.0 |
| Precinct -WOODBURN PRECINCTWOODBURN PRECINCT | 148 | 409 | 2 | 559 | 26.5% | 73.2% | R+46.7 |
| Precinct -MIDDLE PRECINCTMIDDLE PRECINCT | 110 | 374 | 4 | 488 | 22.5% | 76.6% | R+54.1 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −18.4% |
| 1896 | −4.0% |
| 1900 | −15.1% |
| 1904 | −32.4% |
| 1908 | −17.5% |
| 1912 | +1.1% |
| 1916 | −12.1% |
| 1920 | −42.5% |
| 1924 | −37.2% |
| 1928 | −25.3% |
| 1932 | +18.2% |
| 1936 | +0.8% |
| 1940 | −8.1% |
| 1944 | −14.3% |
| 1948 | −2.1% |
| 1952 | −31.9% |
| 1956 | −12.1% |
| 1960 | −15.9% |
| 1964 | +26.4% |
| 1968 | −10.1% |
| 1972 | −16.0% |
| 1976 | +14.4% |
| 1980 | −18.2% |
| 1984 | −5.4% |
| 1988 | +16.0% |
| 1992 | +11.8% |
| 1996 | +16.6% |
| 2000 | +2.3% |
| 2004 | +2.7% |
| 2008 | +2.3% |
| 2012 | +1.5% |
| 2016 | −27.7% |
| 2020 | −35.9% |
| 2024 | −41.9% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 30.1%1,005 | 69.9%2,332 | 3,337 |
| 2020 | R | 33.0%1,520 | 63.1%2,906 | 4,605 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 19 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 6,265 | 2,036 | 1,701 | 2,526 | 2 |
| 2010 | 6,281 | 1,831 | 1,845 | 2,601 | 4 |
| 2012 | 6,367 | 1,811 | 1,953 | 2,599 | 4 |
| 2014 | 6,183 | 1,686 | 1,927 | 2,560 | 10 |
| 2016 | 6,113 | 1,663 | 1,976 | 2,452 | 22 |
| 2018 | 6,007 | 1,533 | 2,071 | 2,371 | 32 |
| 2020 | 6,241 | 1,581 | 2,455 | 2,148 | 57 |
| 2022 | 6,178 | 1,470 | 2,513 | 2,147 | 48 |
| 2024 | 6,236 | 1,309 | 2,742 | 2,114 | 71 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−26 net domestic migration · 2025
Net −417 over 2011–2025 · gain loss
Arrivals reported $48,469 in average income, against $65,867 for residents who stayed — 26% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+9.8 on average — 32 points more Democratic-leaning than Clarke County, IA itself (R+41.9).
Where arrivals came from lean of each source
- Polk County, IA54D+10.8
- Decatur County, IA30R+46.9
Where departures went households, 2022–23
- Polk County, IA53
- Decatur County, IA36
- Warren County, IA25
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 | −7 |
| 2012 | +27 |
| 2013 | −129 |
| 2014 | −59 |
| 2015 | −11 |
| 2016 | +28 |
| 2017 | +51 |
| 2018 | +69 |
| 2019 | −142 |
| 2021 | +25 |
| 2022 | −102 |
| 2023 | −42 |
| 2024 | −99 |
| 2025 | −26 |
Clarke County's small-town and agricultural character has pushed its presidential margins steadily rightward over the past decade, hitting R+41.9 in 2024 — a spread that reflects broader rural Iowa's sharp partisan realignment.
Across the recorded series it reached a Democratic high of 26.4 points in 1964 and a Republican high of 42.5 points in 1920. Between 2020 and 2024 the county moved 5.9 points toward the Republican candidate; the 2024 margin was 41.9 points.
A population of 9,662, a 78% non-Hispanic-white share, and a median household income of $71,641 describe the county. The county's voting pattern over the last decade is most similar to that of Wapello County and Houston 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 →
Clarke County, Iowa. Akashic. https://akashic.app/county/19039/. Accessed May 20, 2026. License: CC BY 4.0.