Monona County, Iowa
Precinct data
Results by precinct
10 precincts · 4,616 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Cooper Maple MapletonCooper Maple Mapleton | 230 | 617 | 9 | 856 | 26.9% | 72.1% | R+45.2 |
|---|---|---|---|---|---|---|---|
| Precinct -Fairview Grant Lake Lincoln Rodney West Fork WhitingFairview Grant Lake Lincoln Rodney West Fork Whiting | 172 | 646 | 9 | 827 | 20.8% | 78.1% | R+57.3 |
| Precinct -Jordan Moorhead Soldier Soldier City Spring Valley WillowJordan Moorhead Soldier Soldier City Spring Valley Willow | 141 | 356 | 8 | 505 | 27.9% | 70.5% | R+42.6 |
| Precinct -Sherman Franklin Sioux BlencoeSherman Franklin Sioux Blencoe | 118 | 284 | 2 | 404 | 29.2% | 70.3% | R+41.1 |
| Precinct -Ashton Belvidere Castana Center Kennebec TurinAshton Belvidere Castana Center Kennebec Turin | 106 | 289 | 4 | 399 | 26.6% | 72.4% | R+45.9 |
| Precinct -Onawa Ward 3Onawa Ward 3 | 119 | 250 | 5 | 374 | 31.8% | 66.8% | R+35.0 |
| Precinct -Onawa Ward 2Onawa Ward 2 | 123 | 243 | 3 | 369 | 33.3% | 65.9% | R+32.5 |
| Precinct -Onawa Ward 4Onawa Ward 4 | 84 | 222 | 2 | 308 | 27.3% | 72.1% | R+44.8 |
| Precinct -Onawa Ward 1Onawa Ward 1 | 76 | 211 | 3 | 290 | 26.2% | 72.8% | R+46.6 |
| Precinct -St Clair UteSt Clair Ute | 67 | 213 | 4 | 284 | 23.6% | 75.0% | R+51.4 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −13.9% |
| 1896 | +24.9% |
| 1900 | −5.4% |
| 1904 | −35.9% |
| 1908 | −6.5% |
| 1912 | +6.5% |
| 1916 | +3.6% |
| 1920 | −39.7% |
| 1924 | −30.7% |
| 1928 | −13.7% |
| 1932 | +43.0% |
| 1936 | +27.5% |
| 1940 | +6.6% |
| 1944 | +2.4% |
| 1948 | +12.5% |
| 1952 | −24.8% |
| 1956 | −5.1% |
| 1960 | −9.3% |
| 1964 | +28.5% |
| 1968 | −14.2% |
| 1972 | −19.1% |
| 1976 | +0.5% |
| 1980 | −30.4% |
| 1984 | −11.8% |
| 1988 | +7.6% |
| 1992 | +5.8% |
| 1996 | +6.6% |
| 2000 | −4.8% |
| 2004 | −3.5% |
| 2008 | −2.4% |
| 2012 | −9.6% |
| 2016 | −40.5% |
| 2020 | −38.9% |
| 2024 | −45.2% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 27.0%879 | 73.0%2,376 | 3,255 |
| 2020 | R | 31.3%1,455 | 65.6%3,054 | 4,656 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 17 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 6,965 | 2,477 | 1,946 | 2,541 | 1 |
| 2010 | 6,892 | 2,349 | 1,988 | 2,554 | 1 |
| 2012 | 6,865 | 2,242 | 2,025 | 2,595 | 3 |
| 2014 | 6,678 | 2,080 | 2,007 | 2,584 | 7 |
| 2016 | 6,464 | 1,861 | 2,205 | 2,379 | 19 |
| 2018 | 6,224 | 1,674 | 2,184 | 2,324 | 42 |
| 2020 | 6,353 | 1,682 | 2,618 | 2,001 | 52 |
| 2022 | 6,272 | 1,531 | 2,715 | 1,970 | 56 |
| 2024 | 5,784 | 1,260 | 2,873 | 1,595 | 56 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+64 net domestic migration · 2025
Net −133 over 2011–2025 · gain loss
Arrivals reported $52,129 in average income, against $77,685 for residents who stayed — 33% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+22.9 on average — 22 points more Democratic-leaning than Monona County, IA itself (R+45.2).
Where arrivals came from lean of each source
- Woodbury County, IA65R+22.9
Where departures went households, 2022–23
- Woodbury County, IA69
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 | +53 |
| 2012 | −88 |
| 2013 | +5 |
| 2014 | −46 |
| 2015 | +11 |
| 2016 | −15 |
| 2017 | −10 |
| 2018 | −28 |
| 2019 | +7 |
| 2021 | −61 |
| 2022 | −26 |
| 2023 | +38 |
| 2024 | −37 |
| 2025 | +64 |
Monona County's electorate has moved sharply rightward over the past two decades, and its 2024 presidential margin of R+45 points reflects a broader rural realignment that has reshaped Iowa's western tier of counties.
Across the recorded series it reached a Democratic high of 43.0 points in 1932 and a Republican high of 45.2 points in 2024. Between 2020 and 2024 the county moved 6.2 points toward the Republican candidate; the 2024 margin was 45.2 points.
A population of 8,557, a 93% non-Hispanic-white share, and a median household income of $68,377 describe the county. The county's voting pattern over the last decade is most similar to that of Adair County and Palo Alto 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 →
Monona County, Iowa. Akashic. https://akashic.app/county/19133/. Accessed May 20, 2026. License: CC BY 4.0.