Jackson County, Iowa
Precinct data
Results by precinct
13 precincts · 10,782 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Pct 1Pct 1 | 659 | 1,083 | 21 | 1,763 | 37.4% | 61.4% | R+24.0 |
|---|---|---|---|---|---|---|---|
| Precinct -Pct 7Pct 7 | 336 | 1,124 | 14 | 1,474 | 22.8% | 76.3% | R+53.5 |
| Precinct -Pct 2Pct 2 | 375 | 877 | 15 | 1,267 | 29.6% | 69.2% | R+39.6 |
| Precinct -Pct 6Pct 6 | 381 | 833 | 10 | 1,224 | 31.1% | 68.1% | R+36.9 |
| Precinct -Pct 3Pct 3 | 250 | 515 | 10 | 775 | 32.3% | 66.5% | R+34.2 |
| Precinct -Pct 13Pct 13 | 312 | 415 | 12 | 739 | 42.2% | 56.2% | R+13.9 |
| Precinct -Pct 4Pct 4 | 188 | 474 | 10 | 672 | 28.0% | 70.5% | R+42.6 |
| Precinct -Pct 12Pct 12 | 255 | 347 | 9 | 611 | 41.7% | 56.8% | R+15.1 |
| Precinct -Pct 9Pct 9 | 208 | 292 | 7 | 507 | 41.0% | 57.6% | R+16.6 |
| Precinct -Pct 10Pct 10 | 200 | 267 | 12 | 479 | 41.8% | 55.7% | R+14.0 |
| Precinct -Pct 11Pct 11 | 184 | 278 | 9 | 471 | 39.1% | 59.0% | R+20.0 |
| Precinct -Pct 5Pct 5 | 114 | 298 | 6 | 418 | 27.3% | 71.3% | R+44.0 |
| Precinct -Pct 8Pct 8 | 105 | 271 | 6 | 382 | 27.5% | 70.9% | R+43.5 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +20.4% |
| 1896 | −6.1% |
| 1900 | −1.9% |
| 1904 | −7.5% |
| 1908 | +0.1% |
| 1912 | +22.6% |
| 1916 | −7.2% |
| 1920 | −40.1% |
| 1924 | −22.2% |
| 1928 | −11.9% |
| 1932 | +25.9% |
| 1936 | +14.8% |
| 1940 | −12.4% |
| 1944 | −10.2% |
| 1948 | −4.8% |
| 1952 | −30.6% |
| 1956 | −26.9% |
| 1960 | −7.8% |
| 1964 | +25.2% |
| 1968 | −13.1% |
| 1972 | −14.2% |
| 1976 | +2.8% |
| 1980 | −11.0% |
| 1984 | −4.4% |
| 1988 | +19.8% |
| 1992 | +18.8% |
| 1996 | +21.1% |
| 2000 | +13.0% |
| 2004 | +14.1% |
| 2008 | +24.4% |
| 2012 | +16.9% |
| 2016 | −18.9% |
| 2020 | −26.1% |
| 2024 | −32.5% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 36.9%2,816 | 63.1%4,816 | 7,632 |
| 2020 | R | 39.0%4,249 | 56.6%6,175 | 10,908 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 23 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 14,952 | 6,644 | 2,615 | 5,685 | 8 |
| 2010 | 15,234 | 6,707 | 2,700 | 5,816 | 11 |
| 2012 | 15,352 | 6,213 | 2,854 | 6,269 | 16 |
| 2014 | 14,979 | 5,725 | 2,986 | 6,250 | 18 |
| 2016 | 15,007 | 5,400 | 3,372 | 6,199 | 36 |
| 2018 | 14,835 | 5,077 | 3,262 | 6,454 | 42 |
| 2020 | 14,927 | 5,322 | 4,273 | 5,277 | 55 |
| 2022 | 14,739 | 4,692 | 4,609 | 5,380 | 58 |
| 2024 | 14,735 | 3,945 | 5,346 | 5,369 | 75 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−37 net domestic migration · 2025
Net −315 over 2011–2025 · gain loss
Arrivals reported $52,824 in average income, against $83,030 for residents who stayed — 36% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+12.6 on average — 20 points more Democratic-leaning than Jackson County, IA itself (R+32.5).
Where arrivals came from lean of each source
- Dubuque County, IA96R+8.6
- Clinton County, IA94R+18.8
- Scott County, IA22R+3.9
Where departures went households, 2022–23
- Dubuque County, IA89
- Clinton County, IA80
- Scott County, IA38
- Linn County, IA23
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 | −65 |
| 2012 | −14 |
| 2013 | −143 |
| 2014 | −85 |
| 2015 | −30 |
| 2016 | +2 |
| 2017 | −42 |
| 2018 | +63 |
| 2019 | +20 |
| 2021 | +1 |
| 2022 | −15 |
| 2023 | +4 |
| 2024 | +26 |
| 2025 | −37 |
Jackson County's working-class river towns and agricultural hinterland have tracked a steady rightward shift over 15 years, with the 2024 presidential margin reaching R+32.5 — roughly double what it recorded in the early Obama era.
Across the recorded series it reached a Democratic high of 25.9 points in 1932 and a Republican high of 40.1 points in 1920. Between 2020 and 2024 the county moved 6.3 points toward the Republican candidate; the 2024 margin was 32.5 points.
A population of 19,390, a 94% non-Hispanic-white share, and a median household income of $74,186 describe the county. The county's voting pattern over the last decade is most similar to that of Buchanan County and Floyd 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 →
Jackson County, Iowa. Akashic. https://akashic.app/county/19097/. Accessed May 20, 2026. License: CC BY 4.0.