Buchanan County, Iowa
Precinct data
Results by precinct
14 precincts · 10,714 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Indep 3rd WardIndep 3rd Ward | 494 | 907 | 18 | 1,419 | 34.8% | 63.9% | R+29.1 |
|---|---|---|---|---|---|---|---|
| Precinct -JesupJesup | 436 | 801 | 15 | 1,252 | 34.8% | 64.0% | R+29.2 |
| Precinct -QuasquetonQuasqueton | 344 | 680 | 15 | 1,039 | 33.1% | 65.4% | R+32.3 |
| Precinct -Perry/WashingtonPerry/Washington | 346 | 645 | 11 | 1,002 | 34.5% | 64.4% | R+29.8 |
| Precinct -AuroraAurora | 221 | 472 | 12 | 705 | 31.3% | 67.0% | R+35.6 |
| Precinct -Indep 1st WardIndep 1st Ward | 267 | 418 | 13 | 698 | 38.3% | 59.9% | R+21.6 |
| Precinct -Indep 2nd WardIndep 2nd Ward | 270 | 355 | 9 | 634 | 42.6% | 56.0% | R+13.4 |
| Precinct -FairbankFairbank | 189 | 424 | 7 | 620 | 30.5% | 68.4% | R+37.9 |
| Precinct -Indep 5th WardIndep 5th Ward | 251 | 339 | 9 | 599 | 41.9% | 56.6% | R+14.7 |
| Precinct -RowleyRowley | 191 | 386 | 17 | 594 | 32.2% | 65.0% | R+32.8 |
| Precinct -WinthropWinthrop | 204 | 372 | 11 | 587 | 34.8% | 63.4% | R+28.6 |
| Precinct -Indep 4th WardIndep 4th Ward | 252 | 296 | 8 | 556 | 45.3% | 53.2% | R+7.9 |
| Precinct -HazletonHazleton | 162 | 374 | 3 | 539 | 30.1% | 69.4% | R+39.3 |
| Precinct -BrandonBrandon | 139 | 321 | 10 | 470 | 29.6% | 68.3% | R+38.7 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −6.9% |
| 1896 | −12.2% |
| 1900 | −17.4% |
| 1904 | −27.3% |
| 1908 | −14.5% |
| 1912 | +12.6% |
| 1916 | −24.6% |
| 1920 | −59.2% |
| 1924 | −42.5% |
| 1928 | −30.9% |
| 1932 | +6.3% |
| 1936 | +2.9% |
| 1940 | −9.5% |
| 1944 | −9.5% |
| 1948 | −2.1% |
| 1952 | −36.0% |
| 1956 | −22.1% |
| 1960 | −9.8% |
| 1964 | +27.6% |
| 1968 | −10.0% |
| 1972 | −18.4% |
| 1976 | −5.8% |
| 1980 | −15.2% |
| 1984 | −9.1% |
| 1988 | +15.4% |
| 1992 | +8.8% |
| 1996 | +21.8% |
| 2000 | +10.1% |
| 2004 | +7.7% |
| 2008 | +18.5% |
| 2012 | +13.9% |
| 2016 | −14.8% |
| 2020 | −20.9% |
| 2024 | −28.1% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 37.7%3,071 | 62.3%5,085 | 8,156 |
| 2020 | R | 40.1%4,292 | 56.7%6,063 | 10,699 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 21 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 14,692 | 4,791 | 3,272 | 6,625 | 4 |
| 2010 | 14,273 | 4,457 | 3,324 | 6,488 | 4 |
| 2012 | 14,444 | 4,198 | 3,384 | 6,856 | 6 |
| 2014 | 14,202 | 3,964 | 3,264 | 6,958 | 16 |
| 2016 | 14,162 | 3,816 | 3,452 | 6,860 | 34 |
| 2018 | 13,972 | 3,684 | 3,327 | 6,905 | 56 |
| 2020 | 14,227 | 3,978 | 3,985 | 6,202 | 62 |
| 2022 | 14,195 | 3,618 | 4,277 | 6,227 | 73 |
| 2024 | 14,195 | 3,403 | 4,454 | 6,248 | 90 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+116 net domestic migration · 2025
Net −530 over 2011–2025 · gain loss
Arrivals reported $56,540 in average income, against $83,194 for residents who stayed — 32% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+10.7 on average — 17 points more Democratic-leaning than Buchanan County, IA itself (R+28.1).
Where arrivals came from lean of each source
- Black Hawk County, IA99D+1.2
- Fayette County, IA54R+30.4
- Linn County, IA46D+9.9
- Benton County, IA21R+33.2
- Delaware County, IA20R+39.5
Where departures went households, 2022–23
- Black Hawk County, IA123
- Linn County, IA65
- Fayette County, IA62
- Delaware County, IA23
- Bremer County, IA21
- Johnson County, IA20
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 | −124 |
| 2012 | −14 |
| 2013 | −46 |
| 2014 | +32 |
| 2015 | −104 |
| 2016 | −191 |
| 2017 | +61 |
| 2018 | −20 |
| 2019 | −74 |
| 2021 | +37 |
| 2022 | −58 |
| 2023 | −54 |
| 2024 | −91 |
| 2025 | +116 |
Buchanan County's population of roughly 21,000 is anchored by Independence, the county seat, and sustained by agriculture and small manufacturing. Its R+28 margin in 2024 reflects a decades-long rural realignment that has outpaced neighboring counties.
Across the recorded series it reached a Democratic high of 27.6 points in 1964 and a Republican high of 59.2 points in 1920. Between 2020 and 2024 the county moved 7.2 points toward the Republican candidate; the 2024 margin was 28.1 points.
A population of 20,694, a 95% non-Hispanic-white share, and a median household income of $78,236 describe the county. The county's voting pattern over the last decade is most similar to that of Jackson 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 →
Buchanan County, Iowa. Akashic. https://akashic.app/county/19019/. Accessed May 20, 2026. License: CC BY 4.0.