Benton County, Iowa
Precinct data
Results by precinct
18 precincts · 14,470 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Precinct FrPrecinct Fr | 616 | 1,069 | 35 | 1,720 | 35.8% | 62.2% | R+26.3 |
|---|---|---|---|---|---|---|---|
| Precinct -Precinct BnPrecinct Bn | 537 | 1,086 | 12 | 1,635 | 32.8% | 66.4% | R+33.6 |
| Precinct -Precinct PoPrecinct Po | 481 | 900 | 17 | 1,398 | 34.4% | 64.4% | R+30.0 |
| Precinct -Precinct EdPrecinct Ed | 339 | 908 | 9 | 1,256 | 27.0% | 72.3% | R+45.3 |
| Precinct -Precinct IaPrecinct Ia | 251 | 632 | 8 | 891 | 28.2% | 70.9% | R+42.8 |
| Precinct -Precinct FlPrecinct Fl | 267 | 533 | 6 | 806 | 33.1% | 66.1% | R+33.0 |
| Precinct -Precinct BgPrecinct Bg | 213 | 478 | 9 | 700 | 30.4% | 68.3% | R+37.9 |
| Precinct -Precinct Vt3Precinct Vt3 | 263 | 407 | 18 | 688 | 38.2% | 59.2% | R+20.9 |
| Precinct -Precinct ElPrecinct El | 243 | 432 | 10 | 685 | 35.5% | 63.1% | R+27.6 |
| Precinct -Precinct Vt4Precinct Vt4 | 237 | 428 | 7 | 672 | 35.3% | 63.7% | R+28.4 |
| Precinct -Precinct Vt1Precinct Vt1 | 259 | 380 | 10 | 649 | 39.9% | 58.6% | R+18.6 |
| Precinct -Precinct BrPrecinct Br | 136 | 457 | 5 | 598 | 22.7% | 76.4% | R+53.7 |
| Precinct -Precinct HoPrecinct Ho | 143 | 449 | 6 | 598 | 23.9% | 75.1% | R+51.2 |
| Precinct -Precinct WaPrecinct Wa | 228 | 342 | 7 | 577 | 39.5% | 59.3% | R+19.8 |
| Precinct -Precinct Vt2Precinct Vt2 | 156 | 303 | 12 | 471 | 33.1% | 64.3% | R+31.2 |
| Precinct -Precinct Bp3Precinct Bp3 | 141 | 261 | 4 | 406 | 34.7% | 64.3% | R+29.6 |
| Precinct -Precinct Bp1Precinct Bp1 | 122 | 270 | 4 | 396 | 30.8% | 68.2% | R+37.4 |
| Precinct -Precinct Bp2Precinct Bp2 | 107 | 214 | 3 | 324 | 33.0% | 66.0% | R+33.0 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +0.9% |
| 1896 | −16.7% |
| 1900 | −16.3% |
| 1904 | −26.3% |
| 1908 | −13.2% |
| 1912 | +11.0% |
| 1916 | −10.8% |
| 1920 | −45.6% |
| 1924 | −42.2% |
| 1928 | −26.1% |
| 1932 | +26.9% |
| 1936 | +14.7% |
| 1940 | +0.6% |
| 1944 | +2.7% |
| 1948 | +5.2% |
| 1952 | −23.2% |
| 1956 | −16.9% |
| 1960 | −12.8% |
| 1964 | +31.3% |
| 1968 | −11.1% |
| 1972 | −10.2% |
| 1976 | +4.7% |
| 1980 | −10.4% |
| 1984 | −5.4% |
| 1988 | +18.7% |
| 1992 | +9.6% |
| 1996 | +16.6% |
| 2000 | +3.8% |
| 2004 | +0.7% |
| 2008 | +4.5% |
| 2012 | −0.6% |
| 2016 | −25.4% |
| 2020 | −27.5% |
| 2024 | −33.2% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 33.8%3,823 | 66.2%7,502 | 11,325 |
| 2020 | R | 35.9%5,202 | 61.0%8,830 | 14,483 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 13 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 18,171 | 5,464 | 4,886 | 7,815 | 6 |
| 2010 | 18,399 | 5,248 | 5,230 | 7,910 | 11 |
| 2012 | 18,285 | 5,024 | 5,333 | 7,913 | 15 |
| 2014 | 18,110 | 4,679 | 5,229 | 8,167 | 35 |
| 2016 | 18,283 | 4,324 | 6,196 | 7,693 | 70 |
| 2018 | 18,034 | 4,180 | 5,946 | 7,801 | 107 |
| 2020 | 18,360 | 4,525 | 6,502 | 7,198 | 135 |
| 2022 | 18,589 | 4,200 | 6,734 | 7,519 | 136 |
| 2024 | 18,722 | 3,694 | 7,405 | 7,476 | 147 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+131 net domestic migration · 2025
Net −565 over 2011–2025 · gain loss
Arrivals reported $56,633 in average income, against $86,231 for residents who stayed — 34% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+8.2 on average — 41 points more Democratic-leaning than Benton County, IA itself (R+33.2).
Where arrivals came from lean of each source
- Linn County, IA302D+9.9
- Iowa County, IA35R+27.7
- Johnson County, IA34D+37.8
- Black Hawk County, IA33D+1.2
Where departures went households, 2022–23
- Linn County, IA263
- Black Hawk County, IA46
- Iowa County, IA39
- Johnson County, IA36
- Tama County, IA29
- Buchanan County, IA21
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 | −37 |
| 2012 | −318 |
| 2013 | −183 |
| 2014 | −149 |
| 2015 | −104 |
| 2016 | −43 |
| 2017 | −77 |
| 2018 | −50 |
| 2019 | −1 |
| 2021 | +205 |
| 2022 | −6 |
| 2023 | +25 |
| 2024 | +42 |
| 2025 | +131 |
Benton County's largely agricultural economy and small-town demographics have pushed its presidential margins steadily rightward over the past decade, reaching R+33 in 2024—roughly double the gap recorded in 2012.
Across the recorded series it reached a Democratic high of 31.3 points in 1964 and a Republican high of 45.6 points in 1920. Between 2020 and 2024 the county moved 5.6 points toward the Republican candidate; the 2024 margin was 33.2 points.
A population of 25,724, a 94% non-Hispanic-white share, and a median household income of $86,962 describe the county. The county's voting pattern over the last decade is most similar to that of Boone County and Buchanan 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 →
Benton County, Iowa. Akashic. https://akashic.app/county/19011/. Accessed May 20, 2026. License: CC BY 4.0.