Henry County, Iowa
Precinct data
Results by precinct
9 precincts · 9,574 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Precinct 3Precinct 3 | 423 | 1,144 | 19 | 1,586 | 26.7% | 72.1% | R+45.5 |
|---|---|---|---|---|---|---|---|
| Precinct -Precinct 1Precinct 1 | 392 | 1,112 | 19 | 1,523 | 25.7% | 73.0% | R+47.3 |
| Precinct -Precinct 9Precinct 9 | 407 | 833 | 20 | 1,260 | 32.3% | 66.1% | R+33.8 |
| Precinct -Precinct 2Precinct 2 | 289 | 653 | 5 | 947 | 30.5% | 69.0% | R+38.4 |
| Precinct -Precinct 6-MP3Precinct 6-MP3 | 365 | 549 | 23 | 937 | 39.0% | 58.6% | R+19.6 |
| Precinct -Precinct 8Precinct 8 | 229 | 657 | 10 | 896 | 25.6% | 73.3% | R+47.8 |
| Precinct -Precinct 4-MP1Precinct 4-MP1 | 321 | 558 | 16 | 895 | 35.9% | 62.3% | R+26.5 |
| Precinct -Precinct 7-MP4Precinct 7-MP4 | 282 | 480 | 14 | 776 | 36.3% | 61.9% | R+25.5 |
| Precinct -Precinct 5-MP2Precinct 5-MP2 | 287 | 453 | 14 | 754 | 38.1% | 60.1% | R+22.0 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −15.5% |
| 1896 | −13.7% |
| 1900 | −18.3% |
| 1904 | −33.8% |
| 1908 | −24.0% |
| 1912 | −2.0% |
| 1916 | −17.4% |
| 1920 | −45.4% |
| 1924 | −43.8% |
| 1928 | −42.7% |
| 1932 | +13.9% |
| 1936 | −11.3% |
| 1940 | −34.9% |
| 1944 | −30.8% |
| 1948 | −20.2% |
| 1952 | −44.6% |
| 1956 | −37.1% |
| 1960 | −32.1% |
| 1964 | +13.0% |
| 1968 | −27.2% |
| 1972 | −29.7% |
| 1976 | +0.4% |
| 1980 | −13.2% |
| 1984 | −14.3% |
| 1988 | −2.5% |
| 1992 | +1.3% |
| 1996 | +3.9% |
| 2000 | −6.6% |
| 2004 | −11.6% |
| 2008 | −5.0% |
| 2012 | −5.9% |
| 2016 | −30.3% |
| 2020 | −32.4% |
| 2024 | −35.9% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 32.9%2,261 | 67.1%4,602 | 6,863 |
| 2020 | R | 35.4%3,457 | 60.2%5,875 | 9,758 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 11 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 14,234 | 3,548 | 5,058 | 5,627 | 1 |
| 2010 | 14,303 | 3,463 | 5,112 | 5,725 | 3 |
| 2012 | 14,669 | 3,345 | 5,686 | 5,629 | 9 |
| 2014 | 14,106 | 3,122 | 5,442 | 5,521 | 21 |
| 2016 | 14,463 | 3,193 | 5,541 | 5,678 | 51 |
| 2018 | 13,766 | 2,926 | 5,320 | 5,448 | 72 |
| 2020 | 13,889 | 3,178 | 5,737 | 4,873 | 101 |
| 2022 | 14,151 | 2,963 | 5,830 | 5,243 | 115 |
| 2024 | 13,535 | 2,532 | 5,841 | 5,044 | 118 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+48 net domestic migration · 2025
Net −1,295 over 2011–2025 · gain loss
Arrivals reported $47,074 in average income, against $71,314 for residents who stayed — 34% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+17.6 on average — 18 points more Democratic-leaning than Henry County, IA itself (R+35.9).
Where arrivals came from lean of each source
- Des Moines County, IA60R+15.0
- Washington County, IA36R+24.4
- Jefferson County, IA32R+6.8
- Lee County, IA26R+27.7
Where departures went households, 2022–23
- Des Moines County, IA76
- Johnson County, IA48
- Washington County, IA36
- Linn County, IA28
- Lee County, IA27
- Jefferson County, IA22
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 | +129 |
| 2012 | −274 |
| 2013 | −5 |
| 2014 | −221 |
| 2015 | −30 |
| 2016 | −53 |
| 2017 | +191 |
| 2018 | −60 |
| 2019 | −117 |
| 2021 | +40 |
| 2022 | −52 |
| 2023 | −688 |
| 2024 | −203 |
| 2025 | +48 |
Henry County's blend of small manufacturing towns and agricultural land has tracked a steady rightward shift over two decades, with 2024's R+35.9 margin reflecting a pattern consistent across Iowa's non-metro southeast corridor.
Across the recorded series it reached a Democratic high of 13.9 points in 1932 and a Republican high of 45.4 points in 1920. Between 2020 and 2024 the county moved 3.5 points toward the Republican candidate; the 2024 margin was 35.9 points.
A population of 20,004, a 86% non-Hispanic-white share, and a median household income of $67,436 describe the county. The county's voting pattern over the last decade is most similar to that of Adair County and Lucas 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 →
Henry County, Iowa. Akashic. https://akashic.app/county/19087/. Accessed May 20, 2026. License: CC BY 4.0.