Woodbury County, Iowa
Precinct data
Results by precinct
44 precincts · 42,674 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -28 SC28 SC | 838 | 1,649 | 30 | 2,517 | 33.3% | 65.5% | R+32.2 |
|---|---|---|---|---|---|---|---|
| Precinct -29 SC29 SC | 718 | 1,202 | 31 | 1,951 | 36.8% | 61.6% | R+24.8 |
| Precinct -12 SC12 SC | 644 | 994 | 20 | 1,658 | 38.8% | 60.0% | R+21.1 |
| Precinct -30 SGT BLUFF WEST30 SGT BLUFF WEST | 535 | 1,073 | 19 | 1,627 | 32.9% | 65.9% | R+33.1 |
| Precinct -25 SC25 SC | 644 | 901 | 21 | 1,566 | 41.1% | 57.5% | R+16.4 |
| Precinct -17 LAWTON/BANNER-CONCORD17 LAWTON/BANNER-CONCORD | 308 | 1,198 | 16 | 1,522 | 20.2% | 78.7% | R+58.5 |
| Precinct -34 MOVILLE/ARLINGTON-MOVILLE-WOLF CREEK34 MOVILLE/ARLINGTON-MOVILLE-WOLF CREEK | 363 | 1,143 | 12 | 1,518 | 23.9% | 75.3% | R+51.4 |
| Precinct -27 SC27 SC | 560 | 895 | 20 | 1,475 | 38.0% | 60.7% | R+22.7 |
| Precinct -02 SC02 SC | 607 | 824 | 22 | 1,453 | 41.8% | 56.7% | R+14.9 |
| Precinct -18 SC18 SC | 635 | 758 | 17 | 1,410 | 45.0% | 53.8% | R+8.7 |
| Precinct -14 SC14 SC | 570 | 750 | 21 | 1,341 | 42.5% | 55.9% | R+13.4 |
| Precinct -15 SC15 SC | 513 | 796 | 26 | 1,335 | 38.4% | 59.6% | R+21.2 |
| Precinct -26 SC26 SC | 501 | 745 | 22 | 1,268 | 39.5% | 58.8% | R+19.2 |
| Precinct -04 SC04 SC | 574 | 663 | 19 | 1,256 | 45.7% | 52.8% | R+7.1 |
| Precinct -01 SC01 SC | 544 | 698 | 10 | 1,252 | 43.5% | 55.8% | R+12.3 |
| Precinct -24 SC24 SC | 491 | 710 | 18 | 1,219 | 40.3% | 58.2% | R+18.0 |
| Precinct -13 SC13 SC | 525 | 611 | 21 | 1,157 | 45.4% | 52.8% | R+7.4 |
| Precinct -23 SC23 SC | 500 | 635 | 16 | 1,151 | 43.4% | 55.2% | R+11.7 |
| Precinct -19 SC19 SC | 516 | 558 | 9 | 1,083 | 47.6% | 51.5% | R+3.9 |
| Precinct -05 SC05 SC | 576 | 473 | 11 | 1,060 | 54.3% | 44.6% | D+9.7 |
| Precinct -31 SGT BLUFF EAST31 SGT BLUFF EAST | 321 | 688 | 16 | 1,025 | 31.3% | 67.1% | R+35.8 |
| Precinct -03 SC03 SC | 440 | 562 | 19 | 1,021 | 43.1% | 55.0% | R+11.9 |
| Precinct -22 SC22 SC | 373 | 555 | 6 | 934 | 39.9% | 59.4% | R+19.5 |
| Precinct -07 SC07 SC | 486 | 385 | 11 | 882 | 55.1% | 43.7% | D+11.5 |
| Precinct -32 WOODBURY TOWNSHIP32 WOODBURY TOWNSHIP | 203 | 658 | 15 | 876 | 23.2% | 75.1% | R+51.9 |
| Precinct -21 SC21 SC | 316 | 526 | 9 | 851 | 37.1% | 61.8% | R+24.7 |
| Precinct -42 SLOAN/SLOAN-LAKEPORT42 SLOAN/SLOAN-LAKEPORT | 190 | 600 | 12 | 802 | 23.7% | 74.8% | R+51.1 |
| Precinct -37 BRONSON/FLOYD-GRANGE37 BRONSON/FLOYD-GRANGE | 138 | 494 | 12 | 644 | 21.4% | 76.7% | R+55.3 |
| Precinct -20 SC20 SC | 362 | 253 | 8 | 623 | 58.1% | 40.6% | D+17.5 |
| Precinct -36 CORRECTIONVILLE/KEDRON-UNION36 CORRECTIONVILLE/KEDRON-UNION | 131 | 459 | 9 | 599 | 21.9% | 76.6% | R+54.8 |
| Precinct -33 SALIX/LIBERTY33 SALIX/LIBERTY | 158 | 426 | 8 | 592 | 26.7% | 72.0% | R+45.3 |
| Precinct -06 SC06 SC | 307 | 261 | 7 | 575 | 53.4% | 45.4% | D+8.0 |
| Precinct -08 SC08 SC | 311 | 231 | 9 | 551 | 56.4% | 41.9% | D+14.5 |
| Precinct -16 SC16 SC | 212 | 306 | 8 | 526 | 40.3% | 58.2% | R+17.9 |
| Precinct -40 ANTHON/GRANT-MILLER40 ANTHON/GRANT-MILLER | 97 | 372 | 6 | 475 | 20.4% | 78.3% | R+57.9 |
| Precinct -10 SC10 SC | 222 | 234 | 5 | 461 | 48.2% | 50.8% | R+2.6 |
| Precinct -39 HORNICK/WILLOW-WEST FORK39 HORNICK/WILLOW-WEST FORK | 84 | 359 | 4 | 447 | 18.8% | 80.3% | R+61.5 |
| Precinct -41 DANBURY/MORGAN-LISTON41 DANBURY/MORGAN-LISTON | 67 | 308 | 2 | 377 | 17.8% | 81.7% | R+63.9 |
| Precinct -11 SC11 SC | 205 | 153 | 2 | 360 | 56.9% | 42.5% | D+14.4 |
| Precinct -35 PIERSON/RUTLAND35 PIERSON/RUTLAND | 75 | 234 | 2 | 311 | 24.1% | 75.2% | R+51.1 |
| Precinct -09 SC09 SC | 186 | 119 | 0 | 305 | 61.0% | 39.0% | D+22.0 |
| Precinct -43 SMITHLAND/LITTLE SIOUX43 SMITHLAND/LITTLE SIOUX | 39 | 205 | 4 | 248 | 15.7% | 82.7% | R+66.9 |
| Precinct -38 CUSHING/ROCK38 CUSHING/ROCK | 39 | 203 | 3 | 245 | 15.9% | 82.9% | R+66.9 |
| Precinct -44 OTO/OTO44 OTO/OTO | 21 | 102 | 2 | 125 | 16.8% | 81.6% | R+64.8 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −4.7% |
| 1896 | −11.7% |
| 1900 | −18.4% |
| 1904 | −42.1% |
| 1908 | −11.1% |
| 1912 | +16.2% |
| 1916 | +20.8% |
| 1920 | −27.5% |
| 1924 | −31.2% |
| 1928 | −10.0% |
| 1932 | +34.1% |
| 1936 | +29.5% |
| 1940 | +3.4% |
| 1944 | +4.9% |
| 1948 | +13.8% |
| 1952 | −17.1% |
| 1956 | −11.9% |
| 1960 | −10.1% |
| 1964 | +21.5% |
| 1968 | −6.9% |
| 1972 | −16.4% |
| 1976 | −7.4% |
| 1980 | −17.6% |
| 1984 | −9.6% |
| 1988 | +3.5% |
| 1992 | −1.7% |
| 1996 | +2.3% |
| 2000 | −3.1% |
| 2004 | −2.3% |
| 2008 | −0.5% |
| 2012 | +1.0% |
| 2016 | −19.3% |
| 2020 | −15.5% |
| 2024 | −22.9% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 36.4%10,409 | 63.6%18,161 | 28,570 |
| 2020 | R | 42.0%18,674 | 54.4%24,175 | 44,472 |
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 | 66,658 | 22,119 | 19,359 | 25,166 | 14 |
| 2010 | 63,150 | 21,265 | 19,456 | 22,366 | 63 |
| 2012 | 65,041 | 21,613 | 20,932 | 22,415 | 81 |
| 2014 | 62,138 | 20,268 | 20,331 | 21,384 | 155 |
| 2016 | 62,991 | 19,907 | 21,830 | 20,957 | 297 |
| 2018 | 62,757 | 19,441 | 21,274 | 21,554 | 488 |
| 2020 | 65,549 | 20,741 | 24,372 | 19,917 | 519 |
| 2022 | 64,327 | 19,104 | 23,729 | 20,939 | 555 |
| 2024 | 64,520 | 17,831 | 24,124 | 21,929 | 636 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−739 net domestic migration · 2025
Net −9,277 over 2011–2025 · gain loss
Arrivals reported $48,166 in average income, against $74,050 for residents who stayed — 35% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+28.1 on average — 5.2 points more Republican-leaning than Woodbury County, IA itself (R+22.9).
Where arrivals came from lean of each source
- Dakota County, NE267R+29.7
- Plymouth County, IA168R+54.1
- Union County, SD134R+40.7
- Douglas County, NE73D+10.1
- Monona County, IA69R+45.2
- Minnehaha County, SD53R+12.7
Where departures went households, 2022–23
- Dakota County, NE229
- Plymouth County, IA178
- Union County, SD177
- Douglas County, NE118
- Minnehaha County, SD95
- Polk County, IA94
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 | −463 |
| 2012 | −1,195 |
| 2013 | −837 |
| 2014 | −833 |
| 2015 | −511 |
| 2016 | −646 |
| 2017 | −1,205 |
| 2018 | −197 |
| 2019 | +7 |
| 2021 | −548 |
| 2022 | −921 |
| 2023 | −358 |
| 2024 | −831 |
| 2025 | −739 |
Woodbury County anchors Iowa's western edge along the Missouri River, with Sioux City as its urban core. Once a presidential battleground, it has moved roughly 30 points toward Republicans over the past three election cycles.
Across the recorded series it reached a Democratic high of 34.1 points in 1932 and a Republican high of 42.1 points in 1904. Between 2020 and 2024 the county moved 7.4 points toward the Republican candidate; the 2024 margin was 22.9 points.
A population of 106,247, a 67% non-Hispanic-white share, and a median household income of $73,658 describe the county. The county's voting pattern over the last decade is most similar to that of Marshall County and Mower 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 →
Woodbury County, Iowa. Akashic. https://akashic.app/county/19193/. Accessed May 20, 2026. License: CC BY 4.0.