- Lead
- 9,824
- Total
- 42,921
- vs nation
- R+21.4
- Turnout
- 59.4%
Woodbury County, IA
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
President results by year
2024 turnout 59.4% of 72,821 citizens 18+
- Lead
- 7,032
- Total
- 45,362
- vs nation
- R+20.0
- Turnout
- 63.8%
- Lead
- 8,517
- Total
- 44,167
- vs nation
- R+21.4
- Turnout
- 63.0%
- Lead
- 461
- Total
- 45,019
- vs nation
- R+2.8
- Turnout
- —
- Lead
- 236
- Total
- 44,801
- vs nation
- R+7.8
- Turnout
- —
- Lead
- 996
- Total
- 44,195
- vs nation
- D+0.2
- Turnout
- —
- Lead
- 1,173
- Total
- 37,896
- vs nation
- R+3.6
- Turnout
- —
- Lead
- 856
- Total
- 37,464
- vs nation
- R+6.2
- Turnout
- —
Key facts
- 2024 presidential margin
- R+22.9MIT Election Lab
- Population
- 106,2472024 5-year
- Population density
- 122 / sq mi2024 5-year · TIGER/Line
- Land area
- 873 sq miTIGER/Line
- Median household income
- $73,6582024 5-year
- White (non-Hispanic)
- 67.1%2024 5-year
- Black
- 4.9%2024 5-year
- Hispanic / Latino
- 19.1%2024 5-year
- Peak Democratic margin
- D+34.1 in 1932MIT Election Lab
- Peak Republican margin
- R+42.1 in 1904MIT Election Lab
- Most similar
- Marshall County, IA · twin score 82.9
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
- 2024 turnout
- 59.4%43,247 participants ÷ 72,821 CVAP
- 2020→2022 drop-off
- +24.4 ptsPresidential-dependent
- Drop-off vs state
- +3.4 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 35.0%–40.7%Recent-cycle and two-cycle persistence scenarios; not a forecast
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 43,247 | 72,821 ± 763 | 59.4% | Audited | A/A | |
| 2022Mid | 28,823 | 73,210 ± 750 | 39.4% | Audited | A/A |
| 45,700 | 71,632 ± 686 | 63.8% | Audited | A/A | |
| 2018Mid | 35,635 | 71,228 ± 577 | 50.0% | Audited | A/A |
| 44,167 | 70,142 ± 564 | 63.0% | Audited | A/A | |
| 45,019 | 69,864 | 64.4% | Derived | — | |
| 44,801 | 70,509 | 63.5% | Derived | — | |
| 44,195 | 71,154 extrapolated | 62.1% | Derived | — |
Sources and methods
Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
- 2022: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.
Interactive election map
One map. Every available contest.
The map and local result cover Woodbury County only. The complete contest result is shown below for comparison.
Woodbury County result
0 precinct units · 0 candidate votes
Governor contest result
Loading the complete contest result…
Explore precinct resultsSearch, sort, compare years, or export CSV · 44 precincts
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 history
Party record book
Woodbury County, IA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
66.1%
26,397 votes · D+34.1
Runner-up · Franklin D. Roosevelt, 1936 · 62.4%
Republican
Theodore Roosevelt1904
66.9%
7,597 votes · R+42.1
Runner-up · Warren G. Harding, 1920 · 62.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
26,847votes
62.4% of the vote · D+29.5
Runner-up · Lyndon B. Johnson, 1964 · 26,841 votes
Republican
Dwight D. Eisenhower1952
27,518votes
58.4% of the vote · R+17.1
Runner-up · Richard Nixon, 1960 · 26,832 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Woodrow Wilson1916
+17.6pts D vs U.S.
Place D+20.8 · U.S. D+3.1
Runner-up · Franklin D. Roosevelt, 1932 · +16.4 pts
Republican
Theodore Roosevelt1904
+22.5pts R vs U.S.
Place R+42.1 · U.S. R+19.7
Runner-up · Donald Trump, 2024 · +21.4 pts
Current officeholders
Seats representing Woodbury County, IA. A county elects none of these itself — they are the members for the 1 congressional, 2 state senate and 3 state house districts it falls inside, so parts of the county are represented by different members.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 13 points more Republican than the rolls.
| 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.