Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the city’s overall result across 2004–2024, on current city boundaries.
President results by year
Vote totals, margins, and source status
HarrisDemocratic33.7%425TrumpRepublican63.6%802OtherAll other candidates2.7%34
R+29.9
Lead
377
Total
1,261
vs nation
R+28.4
BidenDemocratic34.6%460TrumpRepublican63.5%844OtherAll other candidates1.9%25
R+28.9
Lead
384
Total
1,329
vs nation
R+33.3
ClintonDemocratic34.2%431TrumpRepublican59.7%752OtherAll other candidates6.1%77
R+25.5
Lead
321
Total
1,260
vs nation
R+27.6
ObamaDemocratic47.3%644RomneyRepublican51.1%695OtherAll other candidates1.6%22
R+3.7
Lead
51
Total
1,361
vs nation
R+7.6
ObamaDemocratic49.8%688McCainRepublican48.0%664OtherAll other candidates2.2%30
D+1.7
Lead
24
Total
1,382
vs nation
R+5.5
KerryDemocratic41.2%558BushRepublican58.6%793OtherAll other candidates0.1%2
R+17.4
Lead
235
Total
1,353
vs nation
R+14.9
Key facts
2024 presidential margin
R+29.9MIT Election Lab
Population
2,6662024 5-year
Population density
784 / sq mi2024 5-year · TIGER/Line
Land area
3.4 sq miTIGER/Line
Median household income
$71,8182024 5-year
White (non-Hispanic)
94.7%2024 5-year
Black
0.0%2024 5-year
Hispanic / Latino
2.1%2024 5-year
Peak Democratic margin
D+1.7 in 2008MIT Election Lab
Peak Republican margin
R+29.9 in 2024MIT Election Lab
Participation
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.
2004–20248 cycles · 5 audited
2024 turnout
60.0%1,270 participants ÷ 2,118 CVAP
2020→2022 drop-off
+24.0 ptsPresidential-dependent
Drop-off vs state
+3.0 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026
36.0%–42.7%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%80%
51.3%
43.4%
20042008201220162018202020222024
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
1,270
2,118 ± 141
60.0%
Audited
E/A
2022Mid
902
2,080 ± 128
43.4%
Audited
E/A
1,335
1,982 ± 125
67.4%
Audited
E/A
2018Mid
1,026
2,000 ± 116
51.3%
Audited
E/A
1,282
2,073 ± 107
61.8%
Audited
E/A
1,361
2,165
62.9%
Derived
—
1,382
2,133
64.8%
Derived
—
1,353
2,101 extrapolated
64.4%
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 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 323/229.
2022: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 322/184.
2020: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 321/4.
2018: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 320/139.
2016: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 319/133.
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.
presidential history
Party record book
Missouri Valley, IA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
2004–2024 · 6 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Barack Obama2008
49.8%
688 votes · D+1.7
Runner-up · Barack Obama, 2012 · 47.3%
Republican
Donald Trump2024
63.6%
802 votes · R+29.9
Runner-up · Donald Trump, 2020 · 63.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
688votes
49.8% of the vote · D+1.7
Runner-up · Barack Obama, 2012 · 644 votes
Republican
Donald Trump2020
844votes
63.5% of the vote · R+28.9
Runner-up · Donald Trump, 2024 · 802 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
Barack Obama2008
−5.5pts D vs U.S.
Place D+1.7 · U.S. D+7.3
Runner-up · Barack Obama, 2012 · −7.6 pts
Republican
Donald Trump2020
+33.3pts R vs U.S.
Place R+28.9 · U.S. D+4.5
Runner-up · Donald Trump, 2024 · +28.4 pts
U.S. House elections · 2 House
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.
Missouri Valley · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain. The figures below are Harrison County, Iowa, the county containing Missouri Valley — Missouri Valley’s own primary vote sits inside those totals and is not separately reported.
Presidential nominating contests in Missouri Valley, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
Missouri Valley sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 1.7 points in 2008 and a Republican high of 29.9 points in 2024. Between 2020 and 2024 the city moved 1.0 points toward the Republican candidate; the 2024 margin was 29.9 points.
A population of 2,666, a 95% non-Hispanic-white share, and a median household income of $71,818 describe the city.
In 2024, Missouri Valley, Iowa voted Republican by 29.9 points (R+29.9), carried by the Republican candidate. Out of 1,261 votes cast, 425 went Democratic and 802 went Republican.
When did Missouri Valley, Iowa last vote Democratic?
The most recent presidential election in which Missouri Valley, Iowa voted Democratic was 2008.
How many people live in Missouri Valley, Iowa?
Missouri Valley, Iowa has a population of 2,666 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Missouri Valley, Iowa?
Median household income in Missouri Valley, Iowa is $71,818 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Missouri Valley, Iowa?
Akashic tracks 6 presidential elections in Missouri Valley, Iowa from 2004 to 2024. Of those, 1 went Democratic and 5 went Republican.
