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.
2008–20247 cycles · 5 audited
2024 turnout
69.7%7,811 participants ÷ 11,202 CVAP
2020→2022 drop-off
+33.8 ptsPresidential-dependent
Drop-off vs state
+14.8 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026
35.2%–35.9%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%80%100%
30.9%
43.1%
2008201220162018202020222024
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
7,811
11,202 ± 536
69.7%
Audited
E/A
2022Mid
4,714
10,950 ± 499
43.1%
Audited
E/A
7,249
9,428 ± 424
76.9%
Audited
E/A
2018Mid
2,949
9,537 ± 383
30.9%
Audited
E/A
5,892
8,915 ± 394
66.1%
Audited
E/A
5,709
8,099
70.5%
Derived
—
5,999
6,353
94.4%
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 (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.
presidential history
Party record book
Grain Valley, MO · 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
42.9%
2,571 votes · R+12.8
Runner-up · John Kerry, 2004 · 38.9%
Republican
Donald Trump2016
64.2%
3,734 votes · R+33.8
Runner-up · Donald Trump, 2024 · 62.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
2,826votes
35.9% of the vote · R+27.0
Runner-up · Barack Obama, 2008 · 2,571 votes
Republican
Donald Trump2024
4,953votes
62.9% of the vote · R+27.0
Runner-up · Donald Trump, 2020 · 4,531 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
John Kerry2004
−19.6pts D vs U.S.
Place R+22.1 · U.S. R+2.5
Runner-up · Barack Obama, 2008 · −20.0 pts
Republican
Donald Trump2016
+35.9pts R vs U.S.
Place R+33.8 · U.S. D+2.1
Runner-up · Donald Trump, 2020 · +31.7 pts
presidential primaries
Nominating contests
Grain 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 Jackson County, Missouri, the county containing Grain Valley — Grain Valley’s own primary vote sits inside those totals and is not separately reported.
Presidential nominating contests in Grain 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.
Grain Valley has roughly tripled in population since 2000, tracking the broader eastward expansion of the Kansas City metro. That rapid in-migration makes its electorate younger and more transient than surrounding Jackson County precincts.
Across the recorded series it reached a Republican high of 33.8 points in 2016. The 2024 margin was 27.0 points.
A population of 16,271, a 85% non-Hispanic-white share, and a median household income of $89,649 describe the city. The city's voting pattern over the last decade is most similar to that of Oak Grove and Republic.
Akashic
Political twins — cities
The cities 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.
In 2024, Grain Valley, Missouri voted Republican by 27.0 points (R+27.0), carried by the Republican candidate. Out of 7,874 votes cast, 2,826 went Democratic and 4,953 went Republican.
How many people live in Grain Valley, Missouri?
Grain Valley, Missouri has a population of 16,271 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Grain Valley, Missouri?
Median household income in Grain Valley, Missouri is $89,649 — above the national median of $80,734. The Missouri state median is $70,702.
What is the political history of Grain Valley, Missouri?
Akashic tracks 6 presidential elections in Grain Valley, Missouri from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
