HarrisDemocratic30.5%3,030TrumpRepublican67.4%6,694KennedyOther1.5%146
R+36.9- Lead
- 3,664
- Total
- 9,927
- vs nation
- R+35.4
- Turnout
- 70.6%
Akashiccounty
Jefferson County, KS
Contests in this Place (89 available)
President34 · 1892–2024 · 3 mapped
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
President results by year
2024 turnout 70.6% of 14,224 citizens 18+
BidenDemocratic32.7%3,194TrumpRepublican64.8%6,334JorgensenLibertarian2.6%254
R+32.1- Lead
- 3,140
- Total
- 9,782
- vs nation
- R+36.6
- Turnout
- 68.0%
ClintonDemocratic29.8%2,518TrumpRepublican61.8%5,213JohnsonLibertarian4.5%384
R+31.9- Lead
- 2,695
- Total
- 8,440
- vs nation
- R+34.0
- Turnout
- 60.2%
ObamaDemocratic37.2%2,977RomneyRepublican60.2%4,827JohnsonLibertarian2.1%167
R+23.1- Lead
- 1,850
- Total
- 8,013
- vs nation
- R+26.9
- Turnout
- —
ObamaDemocratic39.6%3,542McCainRepublican58.3%5,220OtherAll other candidates2.1%188
R+18.7- Lead
- 1,678
- Total
- 8,950
- vs nation
- R+26.0
- Turnout
- —
KerryDemocratic37.0%3,253BushRepublican61.5%5,408OtherAll other candidates1.5%132
R+24.5- Lead
- 2,155
- Total
- 8,793
- vs nation
- R+22.1
- Turnout
- —
GoreDemocratic38.1%3,000BushRepublican56.2%4,423NaderGreen4.1%321
R+18.1- Lead
- 1,423
- Total
- 7,877
- vs nation
- R+18.6
- Turnout
- —
ClintonDemocratic36.0%2,757DoleRepublican49.3%3,781PerotReform13.4%1,030
R+13.4- Lead
- 1,024
- Total
- 7,668
- vs nation
- R+21.9
- Turnout
- —
Key facts
- 2024 presidential margin
- R+36.9MIT Election Lab
- Population
- 18,3492024 5-year
- Population density
- 34 / sq mi2024 5-year · TIGER/Line
- Land area
- 533 sq miTIGER/Line
- Median household income
- $81,2782024 5-year
- White (non-Hispanic)
- 91.1%2024 5-year
- Black
- 0.4%2024 5-year
- Hispanic / Latino
- 3.5%2024 5-year
- Peak Democratic margin
- D+9.8 in 1912MIT Election Lab
- Peak Republican margin
- R+51.0 in 1924MIT Election Lab
- Most similar
- Jackson County, KS · twin score 77.3
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
- 70.6%10,047 participants ÷ 14,224 CVAP
- 2020→2022 drop-off
- +12.8 ptsVolatile
- Drop-off vs state
- -6.0 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 57.8%–60.6%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm Derived, pre-2016
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 10,047 | 14,224 ± 123 | 70.6% | Audited | A/A | |
| 2022Mid | 7,820 | 14,169 ± 106 | 55.2% | Audited | C/A |
| 9,912 | 14,573 ± 86 | 68.0% | Audited | A/A | |
| 2018Mid | 7,649 | 14,444 ± 95 | 53.0% | Audited | A/A |
| 8,651 | 14,380 ± 82 | 60.2% | Audited | A/A | |
| 8,013 | 14,304 | 56.0% | Derived | — | |
| 8,950 | 13,936 | 64.2% | Derived | — | |
| 8,793 | 13,568 extrapolated | 64.8% | 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 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
- 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.
Explore precinct resultsSearch, sort, compare years, or export CSV · 28 precincts
Precinct data
Results by precinct
28 precincts · 9,927 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -KS087000090KS087000090 | 447 | 1,084 | 25 | 1,556 | 28.7% | 69.7% | R+40.9 |
|---|---|---|---|---|---|---|---|
| Precinct -KS087000070KS087000070 | 315 | 735 | 23 | 1,073 | 29.4% | 68.5% | R+39.1 |
| Precinct -KS087000010KS087000010 | 210 | 696 | 9 | 915 | 23.0% | 76.1% | R+53.1 |
| Precinct -KS087000080KS087000080 | 265 | 598 | 21 | 884 | 30.0% | 67.6% | R+37.7 |
| Precinct -KS087000120KS087000120 | 219 | 638 | 25 | 882 | 24.8% | 72.3% | R+47.5 |
| Precinct -KS087000050KS087000050 | 289 | 545 | 16 | 850 | 34.0% | 64.1% | R+30.1 |
| Precinct -KS087000040KS087000040 | 251 | 509 | 19 | 779 | 32.2% | 65.3% | R+33.1 |
| Precinct -KS087000030KS087000030 | 145 | 414 | 10 | 569 | 25.5% | 72.8% | R+47.3 |
| Precinct -KS087000110KS087000110 | 248 | 220 | 13 | 481 | 51.6% | 45.7% | D+5.8 |
| Precinct -KS087000130KS087000130 | 121 | 332 | 13 | 466 | 26.0% | 71.2% | R+45.3 |
| Precinct -KS087000020KS087000020 | 207 | 243 | 10 | 460 | 45.0% | 52.8% | R+7.8 |
| Precinct -KS087000060KS087000060 | 105 | 319 | 12 | 436 | 24.1% | 73.2% | R+49.1 |
| Precinct -KS087000100KS087000100 | 154 | 276 | 6 | 436 | 35.3% | 63.3% | R+28.0 |
| Precinct -KS087000111KS087000111 | 41 | 64 | 1 | 106 | 38.7% | 60.4% | R+21.7 |
| Precinct -KS087000121KS087000121 | 13 | 21 | 0 | 34 | 38.2% | 61.8% | R+23.5 |
| Delaware Township Voting District20_20087000010 | 0 | 0 | 0 | 0 | — | — | No votes |
| East Fairview Voting District20_20087000020 | 0 | 0 | 0 | 0 | — | — | No votes |
| Jefferson Township Voting District20_20087000030 | 0 | 0 | 0 | 0 | — | — | No votes |
| Kaw Township Voting District20_20087000040 | 0 | 0 | 0 | 0 | — | — | No votes |
| Kentucky Township Voting District20_20087000050 | 0 | 0 | 0 | 0 | — | — | No votes |
| Norton Township Voting District20_20087000060 | 0 | 0 | 0 | 0 | — | — | No votes |
| Oskaloosa Township Voting District20_20087000070 | 0 | 0 | 0 | 0 | — | — | No votes |
| Ozawkie Township Voting District20_20087000080 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rock Creek Township Voting District20_20087000090 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rural Township Voting District20_20087000100 | 0 | 0 | 0 | 0 | — | — | No votes |
| Sarcoxie Township Voting District20_20087000110 | 0 | 0 | 0 | 0 | — | — | No votes |
| Union Township Voting District20_20087000120 | 0 | 0 | 0 | 0 | — | — | No votes |
| West Fairview Voting District20_20087000130 | 0 | 0 | 0 | 0 | — | — | No votes |
presidential history
Party record book
Jefferson County, KS · 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
50.8%
3,185 votes · D+3.4
Runner-up · William J. Bryan, 1896 · 49.0%
Republican
Herbert Hoover1928
74.8%
4,810 votes · R+49.9
Runner-up · Dwight D. Eisenhower, 1952 · 73.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
3,542votes
39.6% of the vote · R+18.7
Runner-up · John Kerry, 2004 · 3,253 votes
Republican
Donald Trump2024
6,694votes
67.4% of the vote · R+36.9
Runner-up · Donald Trump, 2020 · 6,334 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
William J. Bryan1896
+5.1pts D vs U.S.
Place R+1.0 · U.S. R+6.1
Runner-up · William J. Bryan, 1900 · −3.1 pts
Republican
Benjamin Harrison1892
+51.6pts R vs U.S.
Place R+50.0 · U.S. D+1.7 · a third-party candidate carried the Place
Runner-up · Thomas E. Dewey, 1944 · +45.3 pts
current representation
Current officeholders
RCraig BowserState Senate · 1
RKenny TitusState Senate · 18
RLance NeellyState House · 42
RRonald EllisState House · 47
Seats representing Jefferson County, KS. A county elects none of these itself — they are the members for the 1 congressional, 2 state senate and 2 state house districts it falls inside, so parts of the county are represented by different members.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 32.3%3,124 | 67.7%6,543 | 9,667 |
| 2020 | R | 34.8%3,235 | 65.2%6,055 | 9,290 |
voter registration
Registered voters
By party of registration, over time
Party registration · 2025R+33.7
Presidential vote · 2024R+36.9
Registration leans Republican; the presidential vote runs 3.2 points more Republican than the rolls.
14,009 registered voters · 2025
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+39 net domestic migration · 2025
20112025
Net +117 over 2011–2025 · gain loss
Arrivals reported $64,371 in average income, against $76,267 for residents who stayed — 16% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+9.1 on average — 46 points more Democratic-leaning than Jefferson County, KS itself (R+36.9).
Where arrivals came from lean of each source
- Shawnee County, KS128D+0.5
- Douglas County, KS101D+38.0
- Leavenworth County, KS56R+22.8
- Johnson County, KS32D+8.5
Where departures went households, 2022–23
- Shawnee County, KS161
- Douglas County, KS103
- Leavenworth County, KS48
- Johnson County, KS36
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 | −185 |
| 2012 | −74 |
| 2013 | −103 |
| 2014 | +14 |
| 2015 | +22 |
| 2016 | +21 |
| 2017 | +105 |
| 2018 | −61 |
| 2019 | +167 |
| 2021 | +140 |
| 2022 | −29 |
| 2023 | +6 |
| 2024 | +55 |
| 2025 | +39 |
Jefferson County sits in the northeastern corner of Kansas, where a predominantly rural, white population has produced consistent double-digit Republican presidential margins since at least 2000, reaching R+36.9 in 2024.
Across the recorded series it reached a Democratic high of 9.8 points in 1912 and a Republican high of 51.0 points in 1924. Between 2020 and 2024 the county moved 4.8 points toward the Republican candidate; the 2024 margin was 36.9 points.
A population of 18,349, a 91% non-Hispanic-white share, and a median household income of $81,278 describe the county. The county's voting pattern over the last decade is most similar to that of Jackson County and Miami County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Jackson County
Kansas
77.3twin score
% Black% unaffiliated% Evangelical
Miami County
Kansas
76.6twin score
% White% Evangelicalmedian income
Carbon County
Montana
75.6twin score
% Whitemedian income% Black≠ median age
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Jefferson County, Kansas. Akashic. https://akashic.app/county/20087/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Jefferson County, Kansas vote in 2024?
In 2024, Jefferson County, Kansas voted Republican by 36.9 points (R+36.9), carried by the Republican candidate. Out of 9,927 votes cast, 3,030 went Democratic and 6,694 went Republican.
When did Jefferson County, Kansas last vote Democratic?
The most recent presidential election in which Jefferson County, Kansas voted Democratic was 1932.
How many people live in Jefferson County, Kansas?
Jefferson County, Kansas has a population of 18,349 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Jefferson County, Kansas?
Median household income in Jefferson County, Kansas is $81,278 — above the national median of $80,734. The Kansas state median is $74,275.
What is the political history of Jefferson County, Kansas?
Akashic tracks 38 presidential elections in Jefferson County, Kansas from 1876 to 2024. Of those, 2 went Democratic and 30 went Republican.