Jefferson County, Kansas
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 | — | — | Even |
| East Fairview Voting District20_20087000020 | 0 | 0 | 0 | 0 | — | — | Even |
| Jefferson Township Voting District20_20087000030 | 0 | 0 | 0 | 0 | — | — | Even |
| Kaw Township Voting District20_20087000040 | 0 | 0 | 0 | 0 | — | — | Even |
| Kentucky Township Voting District20_20087000050 | 0 | 0 | 0 | 0 | — | — | Even |
| Norton Township Voting District20_20087000060 | 0 | 0 | 0 | 0 | — | — | Even |
| Oskaloosa Township Voting District20_20087000070 | 0 | 0 | 0 | 0 | — | — | Even |
| Ozawkie Township Voting District20_20087000080 | 0 | 0 | 0 | 0 | — | — | Even |
| Rock Creek Township Voting District20_20087000090 | 0 | 0 | 0 | 0 | — | — | Even |
| Rural Township Voting District20_20087000100 | 0 | 0 | 0 | 0 | — | — | Even |
| Sarcoxie Township Voting District20_20087000110 | 0 | 0 | 0 | 0 | — | — | Even |
| Union Township Voting District20_20087000120 | 0 | 0 | 0 | 0 | — | — | Even |
| West Fairview Voting District20_20087000130 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −50.0% |
| 1896 | −1.0% |
| 1900 | −10.6% |
| 1904 | −34.8% |
| 1908 | −13.5% |
| 1912 | +9.8% |
| 1916 | −4.1% |
| 1920 | −38.3% |
| 1924 | −51.0% |
| 1928 | −49.9% |
| 1932 | +3.4% |
| 1936 | −8.9% |
| 1940 | −32.2% |
| 1944 | −37.8% |
| 1948 | −19.3% |
| 1952 | −47.4% |
| 1956 | −40.9% |
| 1960 | −31.6% |
| 1964 | −7.0% |
| 1968 | −29.0% |
| 1972 | −48.3% |
| 1976 | −12.9% |
| 1980 | −36.2% |
| 1984 | −38.6% |
| 1988 | −12.2% |
| 1992 | −0.4% |
| 1996 | −13.4% |
| 2000 | −18.1% |
| 2004 | −24.5% |
| 2008 | −18.7% |
| 2012 | −23.1% |
| 2016 | −31.9% |
| 2020 | −32.1% |
| 2024 | −36.9% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 28.4%2,160 | 68.6%5,208 | 7,594 |
| 2020 | R | 34.2%3,349 | 60.3%5,902 | 9,787 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 3.2 points more Democratic.
14,009 registered voters · 2025
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
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.
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 →
Jefferson County, Kansas. Akashic. https://akashic.app/county/20087/. Accessed May 20, 2026. License: CC BY 4.0.