Kansas 18th State Senate District
Akashic| Donald Trump ✓Republican | 65.5% | 25,762 |
|---|---|---|
| Kamala HarrisDemocratic | 32.5% | 12,759 |
| Robert F. Kennedy Jr.Independent | 2.0% | 786 |
County-level results (4 counties) — table
| County | Winner | Margin |
|---|---|---|
| Jefferson County, KS | Republican | R+36.7 |
| Pottawatomie County, KS | Republican | R+47.6 |
| Riley County, KS | Democratic | D+1.8 |
| Shawnee County, KS | Democratic | D+0.5 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 32.5%Harris12,759 | 65.5%Trump25,762 | 2.0%Kennedy786 | 39,307 | ||
| R | 33.6%Biden13,146 | 63.9%Trump25,016 | 2.5%Jorgensen976 | 39,138 | ||
| R | 29.6%Clinton9,925 | 62.2%Trump20,836 | 8.2%Johnson2,759 | 33,520 | ||
| R | 35.3%Obama11,126 | 62.0%Romney19,554 | 2.8%Johnson870 | 31,550 | ||
| R | 36.8%Obama12,538 | 60.4%McCain20,546 | 2.8%Nader952 | 34,036 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −23.5% |
| 2012 | −26.7% |
| 2016 | −32.6% |
| 2020 | −30.3% |
| 2024 | −33.1% |
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of D+12.2, this 74,000-resident district trends well left of the Kansas median, suggesting an urban or university-anchored population base that consistently offsets the state's dominant Republican lean.
Across the recorded series it reached a Republican high of 33.1 points in 2024. Between 2020 and 2024 the district moved 2.8 points toward the Republican candidate; the 2024 margin was 33.1 points.
A population of 73,947, a 88% non-Hispanic-white share, and a median household income of $83,549 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 14 and State Senate District 32.
The state-senate districts 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.
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 →
Kansas 18th State Senate District. Akashic. https://akashic.app/sld-upper/20018/. Accessed May 20, 2026. License: CC BY 4.0.