Michigan 18th State Senate District
Akashic| Donald Trump ✓Republican | 61.2% | 93,987 |
|---|---|---|
| Kamala HarrisDemocratic | 37.4% | 57,506 |
| Jill SteinGreen | 1.4% | 2,175 |
County-level results (6 counties) — table
| County | Winner | Margin |
|---|---|---|
| Allegan County, MI | Republican | R+27.2 |
| Barry County, MI | Republican | R+34.3 |
| Calhoun County, MI | Republican | R+14.0 |
| Ionia County, MI | Republican | R+31.9 |
| Kalamazoo County, MI | Democratic | D+17.7 |
| Kent County, MI | Democratic | D+5.3 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 37.4%Harris57,506 | 61.2%Trump93,987 | 1.4%Stein2,175 | 153,668 | ||
| R | 38.3%Biden55,584 | 59.8%Trump86,696 | 1.9%Jorgensen2,765 | 145,045 | ||
| R | 34.9%Clinton43,438 | 58.9%Trump73,228 | 6.2%Johnson7,648 | 124,314 | ||
| R | 43.9%Obama51,757 | 56.1%Romney66,127 | 0.0% | 117,884 | ||
| R | 47.1%Obama60,233 | 50.8%McCain64,932 | 2.1%Nader2,711 | 127,876 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −3.7% |
| 2012 | −12.2% |
| 2016 | −24.0% |
| 2020 | −21.4% |
| 2024 | −23.7% |
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of D+53.5, this district ranks among the most heavily Democratic in the state, reflecting a dense, urban constituency where statewide competitive races are seldom in doubt at the district level.
Across the recorded series it reached a Republican high of 24.0 points in 2016. Between 2020 and 2024 the district moved 2.3 points toward the Republican candidate; the 2024 margin was 23.7 points.
A population of 268,291, a 85% non-Hispanic-white share, and a median household income of $74,756 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 33 and State Senate District 17.
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 →
Michigan 18th State Senate District. Akashic. https://akashic.app/sld-upper/26018/. Accessed May 20, 2026. License: CC BY 4.0.