Cos Cob, Connecticut
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −7.6% |
| 2008 | +6.6% |
| 2012 | −12.6% |
| 2016 | +12.3% |
| 2020 | +23.5% |
| 2024 | +16.0% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 57.3%Harris2,121 | 41.3%Trump1,529 | 1.4% | D+16.0 | R+7.5 | D+17.5 | 3,703 | |
| D | 60.4%Biden2,438 | 36.9%Trump1,491 | 2.7% | D+23.5 | D+11.2 | D+19.0 | 4,036 | |
| D | 53.9%Clinton1,926 | 41.6%Trump1,486 | 4.5% | D+12.3 | D+24.9 | D+10.2 | 3,574 | |
| R | 43.2%Obama1,398 | 55.8%Romney1,804 | 1.0% | R+12.6 | R+19.2 | R+16.4 | 3,233 | |
| D | 52.7%Obama1,839 | 46.1%McCain1,609 | 1.1% | D+6.6 | D+14.2 | R+0.7 | 3,488 | |
| R | 45.2%Kerry1,555 | 52.8%Bush1,816 | 2.0% | R+7.6 | — | R+5.1 | 3,441 |
Cos Cob sits in New England. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 23.5 points in 2020 and a Republican high of 12.6 points in 2012. Between 2020 and 2024 the city moved 7.5 points toward the Republican candidate; the 2024 margin was 16.0 points.
A population of 7,546, a 67% non-Hispanic-white share, and a median household income of $190,481 describe the city. The city's voting pattern over the last decade is most similar to that of Riverside and Bronxville.
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.
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Cos Cob, Connecticut. Akashic. https://akashic.app/city/0917520/. Accessed May 20, 2026. License: CC BY 4.0.