Old Greenwich, Connecticut
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +1.5% |
| 2008 | +15.6% |
| 2012 | −7.0% |
| 2016 | +30.3% |
| 2020 | +35.2% |
| 2024 | +16.0% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 57.3%Harris2,150 | 41.3%Trump1,549 | 1.4% | D+16.0 | R+19.2 | D+17.5 | 3,753 | |
| D | 66.8%Biden2,661 | 31.6%Trump1,259 | 1.5% | D+35.2 | D+4.9 | D+30.8 | 3,981 | |
| D | 63.0%Clinton2,098 | 32.7%Trump1,089 | 4.3% | D+30.3 | D+37.3 | D+28.2 | 3,330 | |
| R | 46.0%Obama1,449 | 53.0%Romney1,671 | 1.0% | R+7.0 | R+22.6 | R+10.9 | 3,150 | |
| D | 57.6%Obama2,000 | 42.0%McCain1,459 | 0.4% | D+15.6 | D+14.0 | D+8.3 | 3,473 | |
| D | 50.4%Kerry1,697 | 48.8%Bush1,645 | 0.8% | D+1.5 | — | D+4.0 | 3,370 |
Old Greenwich draws some of Connecticut's highest household incomes along its shoreline, and its small, affluent electorate has shifted notably toward Democratic margins in recent cycles despite its traditionally Republican suburban roots.
Across the recorded series it reached a Democratic high of 35.2 points in 2020 and a Republican high of 7.0 points in 2012. Between 2020 and 2024 the city moved 19.2 points toward the Republican candidate; the 2024 margin was 16.0 points.
A population of 6,936, a 78% non-Hispanic-white share, and a median household income of $250,001 describe the city. The city's voting pattern over the last decade is most similar to that of Riverside and Fair Haven.
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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Old Greenwich, Connecticut. Akashic. https://akashic.app/city/0956900/. Accessed May 20, 2026. License: CC BY 4.0.