Connecticut 4th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +20.6% |
| 2012 | +11.7% |
| 2016 | +24.4% |
| 2020 | +31.2% |
| 2024 | +23.7% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 4 | D | 61.1%200,791 | 37.3%122,793 | 328,857 |
| 2022 | 4 | D | 59.4%140,262 | 39.5%93,329 | 236,084 |
| 2020 | 4 | D | 62.2%224,432 | 36.2%130,627 | 360,716 |
| 2018 | 4 | D | 61.2%168,726 | 37.4%103,175 | 275,651 |
| 2016 | 4 | D | 59.9%187,811 | 38.5%120,653 | 313,540 |
| 2014 | 4 | D | 51.0%101,401 | 44.4%88,209 | 198,800 |
| 2012 | 4 | D | 57.0%167,320 | 40.0%117,503 | 293,432 |
| 2010 | 4 | D | 50.9%110,746 | 46.9%102,030 | 217,391 |
| 2008 | 4 | D | 48.4%149,345 | 47.6%146,854 | 308,776 |
| 2006 | 4 | R | 47.6%99,450 | 51.0%106,510 | 209,019 |
| 2004 | 4 | R | 47.6%138,333 | 52.4%152,493 | 290,830 |
| 2002 | 4 | R | 35.6%62,491 | 64.4%113,197 | 175,695 |
| 2000 | 4 | R | 40.9%84,472 | 57.6%119,155 | 206,758 |
| 1998 | 4 | R | 29.9%40,988 | 69.1%94,767 | 137,204 |
| 1996 | 4 | R | 37.6%75,902 | 60.5%121,949 | 201,712 |
| 1994 | 4 | R | 23.8%34,962 | 74.4%109,436 | 147,062 |
| 1992 | 4 | R | 26.7%58,666 | 67.3%147,816 | 219,615 |
| 1990 | 4 | R | 23.4%32,352 | 76.5%105,682 | 138,068 |
| 1988 | 4 | R | 27.1%55,751 | 71.8%147,843 | 205,973 |
| 1986 | 4 | R | 46.5%66,999 | 53.5%77,212 | 144,211 |
| 1984 | 4 | R | 29.6%69,666 | 70.4%165,644 | 235,310 |
| 1982 | 4 | R | 42.9%71,110 | 56.5%93,660 | 165,897 |
| 1980 | 4 | R | 37.4%74,326 | 62.6%124,285 | 198,625 |
| 1978 | 4 | R | 41.6%59,918 | 58.4%83,990 | 143,919 |
| 1976 | 4 | R | 37.1%76,722 | 61.0%126,314 | 207,058 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 55.8%953,646 | 39.7%678,256 | 1,708,259 |
| 2018 | D | 56.8%787,685 | 39.4%545,717 | 1,386,752 |
| 2016 | D | 57.7%920,766 | 34.6%552,621 | 1,596,238 |
| 2012 | D | 52.7%792,983 | 40.2%604,569 | 1,504,895 |
| 2010 | D | 52.5%605,204 | 43.2%498,341 | 1,152,443 |
| 2006 | O | 39.7%450,844 | 9.6%109,198 | 1,134,697 |
| 2004 | D | 66.4%945,347 | 32.1%457,749 | 1,424,726 |
| 2000 | D | 63.2%828,902 | 34.2%448,077 | 1,311,261 |
| 1998 | D | 65.1%628,306 | 32.4%312,177 | 964,457 |
| 1994 | D | 41.1%443,793 | 31.0%334,833 | 1,079,664 |
| 1992 | D | 38.5%577,662 | 38.1%572,036 | 1,500,661 |
| 1988 | D | 49.8%688,499 | 49.0%678,454 | 1,383,516 |
| 1986 | D | 64.8%632,695 | 34.8%340,438 | 976,933 |
| 1982 | R | 46.1%499,146 | 50.4%545,987 | 1,083,508 |
| 1980 | D | 56.3%763,969 | 42.9%581,884 | 1,355,961 |
| 1976 | R | 41.2%561,018 | 57.7%785,683 | 1,361,666 |
Stretching along Long Island Sound from Greenwich to Bridgeport, CT-04 pairs some of the wealthiest ZIP codes in the country with post-industrial urban centers, producing a consistent double-digit Democratic lean in federal contests.
Across the recorded series it reached a Democratic high of 31.2 points in 2020. Between 2020 and 2024 the district moved 7.6 points toward the Republican candidate; the 2024 margin was 23.7 points.
A population of 720,968, a 60% non-Hispanic-white share, and a median household income of $119,442 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 6.
The congressional 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 →
Connecticut 4th Congressional District. Akashic. https://akashic.app/cd/0904/. Accessed May 20, 2026. License: CC BY 4.0.