Overview
- District ID
- ct-sd-004
- State
- Connecticut
- Chamber
- Upper chamber (state senate)
- District Code
- 004
- Land Area
- 108.5 sq mi
- Water Area
- 1.72 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Places
Showing all 2 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| CT District 1 | 71,712 | 69.7% | 9.9% | 34.2% |
| CT District 2 | 31,169 | 30.3% | 4.3% | 65.8% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 72,749
- Active Voters
- 64,447 (88.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 26,524 | 36.5% |
| Republican | 13,899 | 19.1% |
| Unaffiliated | 31,138 | 42.8% |
| Other parties | 1,188 | 1.6% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 1,150 (1.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 53,673 (73.8%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 39,847 (54.8%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 52,627 (72.3%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 39,344 (54.1%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 41,818 (57.5%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 27,301 (37.5%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 33,175 (45.6%) | 0 (0.0%) | 0 (0.0%) |
Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.
Browse the voter list for this district (premium access; sign-in required)
Source: Civitech voter file snapshot as of 11/04/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 102,933 (± 48)
- Median Age
- 40.0
- Median Household Income
- $103,431 (± $4,066)
- High School Graduate or Higher (age 25+)
- 95.3%
- Bachelor's Degree or Higher (age 25+)
- 50.8%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 21,055 | 20.5% |
| 18 to 64 | 63,719 | 61.9% |
| 65 and over | 18,159 | 17.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 13,510 | 13.1% |
| White, not Hispanic | 65,049 | 63.2% |
| Black, not Hispanic | 9,204 | 8.9% |
| Asian, not Hispanic | 10,700 | 10.4% |
| American Indian / Alaska Native, not Hispanic | 38 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 728 | 0.7% |
| Two or more races, not Hispanic | 3,704 | 3.6% |
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.
Citizen Voting Age Population
- Total Citizen Population
- 96,518
- Citizen Voting Age Population (CVAP)
- 76,015
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 83,768 | 86.8% |
| Hispanic | 12,753 | 13.2% |
| White | 65,875 | 68.3% |
| Black | 8,627 | 8.9% |
| Asian | 6,704 | 6.9% |
| American Indian / Alaska Native | 37 | 0.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 294 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 67,546 | 88.9% |
| Hispanic | 8,465 | 11.1% |
| White | 55,873 | 73.5% |
| Black | 6,747 | 8.9% |
| Asian | 4,576 | 6.0% |
| American Indian / Alaska Native | 285 | 0.4% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 207 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
