Overview
- District ID
- ct-hd-105
- State
- Connecticut
- Chamber
- Lower chamber
- District Code
- 105
- Land Area
- 25.5 sq mi
- Water Area
- 0.59 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Places
| Place | Overlap | Share of district land | Share of place land |
|---|
| Derby city | 1.35 sq mi | 5.3% | 26.6% |
Showing all 1 place
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 3 | 23,313 | 100.0% | 3.2% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 17,406
- Active Voters
- 16,530 (95.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 3,959 | 22.7% |
| Republican | 4,908 | 28.2% |
| Unaffiliated | 8,319 | 47.8% |
| Other parties | 220 | 1.3% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 13,649 (78.4%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 9,561 (54.9%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 12,747 (73.2%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 9,382 (53.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 10,083 (57.9%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 6,743 (38.7%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 7,879 (45.3%) | 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
- 23,428 (± 211)
- Median Age
- 44.1
- Median Household Income
- $105,875 (± $13,275)
- High School Graduate or Higher (age 25+)
- 94.3%
- Bachelor's Degree or Higher (age 25+)
- 36.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 4,414 | 18.8% |
| 18 to 64 | 14,609 | 62.4% |
| 65 and over | 4,405 | 18.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,881 | 16.6% |
| White, not Hispanic | 15,472 | 66.0% |
| Black, not Hispanic | 2,156 | 9.2% |
| Asian, not Hispanic | 497 | 2.1% |
| American Indian / Alaska Native, not Hispanic | 0 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 17 | 0.1% |
| Some other race, not Hispanic | 61 | 0.3% |
| Two or more races, not Hispanic | 1,344 | 5.7% |
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
- 22,577
- Citizen Voting Age Population (CVAP)
- 18,201
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 19,156 | 84.8% |
| Hispanic | 3,424 | 15.2% |
| White | 15,650 | 69.3% |
| Black | 2,077 | 9.2% |
| Asian | 411 | 1.8% |
| American Indian / Alaska Native | 0 | 0.0% |
| Native Hawaiian / Pacific Islander | 17 | 0.1% |
| Two or More Races | 253 | 1.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 16,049 | 88.2% |
| Hispanic | 2,149 | 11.8% |
| White | 13,348 | 73.3% |
| Black | 2,055 | 11.3% |
| Asian | 426 | 2.3% |
| American Indian / Alaska Native | 159 | 0.9% |
| Native Hawaiian / Pacific Islander | 18 | 0.1% |
| Two or More Races | 99 | 0.5% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
