Overview
- District ID
- ia-sd-043
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 043
- Land Area
- 130.1 sq mi
- Water Area
- 3.68 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Johnson County | 130.10 sq mi | 100.0% | 21.2% |
Showing all 1 county
Places
Showing all 4 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 |
|---|
| IA District 1 | 64,185 | 100.0% | 8.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 47,671
- Active Voters
- 39,861 (83.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 20,585 | 43.2% |
| Republican | 8,817 | 18.5% |
| Unaffiliated | 17,844 | 37.4% |
| Other parties | 425 | 0.9% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 9,318 (19.5%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 37,047 (77.7%) | 2,356 (4.9%) | 861 (1.8%) |
| 2021–2022 | 27,218 (57.1%) | 5,529 (11.6%) | 1,494 (3.1%) |
| 2019–2020 | 33,954 (71.2%) | 9,435 (19.8%) | 1,919 (4.0%) |
| 2017–2018 | 25,000 (52.4%) | 6,166 (12.9%) | 585 (1.2%) |
| 2015–2016 | 25,453 (53.4%) | 2,566 (5.4%) | 335 (0.7%) |
| 2013–2014 | 17,663 (37.1%) | 2,097 (4.4%) | 1,138 (2.4%) |
| 2011–2012 | 21,634 (45.4%) | 1,556 (3.3%) | 622 (1.3%) |
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 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 65,067 (± 1,059)
- Median Age
- 34.3
- Median Household Income
- $93,101 (± $4,050)
- High School Graduate or Higher (age 25+)
- 97.0%
- Bachelor's Degree or Higher (age 25+)
- 58.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 14,949 | 23.0% |
| 18 to 64 | 41,974 | 64.5% |
| 65 and over | 8,144 | 12.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,540 | 5.4% |
| White, not Hispanic | 48,912 | 75.2% |
| Black, not Hispanic | 4,680 | 7.2% |
| Asian, not Hispanic | 4,428 | 6.8% |
| American Indian / Alaska Native, not Hispanic | 72 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 31 | 0.0% |
| Some other race, not Hispanic | 179 | 0.3% |
| Two or more races, not Hispanic | 3,225 | 5.0% |
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
- 61,979
- Citizen Voting Age Population (CVAP)
- 47,221
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 58,791 | 94.9% |
| Hispanic | 3,189 | 5.1% |
| White | 48,884 | 78.9% |
| Black | 4,045 | 6.5% |
| Asian | 3,036 | 4.9% |
| American Indian / Alaska Native | 74 | 0.1% |
| Native Hawaiian / Pacific Islander | 32 | 0.1% |
| Two or More Races | 346 | 0.6% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 45,123 | 95.6% |
| Hispanic | 2,097 | 4.4% |
| White | 38,757 | 82.1% |
| Black | 3,055 | 6.5% |
| Asian | 2,766 | 5.9% |
| American Indian / Alaska Native | 346 | 0.7% |
| Native Hawaiian / Pacific Islander | 19 | 0.0% |
| Two or More Races | 219 | 0.5% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
