Overview
- District ID
- ia-hd-005
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 005
- Land Area
- 1,439.7 sq mi
- Water Area
- 1 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 counties
Places
Showing all 17 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 4 | 31,904 | 100.0% | 4.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 20,403
- Active Voters
- 17,709 (86.8%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 2,576 | 12.6% |
| Republican | 12,537 | 61.4% |
| Unaffiliated | 5,155 | 25.3% |
| Other parties | 135 | 0.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,993 (24.5%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 16,398 (80.4%) | 178 (0.9%) | 3,499 (17.1%) |
| 2021–2022 | 11,610 (56.9%) | 416 (2.0%) | 3,597 (17.6%) |
| 2019–2020 | 15,217 (74.6%) | 903 (4.4%) | 5,039 (24.7%) |
| 2017–2018 | 11,162 (54.7%) | 459 (2.2%) | 2,259 (11.1%) |
| 2015–2016 | 12,956 (63.5%) | 190 (0.9%) | 3,914 (19.2%) |
| 2013–2014 | 9,252 (45.3%) | 256 (1.3%) | 2,961 (14.5%) |
| 2011–2012 | 11,199 (54.9%) | 129 (0.6%) | 2,525 (12.4%) |
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
- 31,584 (± 433)
- Median Age
- 41.3
- Median Household Income
- $69,957 (± $2,869)
- High School Graduate or Higher (age 25+)
- 90.7%
- Bachelor's Degree or Higher (age 25+)
- 21.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 7,564 | 23.9% |
| 18 to 64 | 17,259 | 54.6% |
| 65 and over | 6,761 | 21.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,646 | 8.4% |
| White, not Hispanic | 26,709 | 84.6% |
| Black, not Hispanic | 481 | 1.5% |
| Asian, not Hispanic | 470 | 1.5% |
| American Indian / Alaska Native, not Hispanic | 89 | 0.3% |
| Native Hawaiian / Pacific Islander, not Hispanic | 115 | 0.4% |
| Some other race, not Hispanic | 53 | 0.2% |
| Two or more races, not Hispanic | 1,021 | 3.2% |
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
- 30,262
- Citizen Voting Age Population (CVAP)
- 22,842
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 28,433 | 94.0% |
| Hispanic | 1,829 | 6.0% |
| White | 27,210 | 89.9% |
| Black | 496 | 1.6% |
| Asian | 175 | 0.6% |
| American Indian / Alaska Native | 88 | 0.3% |
| Native Hawaiian / Pacific Islander | 36 | 0.1% |
| Two or More Races | 35 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 22,052 | 96.5% |
| Hispanic | 791 | 3.5% |
| White | 21,300 | 93.2% |
| Black | 312 | 1.4% |
| Asian | 211 | 0.9% |
| American Indian / Alaska Native | 195 | 0.9% |
| Native Hawaiian / Pacific Islander | 9 | 0.0% |
| Two or More Races | 22 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
