Overview
- District ID
- ia-hd-003
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 003
- Land Area
- 836.9 sq mi
- Water Area
- 1.1 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 14 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 | 31,928 | 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
- 21,330
- Active Voters
- 18,441 (86.5%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 2,716 | 12.7% |
| Republican | 12,585 | 59.0% |
| Unaffiliated | 5,876 | 27.5% |
| Other parties | 153 | 0.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 5,409 (25.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 16,690 (78.2%) | 105 (0.5%) | 2,334 (10.9%) |
| 2021–2022 | 11,727 (55.0%) | 373 (1.7%) | 2,213 (10.4%) |
| 2019–2020 | 15,346 (71.9%) | 873 (4.1%) | 4,550 (21.3%) |
| 2017–2018 | 11,255 (52.8%) | 448 (2.1%) | 1,926 (9.0%) |
| 2015–2016 | 12,685 (59.5%) | 110 (0.5%) | 2,617 (12.3%) |
| 2013–2014 | 8,895 (41.7%) | 47 (0.2%) | 1,937 (9.1%) |
| 2011–2012 | 11,191 (52.5%) | 62 (0.3%) | 1,294 (6.1%) |
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
- 32,532 (± 812)
- Median Age
- 37.4
- Median Household Income
- $80,799 (± $3,796)
- High School Graduate or Higher (age 25+)
- 93.6%
- Bachelor's Degree or Higher (age 25+)
- 27.3%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,607 | 26.5% |
| 18 to 64 | 18,200 | 55.9% |
| 65 and over | 5,725 | 17.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,496 | 10.7% |
| White, not Hispanic | 27,483 | 84.5% |
| Black, not Hispanic | 718 | 2.2% |
| Asian, not Hispanic | 82 | 0.3% |
| American Indian / Alaska Native, not Hispanic | 85 | 0.3% |
| Native Hawaiian / Pacific Islander, not Hispanic | 115 | 0.4% |
| Some other race, not Hispanic | 34 | 0.1% |
| Two or more races, not Hispanic | 519 | 1.6% |
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
- 31,372
- Citizen Voting Age Population (CVAP)
- 22,953
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 28,745 | 91.6% |
| Hispanic | 2,632 | 8.4% |
| White | 27,551 | 87.8% |
| Black | 572 | 1.8% |
| Asian | 57 | 0.2% |
| American Indian / Alaska Native | 85 | 0.3% |
| Native Hawaiian / Pacific Islander | 59 | 0.2% |
| Two or More Races | 64 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 21,727 | 94.7% |
| Hispanic | 1,229 | 5.4% |
| White | 20,996 | 91.5% |
| Black | 401 | 1.7% |
| Asian | 143 | 0.6% |
| American Indian / Alaska Native | 184 | 0.8% |
| Native Hawaiian / Pacific Islander | 5 | 0.0% |
| Two or More Races | 1 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
