Overview
- District ID
- ia-hd-056
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 056
- Land Area
- 1,407 sq mi
- Water Area
- 4.48 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing top 25 of 30 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 | 32,033 | 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
- 20,295
- Active Voters
- 17,403 (85.8%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 3,325 | 16.4% |
| Republican | 10,158 | 50.1% |
| Unaffiliated | 6,664 | 32.8% |
| Other parties | 148 | 0.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,798 (23.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 15,961 (78.6%) | 219 (1.1%) | 2,276 (11.2%) |
| 2021–2022 | 11,794 (58.1%) | 689 (3.4%) | 3,061 (15.1%) |
| 2019–2020 | 15,353 (75.6%) | 1,385 (6.8%) | 3,033 (14.9%) |
| 2017–2018 | 11,422 (56.3%) | 725 (3.6%) | 1,829 (9.0%) |
| 2015–2016 | 13,029 (64.2%) | 323 (1.6%) | 847 (4.2%) |
| 2013–2014 | 9,371 (46.2%) | 231 (1.1%) | 1,984 (9.8%) |
| 2011–2012 | 11,525 (56.8%) | 152 (0.7%) | 1,708 (8.4%) |
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
- 31,766 (± 217)
- Median Age
- 42.2
- Median Household Income
- $69,375 (± $3,481)
- High School Graduate or Higher (age 25+)
- 91.9%
- Bachelor's Degree or Higher (age 25+)
- 21.8%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 7,511 | 23.6% |
| 18 to 64 | 17,071 | 53.7% |
| 65 and over | 7,184 | 22.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,667 | 11.5% |
| White, not Hispanic | 26,754 | 84.2% |
| Black, not Hispanic | 136 | 0.4% |
| Asian, not Hispanic | 254 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 19 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 70 | 0.2% |
| Some other race, not Hispanic | 243 | 0.8% |
| Two or more races, not Hispanic | 623 | 2.0% |
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
- 30,587
- Citizen Voting Age Population (CVAP)
- 23,140
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 27,950 | 91.4% |
| Hispanic | 2,637 | 8.6% |
| White | 27,178 | 88.9% |
| Black | 134 | 0.4% |
| Asian | 154 | 0.5% |
| American Indian / Alaska Native | 20 | 0.1% |
| Native Hawaiian / Pacific Islander | 68 | 0.2% |
| Two or More Races | 39 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 22,099 | 95.5% |
| Hispanic | 1,044 | 4.5% |
| White | 21,572 | 93.2% |
| Black | 165 | 0.7% |
| Asian | 123 | 0.5% |
| American Indian / Alaska Native | 153 | 0.7% |
| Native Hawaiian / Pacific Islander | 40 | 0.2% |
| Two or More Races | 39 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
