Overview
- District ID
- ia-hd-020
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 020
- Land Area
- 9.52 sq mi
- Water Area
- 0.58 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 1 county
Places
Showing all 2 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 | 31,882 | 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
- 17,626
- Active Voters
- 13,332 (75.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 5,068 | 28.8% |
| Republican | 5,988 | 34.0% |
| Unaffiliated | 6,235 | 35.4% |
| Other parties | 335 | 1.9% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,455 (19.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 11,554 (65.6%) | 230 (1.3%) | 445 (2.5%) |
| 2021–2022 | 6,582 (37.3%) | 650 (3.7%) | 948 (5.4%) |
| 2019–2020 | 10,210 (57.9%) | 1,337 (7.6%) | 1,170 (6.6%) |
| 2017–2018 | 7,004 (39.7%) | 571 (3.2%) | 484 (2.7%) |
| 2015–2016 | 8,085 (45.9%) | 257 (1.5%) | 489 (2.8%) |
| 2013–2014 | 4,524 (25.7%) | 121 (0.7%) | 471 (2.7%) |
| 2011–2012 | 6,780 (38.5%) | 156 (0.9%) | 642 (3.6%) |
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
- 32,021 (± 1,166)
- Median Age
- 37.6
- Median Household Income
- $59,452 (± $3,653)
- High School Graduate or Higher (age 25+)
- 86.9%
- Bachelor's Degree or Higher (age 25+)
- 14.3%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 7,684 | 24.0% |
| 18 to 64 | 19,214 | 60.0% |
| 65 and over | 5,123 | 16.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 4,826 | 15.1% |
| White, not Hispanic | 25,281 | 79.0% |
| Black, not Hispanic | 412 | 1.3% |
| Asian, not Hispanic | 377 | 1.2% |
| American Indian / Alaska Native, not Hispanic | 70 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 61 | 0.2% |
| Some other race, not Hispanic | 71 | 0.2% |
| Two or more races, not Hispanic | 923 | 2.9% |
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
- 30,757
- Citizen Voting Age Population (CVAP)
- 23,119
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 26,944 | 87.6% |
| Hispanic | 3,813 | 12.4% |
| White | 25,398 | 82.6% |
| Black | 406 | 1.3% |
| Asian | 273 | 0.9% |
| American Indian / Alaska Native | 66 | 0.2% |
| Native Hawaiian / Pacific Islander | 64 | 0.2% |
| Two or More Races | 25 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 21,011 | 90.9% |
| Hispanic | 2,104 | 9.1% |
| White | 20,000 | 86.5% |
| Black | 423 | 1.8% |
| Asian | 310 | 1.3% |
| American Indian / Alaska Native | 217 | 0.9% |
| Native Hawaiian / Pacific Islander | 43 | 0.2% |
| Two or More Races | 27 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
