Overview
- District ID
- ia-hd-091
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 091
- Land Area
- 821.8 sq mi
- Water Area
- 5.74 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 |
|---|
| Iowa County | 586.46 sq mi | 71.4% | 100.0% |
| Johnson County | 235.35 sq mi | 28.6% | 38.4% |
Showing all 2 counties
Places
Showing all 21 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 | 32,036 | 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
- 24,758
- Active Voters
- 21,850 (88.3%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 6,291 | 25.4% |
| Republican | 8,952 | 36.2% |
| Unaffiliated | 9,323 | 37.7% |
| Other parties | 192 | 0.8% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,603 (14.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 20,294 (82.0%) | 601 (2.4%) | 1,874 (7.6%) |
| 2021–2022 | 15,387 (62.1%) | 1,578 (6.4%) | 2,605 (10.5%) |
| 2019–2020 | 18,982 (76.7%) | 3,114 (12.6%) | 3,010 (12.2%) |
| 2017–2018 | 14,389 (58.1%) | 1,650 (6.7%) | 1,072 (4.3%) |
| 2015–2016 | 15,768 (63.7%) | 740 (3.0%) | 470 (1.9%) |
| 2013–2014 | 11,312 (45.7%) | 731 (3.0%) | 1,229 (5.0%) |
| 2011–2012 | 14,186 (57.3%) | 433 (1.7%) | 497 (2.0%) |
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
- 33,085 (± 686)
- Median Age
- 40.4
- Median Household Income
- $86,313 (± $3,148)
- High School Graduate or Higher (age 25+)
- 96.5%
- Bachelor's Degree or Higher (age 25+)
- 37.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,219 | 24.8% |
| 18 to 64 | 19,062 | 57.6% |
| 65 and over | 5,804 | 17.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 968 | 2.9% |
| White, not Hispanic | 29,578 | 89.4% |
| Black, not Hispanic | 629 | 1.9% |
| Asian, not Hispanic | 283 | 0.9% |
| American Indian / Alaska Native, not Hispanic | 32 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 303 | 0.9% |
| Two or more races, not Hispanic | 1,292 | 3.9% |
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
- 32,961
- Citizen Voting Age Population (CVAP)
- 24,740
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 32,006 | 97.1% |
| Hispanic | 957 | 2.9% |
| White | 30,017 | 91.1% |
| Black | 635 | 1.9% |
| Asian | 217 | 0.7% |
| American Indian / Alaska Native | 32 | 0.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 2 | 0.0% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 24,121 | 97.5% |
| Hispanic | 622 | 2.5% |
| White | 23,234 | 93.9% |
| Black | 479 | 1.9% |
| Asian | 269 | 1.1% |
| American Indian / Alaska Native | 133 | 0.5% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 2 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
