Overview
- District ID
- ia-hd-051
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 051
- Land Area
- 842.7 sq mi
- Water Area
- 1.3 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 18 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 | 31,906 | 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
- 23,070
- Active Voters
- 20,329 (88.1%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 5,081 | 22.0% |
| Republican | 9,118 | 39.5% |
| Unaffiliated | 8,623 | 37.4% |
| Other parties | 248 | 1.1% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 5,054 (21.9%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 18,718 (81.1%) | 352 (1.5%) | 1,995 (8.6%) |
| 2021–2022 | 14,492 (62.8%) | 1,335 (5.8%) | 2,074 (9.0%) |
| 2019–2020 | 17,745 (76.9%) | 2,292 (9.9%) | 2,252 (9.8%) |
| 2017–2018 | 13,685 (59.3%) | 1,504 (6.5%) | 978 (4.2%) |
| 2015–2016 | 14,968 (64.9%) | 633 (2.7%) | 721 (3.1%) |
| 2013–2014 | 10,806 (46.8%) | 247 (1.1%) | 1,423 (6.2%) |
| 2011–2012 | 13,461 (58.3%) | 267 (1.2%) | 662 (2.9%) |
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
- 33,050 (± 683)
- Median Age
- 40.0
- Median Household Income
- $89,967 (± $3,699)
- High School Graduate or Higher (age 25+)
- 96.4%
- Bachelor's Degree or Higher (age 25+)
- 35.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,520 | 25.8% |
| 18 to 64 | 18,566 | 56.2% |
| 65 and over | 5,964 | 18.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,563 | 4.7% |
| White, not Hispanic | 29,485 | 89.2% |
| Black, not Hispanic | 148 | 0.4% |
| Asian, not Hispanic | 617 | 1.9% |
| American Indian / Alaska Native, not Hispanic | 53 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 94 | 0.3% |
| Two or more races, not Hispanic | 1,090 | 3.3% |
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
- 32,652
- Citizen Voting Age Population (CVAP)
- 24,144
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 31,194 | 95.5% |
| Hispanic | 1,450 | 4.4% |
| White | 29,712 | 91.0% |
| Black | 136 | 0.4% |
| Asian | 403 | 1.2% |
| American Indian / Alaska Native | 53 | 0.2% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 54 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 23,232 | 96.2% |
| Hispanic | 914 | 3.8% |
| White | 22,413 | 92.8% |
| Black | 161 | 0.7% |
| Asian | 428 | 1.8% |
| American Indian / Alaska Native | 180 | 0.7% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 45 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
