Overview
- District ID
- ia-hd-040
- State
- Iowa
- Chamber
- Lower chamber
- District Code
- 040
- Land Area
- 37 sq mi
- Water Area
- 0.02 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 |
|---|
| Polk County | 37.05 sq mi | 100.0% | 6.5% |
Showing all 1 county
Places
Showing all 4 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 3 | 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
- 22,445
- Active Voters
- 19,357 (86.2%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 6,745 | 30.1% |
| Republican | 7,250 | 32.3% |
| Unaffiliated | 8,222 | 36.6% |
| Other parties | 228 | 1.0% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,572 (20.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 17,903 (79.8%) | 684 (3.0%) | 505 (2.2%) |
| 2021–2022 | 12,844 (57.2%) | 1,648 (7.3%) | 1,676 (7.5%) |
| 2019–2020 | 16,603 (74.0%) | 2,684 (12.0%) | 1,574 (7.0%) |
| 2017–2018 | 12,288 (54.7%) | 1,831 (8.2%) | 584 (2.6%) |
| 2015–2016 | 13,531 (60.3%) | 714 (3.2%) | 414 (1.8%) |
| 2013–2014 | 9,058 (40.4%) | 252 (1.1%) | 969 (4.3%) |
| 2011–2012 | 12,188 (54.3%) | 181 (0.8%) | 463 (2.1%) |
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
- 33,980 (± 1,342)
- Median Age
- 36.5
- Median Household Income
- $85,536 (± $8,777)
- High School Graduate or Higher (age 25+)
- 94.7%
- Bachelor's Degree or Higher (age 25+)
- 32.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,685 | 25.6% |
| 18 to 64 | 19,798 | 58.3% |
| 65 and over | 5,497 | 16.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,198 | 6.5% |
| White, not Hispanic | 27,940 | 82.2% |
| Black, not Hispanic | 2,062 | 6.1% |
| Asian, not Hispanic | 536 | 1.6% |
| American Indian / Alaska Native, not Hispanic | 27 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 72 | 0.2% |
| Two or more races, not Hispanic | 1,145 | 3.4% |
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
- 33,463
- Citizen Voting Age Population (CVAP)
- 24,778
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 31,430 | 93.9% |
| Hispanic | 2,029 | 6.1% |
| White | 28,079 | 83.9% |
| Black | 1,852 | 5.5% |
| Asian | 442 | 1.3% |
| American Indian / Alaska Native | 27 | 0.1% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 72 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 23,492 | 94.8% |
| Hispanic | 1,284 | 5.2% |
| White | 21,508 | 86.8% |
| Black | 1,284 | 5.2% |
| Asian | 616 | 2.5% |
| American Indian / Alaska Native | 44 | 0.2% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 49 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
