Overview
- District ID
- ia-sd-046
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 046
- Land Area
- 1,615.4 sq mi
- Water Area
- 9.1 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 34 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 | 63,909 | 100.0% | 8.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 45,000
- Active Voters
- 39,255 (87.2%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 11,415 | 25.4% |
| Republican | 17,030 | 37.8% |
| Unaffiliated | 16,196 | 36.0% |
| Other parties | 359 | 0.8% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 7,049 (15.7%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 36,367 (80.8%) | 1,154 (2.6%) | 2,757 (6.1%) |
| 2021–2022 | 27,535 (61.2%) | 3,014 (6.7%) | 5,320 (11.8%) |
| 2019–2020 | 34,197 (76.0%) | 5,564 (12.4%) | 4,873 (10.8%) |
| 2017–2018 | 25,839 (57.4%) | 3,039 (6.8%) | 1,779 (4.0%) |
| 2015–2016 | 28,381 (63.1%) | 1,382 (3.1%) | 2,681 (6.0%) |
| 2013–2014 | 20,545 (45.7%) | 1,285 (2.9%) | 2,658 (5.9%) |
| 2011–2012 | 25,796 (57.3%) | 876 (1.9%) | 2,155 (4.8%) |
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
- 64,913 (± 686)
- Median Age
- 40.7
- Median Household Income
- $79,692 (± $3,109)
- High School Graduate or Higher (age 25+)
- 94.2%
- Bachelor's Degree or Higher (age 25+)
- 31.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,950 | 24.6% |
| 18 to 64 | 36,591 | 56.4% |
| 65 and over | 12,372 | 19.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,918 | 6.0% |
| White, not Hispanic | 56,919 | 87.7% |
| Black, not Hispanic | 1,102 | 1.7% |
| Asian, not Hispanic | 605 | 0.9% |
| American Indian / Alaska Native, not Hispanic | 49 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 4 | 0.0% |
| Some other race, not Hispanic | 347 | 0.5% |
| Two or more races, not Hispanic | 1,969 | 3.0% |
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
- 63,857
- Citizen Voting Age Population (CVAP)
- 48,045
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 60,659 | 95.0% |
| Hispanic | 3,195 | 5.0% |
| White | 57,473 | 90.0% |
| Black | 1,132 | 1.8% |
| Asian | 457 | 0.7% |
| American Indian / Alaska Native | 47 | 0.1% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 11 | 0.0% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 46,387 | 96.5% |
| Hispanic | 1,656 | 3.4% |
| White | 44,644 | 92.9% |
| Black | 849 | 1.8% |
| Asian | 589 | 1.2% |
| American Indian / Alaska Native | 297 | 0.6% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 10 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
