Overview
- District ID
- ia-sd-035
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 035
- Land Area
- 947.2 sq mi
- Water Area
- 19.3 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 24 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 | 63,807 | 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
- 43,889
- Active Voters
- 36,942 (84.2%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 10,729 | 24.4% |
| Republican | 14,947 | 34.1% |
| Unaffiliated | 17,872 | 40.7% |
| Other parties | 341 | 0.8% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 7,287 (16.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 33,380 (76.1%) | 559 (1.3%) | 2,090 (4.8%) |
| 2021–2022 | 23,640 (53.9%) | 2,208 (5.0%) | 3,456 (7.9%) |
| 2019–2020 | 31,121 (70.9%) | 5,015 (11.4%) | 4,737 (10.8%) |
| 2017–2018 | 22,307 (50.8%) | 1,969 (4.5%) | 1,758 (4.0%) |
| 2015–2016 | 25,730 (58.6%) | 890 (2.0%) | 755 (1.7%) |
| 2013–2014 | 18,140 (41.3%) | 600 (1.4%) | 2,011 (4.6%) |
| 2011–2012 | 23,572 (53.7%) | 1,424 (3.2%) | 1,026 (2.3%) |
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
- 62,909 (± 675)
- Median Age
- 42.3
- Median Household Income
- $70,551 (± $2,637)
- High School Graduate or Higher (age 25+)
- 93.9%
- Bachelor's Degree or Higher (age 25+)
- 24.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 14,561 | 23.1% |
| 18 to 64 | 35,594 | 56.6% |
| 65 and over | 12,754 | 20.3% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,238 | 3.6% |
| White, not Hispanic | 56,243 | 89.4% |
| Black, not Hispanic | 1,578 | 2.5% |
| Asian, not Hispanic | 358 | 0.6% |
| American Indian / Alaska Native, not Hispanic | 46 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 90 | 0.1% |
| Some other race, not Hispanic | 90 | 0.1% |
| Two or more races, not Hispanic | 2,266 | 3.6% |
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
- 62,491
- Citizen Voting Age Population (CVAP)
- 47,951
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 60,363 | 96.6% |
| Hispanic | 2,125 | 3.4% |
| White | 56,744 | 90.8% |
| Black | 1,504 | 2.4% |
| Asian | 288 | 0.5% |
| American Indian / Alaska Native | 48 | 0.1% |
| Native Hawaiian / Pacific Islander | 18 | 0.0% |
| Two or More Races | 153 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 46,828 | 97.7% |
| Hispanic | 1,126 | 2.3% |
| White | 44,791 | 93.4% |
| Black | 1,181 | 2.5% |
| Asian | 437 | 0.9% |
| American Indian / Alaska Native | 335 | 0.7% |
| Native Hawaiian / Pacific Islander | 14 | 0.0% |
| Two or More Races | 74 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
