Overview
- District ID
- ia-sd-008
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 008
- Land Area
- 2,484 sq mi
- Water Area
- 17.9 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 counties
Places
Showing top 25 of 47 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 | 63,575 | 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
- 46,871
- Active Voters
- 40,596 (86.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 8,423 | 18.0% |
| Republican | 25,433 | 54.3% |
| Unaffiliated | 12,489 | 26.6% |
| Other parties | 526 | 1.1% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 9,596 (20.5%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 37,654 (80.3%) | 595 (1.3%) | 4,664 (10.0%) |
| 2021–2022 | 26,248 (56.0%) | 1,367 (2.9%) | 6,530 (13.9%) |
| 2019–2020 | 34,673 (74.0%) | 3,373 (7.2%) | 9,253 (19.7%) |
| 2017–2018 | 25,013 (53.4%) | 1,534 (3.3%) | 3,446 (7.4%) |
| 2015–2016 | 28,347 (60.5%) | 615 (1.3%) | 2,625 (5.6%) |
| 2013–2014 | 18,217 (38.9%) | 336 (0.7%) | 3,654 (7.8%) |
| 2011–2012 | 24,432 (52.1%) | 505 (1.1%) | 4,170 (8.9%) |
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
- 63,963 (± 564)
- Median Age
- 43.0
- Median Household Income
- $88,348 (± $2,687)
- High School Graduate or Higher (age 25+)
- 95.2%
- Bachelor's Degree or Higher (age 25+)
- 28.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,198 | 23.8% |
| 18 to 64 | 35,300 | 55.2% |
| 65 and over | 13,465 | 21.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,885 | 2.9% |
| White, not Hispanic | 59,341 | 92.8% |
| Black, not Hispanic | 386 | 0.6% |
| Asian, not Hispanic | 215 | 0.3% |
| American Indian / Alaska Native, not Hispanic | 56 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 77 | 0.1% |
| Some other race, not Hispanic | 138 | 0.2% |
| Two or more races, not Hispanic | 1,865 | 2.9% |
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
- 63,600
- Citizen Voting Age Population (CVAP)
- 48,424
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 61,901 | 97.3% |
| Hispanic | 1,692 | 2.7% |
| White | 59,902 | 94.2% |
| Black | 378 | 0.6% |
| Asian | 206 | 0.3% |
| American Indian / Alaska Native | 56 | 0.1% |
| Native Hawaiian / Pacific Islander | 15 | 0.0% |
| Two or More Races | 120 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 47,377 | 97.8% |
| Hispanic | 1,048 | 2.2% |
| White | 46,142 | 95.3% |
| Black | 442 | 0.9% |
| Asian | 287 | 0.6% |
| American Indian / Alaska Native | 390 | 0.8% |
| Native Hawaiian / Pacific Islander | 16 | 0.0% |
| Two or More Races | 102 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
