Overview
- District ID
- ia-sd-038
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 038
- Land Area
- 458.7 sq mi
- Water Area
- 4.31 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 11 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 2 | 63,383 | 100.0% | 7.9% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 43,056
- Active Voters
- 37,274 (86.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 12,690 | 29.5% |
| Republican | 14,330 | 33.3% |
| Unaffiliated | 15,616 | 36.3% |
| Other parties | 420 | 1.0% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 10,525 (24.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 35,138 (81.6%) | 1,427 (3.3%) | 2,370 (5.5%) |
| 2021–2022 | 26,378 (61.3%) | 3,402 (7.9%) | 3,188 (7.4%) |
| 2019–2020 | 32,292 (75.0%) | 5,194 (12.1%) | 3,178 (7.4%) |
| 2017–2018 | 24,287 (56.4%) | 3,043 (7.1%) | 936 (2.2%) |
| 2015–2016 | 26,270 (61.0%) | 1,488 (3.5%) | 483 (1.1%) |
| 2013–2014 | 18,921 (43.9%) | 1,262 (2.9%) | 1,873 (4.4%) |
| 2011–2012 | 23,561 (54.7%) | 363 (0.8%) | 1,365 (3.2%) |
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
- 62,953 (± 760)
- Median Age
- 33.8
- Median Household Income
- $79,882 (± $3,725)
- High School Graduate or Higher (age 25+)
- 96.7%
- Bachelor's Degree or Higher (age 25+)
- 40.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 12,257 | 19.5% |
| 18 to 64 | 39,487 | 62.7% |
| 65 and over | 11,209 | 17.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,408 | 2.2% |
| White, not Hispanic | 56,990 | 90.5% |
| Black, not Hispanic | 975 | 1.5% |
| Asian, not Hispanic | 1,432 | 2.3% |
| American Indian / Alaska Native, not Hispanic | 17 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 100 | 0.2% |
| Two or more races, not Hispanic | 2,031 | 3.2% |
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
- 62,197
- Citizen Voting Age Population (CVAP)
- 49,942
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 60,939 | 98.0% |
| Hispanic | 1,259 | 2.0% |
| White | 57,509 | 92.5% |
| Black | 899 | 1.4% |
| Asian | 970 | 1.6% |
| American Indian / Alaska Native | 17 | 0.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 310 | 0.5% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 48,989 | 98.1% |
| Hispanic | 949 | 1.9% |
| White | 46,760 | 93.6% |
| Black | 1,122 | 2.2% |
| Asian | 866 | 1.7% |
| American Indian / Alaska Native | 201 | 0.4% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 86 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
