Overview
- District ID
- ia-sd-013
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 013
- Land Area
- 1,776.8 sq mi
- Water Area
- 18.7 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 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 3 | 63,740 | 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
- 37,339
- Active Voters
- 31,125 (83.4%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 8,819 | 23.6% |
| Republican | 16,011 | 42.9% |
| Unaffiliated | 12,211 | 32.7% |
| Other parties | 298 | 0.8% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 7,110 (19.0%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 28,604 (76.6%) | 911 (2.4%) | 3,403 (9.1%) |
| 2021–2022 | 20,900 (56.0%) | 2,305 (6.2%) | 4,583 (12.3%) |
| 2019–2020 | 26,817 (71.8%) | 3,374 (9.0%) | 3,673 (9.8%) |
| 2017–2018 | 19,506 (52.2%) | 3,050 (8.2%) | 1,838 (4.9%) |
| 2015–2016 | 22,288 (59.7%) | 1,908 (5.1%) | 1,106 (3.0%) |
| 2013–2014 | 15,523 (41.6%) | 1,777 (4.8%) | 1,696 (4.5%) |
| 2011–2012 | 19,440 (52.1%) | 972 (2.6%) | 1,183 (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
- 63,545 (± 130)
- Median Age
- 39.8
- Median Household Income
- $63,947 (± $2,938)
- High School Graduate or Higher (age 25+)
- 88.6%
- Bachelor's Degree or Higher (age 25+)
- 19.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,426 | 24.3% |
| 18 to 64 | 35,723 | 56.2% |
| 65 and over | 12,396 | 19.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 5,376 | 8.5% |
| White, not Hispanic | 53,231 | 83.8% |
| Black, not Hispanic | 1,244 | 2.0% |
| Asian, not Hispanic | 726 | 1.1% |
| American Indian / Alaska Native, not Hispanic | 21 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 860 | 1.4% |
| Some other race, not Hispanic | 196 | 0.3% |
| Two or more races, not Hispanic | 1,891 | 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
- 61,122
- Citizen Voting Age Population (CVAP)
- 45,873
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 57,162 | 93.5% |
| Hispanic | 3,957 | 6.5% |
| White | 53,703 | 87.9% |
| Black | 915 | 1.5% |
| Asian | 662 | 1.1% |
| American Indian / Alaska Native | 17 | 0.0% |
| Native Hawaiian / Pacific Islander | 377 | 0.6% |
| Two or More Races | 99 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 43,768 | 95.4% |
| Hispanic | 2,105 | 4.6% |
| White | 41,812 | 91.1% |
| Black | 867 | 1.9% |
| Asian | 576 | 1.3% |
| American Indian / Alaska Native | 391 | 0.9% |
| Native Hawaiian / Pacific Islander | 50 | 0.1% |
| Two or More Races | 80 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
