Overview
- District ID
- ia-sd-037
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 037
- Land Area
- 30.7 sq mi
- Water Area
- 0.02 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Linn County | 30.61 sq mi | 99.7% | 4.3% |
Showing all 1 county
Places
Showing all 2 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 | 63,393 | 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
- 44,985
- Active Voters
- 38,495 (85.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 14,657 | 32.6% |
| Republican | 12,897 | 28.7% |
| Unaffiliated | 16,967 | 37.7% |
| Other parties | 464 | 1.0% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 7,620 (16.9%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 35,308 (78.5%) | 695 (1.5%) | 694 (1.5%) |
| 2021–2022 | 26,999 (60.0%) | 4,413 (9.8%) | 2,643 (5.9%) |
| 2019–2020 | 33,763 (75.1%) | 6,708 (14.9%) | 3,723 (8.3%) |
| 2017–2018 | 25,745 (57.2%) | 3,603 (8.0%) | 1,019 (2.3%) |
| 2015–2016 | 27,835 (61.9%) | 2,375 (5.3%) | 551 (1.2%) |
| 2013–2014 | 19,743 (43.9%) | 1,928 (4.3%) | 2,140 (4.8%) |
| 2011–2012 | 25,063 (55.7%) | 895 (2.0%) | 1,010 (2.2%) |
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
- 63,657 (± 1,564)
- Median Age
- 40.3
- Median Household Income
- $82,862 (± $3,474)
- High School Graduate or Higher (age 25+)
- 95.8%
- Bachelor's Degree or Higher (age 25+)
- 41.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,229 | 23.9% |
| 18 to 64 | 36,375 | 57.1% |
| 65 and over | 12,053 | 18.9% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,864 | 2.9% |
| White, not Hispanic | 54,621 | 85.8% |
| Black, not Hispanic | 1,820 | 2.9% |
| Asian, not Hispanic | 2,190 | 3.4% |
| American Indian / Alaska Native, not Hispanic | 39 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 35 | 0.1% |
| Some other race, not Hispanic | 295 | 0.5% |
| Two or more races, not Hispanic | 2,793 | 4.4% |
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
- 62,378
- Citizen Voting Age Population (CVAP)
- 47,258
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 60,835 | 97.5% |
| Hispanic | 1,543 | 2.5% |
| White | 54,910 | 88.0% |
| Black | 1,736 | 2.8% |
| Asian | 1,654 | 2.7% |
| American Indian / Alaska Native | 36 | 0.1% |
| Native Hawaiian / Pacific Islander | 27 | 0.0% |
| Two or More Races | 512 | 0.8% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 46,296 | 98.0% |
| Hispanic | 957 | 2.0% |
| White | 42,794 | 90.6% |
| Black | 1,579 | 3.3% |
| Asian | 1,251 | 2.6% |
| American Indian / Alaska Native | 334 | 0.7% |
| Native Hawaiian / Pacific Islander | 17 | 0.0% |
| Two or More Races | 384 | 0.8% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
