Overview
- District ID
- ia-sd-036
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 036
- Land Area
- 68.3 sq mi
- Water Area
- 5.22 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 |
|---|
| Dubuque County | 68.35 sq mi | 100.0% | 11.2% |
Showing all 1 county
Places
Showing all 3 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 | 64,299 | 100.0% | 8.1% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 42,234
- Active Voters
- 34,772 (82.3%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 15,726 | 37.2% |
| Republican | 12,215 | 28.9% |
| Unaffiliated | 13,783 | 32.6% |
| Other parties | 510 | 1.2% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 16,524 (39.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 31,524 (74.6%) | 1,176 (2.8%) | 1,469 (3.5%) |
| 2021–2022 | 22,514 (53.3%) | 4,760 (11.3%) | 2,200 (5.2%) |
| 2019–2020 | 29,470 (69.8%) | 7,161 (17.0%) | 3,119 (7.4%) |
| 2017–2018 | 21,859 (51.8%) | 5,081 (12.0%) | 535 (1.3%) |
| 2015–2016 | 23,377 (55.4%) | 2,892 (6.8%) | 260 (0.6%) |
| 2013–2014 | 16,358 (38.7%) | 2,733 (6.5%) | 1,313 (3.1%) |
| 2011–2012 | 21,101 (50.0%) | 494 (1.2%) | 1,011 (2.4%) |
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
- 63,351 (± 626)
- Median Age
- 39.0
- Median Household Income
- $67,952 (± $2,351)
- High School Graduate or Higher (age 25+)
- 93.6%
- Bachelor's Degree or Higher (age 25+)
- 34.3%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 12,508 | 19.7% |
| 18 to 64 | 37,509 | 59.2% |
| 65 and over | 13,334 | 21.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,757 | 2.8% |
| White, not Hispanic | 54,257 | 85.6% |
| Black, not Hispanic | 2,567 | 4.1% |
| Asian, not Hispanic | 1,008 | 1.6% |
| American Indian / Alaska Native, not Hispanic | 26 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 765 | 1.2% |
| Some other race, not Hispanic | 93 | 0.1% |
| Two or more races, not Hispanic | 2,878 | 4.5% |
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
- 61,763
- Citizen Voting Age Population (CVAP)
- 49,401
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 60,369 | 97.7% |
| Hispanic | 1,391 | 2.3% |
| White | 54,611 | 88.4% |
| Black | 2,516 | 4.1% |
| Asian | 515 | 0.8% |
| American Indian / Alaska Native | 25 | 0.0% |
| Native Hawaiian / Pacific Islander | 386 | 0.6% |
| Two or More Races | 15 | 0.0% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 48,527 | 98.2% |
| Hispanic | 873 | 1.8% |
| White | 45,262 | 91.6% |
| Black | 2,326 | 4.7% |
| Asian | 563 | 1.1% |
| American Indian / Alaska Native | 371 | 0.8% |
| Native Hawaiian / Pacific Islander | 68 | 0.1% |
| Two or More Races | 21 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
