Overview
- District ID
- ia-sd-048
- State
- Iowa
- Chamber
- Upper chamber (state senate)
- District Code
- 048
- Land Area
- 1,339.4 sq mi
- Water Area
- 36.8 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 33 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 1 | 63,720 | 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
- 41,062
- Active Voters
- 34,385 (83.7%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 9,258 | 22.5% |
| Republican | 15,976 | 38.9% |
| Unaffiliated | 15,447 | 37.6% |
| Other parties | 381 | 0.9% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 6,887 (16.8%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 31,155 (75.9%) | 466 (1.1%) | 2,334 (5.7%) |
| 2021–2022 | 21,563 (52.5%) | 1,388 (3.4%) | 3,319 (8.1%) |
| 2019–2020 | 29,697 (72.3%) | 3,756 (9.1%) | 5,512 (13.4%) |
| 2017–2018 | 20,856 (50.8%) | 1,695 (4.1%) | 1,584 (3.9%) |
| 2015–2016 | 24,582 (59.9%) | 1,040 (2.5%) | 891 (2.2%) |
| 2013–2014 | 16,178 (39.4%) | 531 (1.3%) | 2,499 (6.1%) |
| 2011–2012 | 21,977 (53.5%) | 679 (1.7%) | 2,064 (5.0%) |
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
- 62,345 (± 669)
- Median Age
- 40.7
- Median Household Income
- $69,749 (± $3,019)
- High School Graduate or Higher (age 25+)
- 90.9%
- Bachelor's Degree or Higher (age 25+)
- 22.5%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 14,587 | 23.4% |
| 18 to 64 | 35,644 | 57.2% |
| 65 and over | 12,114 | 19.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 7,922 | 12.7% |
| White, not Hispanic | 50,210 | 80.5% |
| Black, not Hispanic | 1,161 | 1.9% |
| Asian, not Hispanic | 584 | 0.9% |
| American Indian / Alaska Native, not Hispanic | 59 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 67 | 0.1% |
| Two or more races, not Hispanic | 2,342 | 3.8% |
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
- 60,511
- Citizen Voting Age Population (CVAP)
- 46,073
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 53,674 | 88.7% |
| Hispanic | 6,833 | 11.3% |
| White | 50,468 | 83.4% |
| Black | 884 | 1.5% |
| Asian | 395 | 0.7% |
| American Indian / Alaska Native | 60 | 0.1% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 66 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 41,965 | 91.1% |
| Hispanic | 4,110 | 8.9% |
| White | 40,126 | 87.1% |
| Black | 932 | 2.0% |
| Asian | 439 | 1.0% |
| American Indian / Alaska Native | 445 | 1.0% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 21 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
