Iowa State House District 59

State Legislative District Profile (Lower Chamber)

Overview

District ID
ia-hd-059
State
Iowa
Chamber
Lower chamber
District Code
059
Land Area
360.8 sq mi
Water Area
0.59 sq mi

Boundary

Boundary of Iowa State House District 59

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Cerro Gordo County360.81 sq mi100.0%63.5%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Mason City city27.86 sq mi7.7%98.7%
Rockwell city2.97 sq mi0.8%100.0%
Portland CDP0.99 sq mi0.3%100.0%
Dougherty city0.56 sq mi0.2%100.0%
Plymouth city0.44 sq mi0.1%100.0%
Swaledale city0.25 sq mi0.1%100.0%
Rock Falls city0.21 sq mi0.1%100.0%
Burchinal CDP0.08 sq mi<0.1%100.0%
Nora Springs city0.03 sq mi<0.1%1.6%

Showing all 9 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
IA District 232,090100.0%4.0%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
21,311
Active Voters
17,740 (83.2%)

Party Registration

PartyVotersShare
Democratic6,14128.8%
Republican6,46230.3%
Unaffiliated8,53040.0%
Other parties1780.8%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20264,975 (23.3%)0 (0.0%)0 (0.0%)
2023–202416,227 (76.1%)654 (3.1%)1,980 (9.3%)
2021–202211,741 (55.1%)1,451 (6.8%)1,933 (9.1%)
2019–202015,370 (72.1%)2,377 (11.2%)1,494 (7.0%)
2017–201811,900 (55.8%)1,019 (4.8%)492 (2.3%)
2015–201612,862 (60.4%)497 (2.3%)462 (2.2%)
2013–20149,627 (45.2%)403 (1.9%)690 (3.2%)
2011–201211,880 (55.7%)572 (2.7%)325 (1.5%)

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
31,557 (± 329)
Median Age
42.5
Median Household Income
$66,617 (± $2,942)
High School Graduate or Higher (age 25+)
94.1%
Bachelor's Degree or Higher (age 25+)
21.3%

Population by Age

GroupPeopleShare
Under 186,75521.4%
18 to 6417,66056.0%
65 and over7,14222.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,9726.2%
White, not Hispanic27,24086.3%
Black, not Hispanic7872.5%
Asian, not Hispanic3651.2%
American Indian / Alaska Native, not Hispanic710.2%
Native Hawaiian / Pacific Islander, not Hispanic2670.8%
Some other race, not Hispanic130.0%
Two or more races, not Hispanic8422.7%

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
30,995
Citizen Voting Age Population (CVAP)
24,272

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic29,20794.2%
Hispanic1,7865.8%
White27,37988.3%
Black7572.4%
Asian2640.9%
American Indian / Alaska Native710.2%
Native Hawaiian / Pacific Islander680.2%
Two or More Races450.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic23,21795.7%
Hispanic1,0574.4%
White22,15891.3%
Black6452.7%
Asian2591.1%
American Indian / Alaska Native1860.8%
Native Hawaiian / Pacific Islander10.0%
Two or More Races200.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).