Iowa State House District 64

State Legislative District Profile (Lower Chamber)

Overview

District ID
ia-hd-064
State
Iowa
Chamber
Lower chamber
District Code
064
Land Area
1,453.9 sq mi
Water Area
33.9 sq mi

Boundary

Boundary of Iowa State House District 64

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Clayton County778.50 sq mi53.5%100.0%
Allamakee County639.04 sq mi44.0%100.0%
Dubuque County36.37 sq mi2.5%6.0%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Waukon city2.84 sq mi0.2%99.9%
Guttenberg city2.19 sq mi0.2%100.0%
Strawberry Point city2.09 sq mi0.1%100.0%
Postville city2.08 sq mi0.1%96.8%
Marquette city1.86 sq mi0.1%99.9%
Elkader city1.37 sq mi0.1%100.0%
McGregor city1.29 sq mi0.1%100.0%
Monona city1.29 sq mi0.1%94.5%
Luana city1.10 sq mi0.1%100.0%
Lansing city1.07 sq mi0.1%98.8%
Garnavillo city0.94 sq mi0.1%100.0%
North Buena Vista city0.93 sq mi0.1%100.0%
Volga city0.75 sq mi0.1%100.0%
Harpers Ferry city0.64 sq mi<0.1%100.0%
Clayton city0.51 sq mi<0.1%99.9%
Edgewood city0.46 sq mi<0.1%47.5%
Farmersburg city0.41 sq mi<0.1%99.9%
Osterdock city0.40 sq mi<0.1%100.0%
Waterville city0.35 sq mi<0.1%99.1%
Holy Cross city0.33 sq mi<0.1%99.9%
New Albin city0.25 sq mi<0.1%100.0%
Elkport city0.25 sq mi<0.1%99.8%
St. Olaf city0.24 sq mi<0.1%100.0%
Garber city0.22 sq mi<0.1%99.8%

Showing all 24 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 231,920100.0%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
21,978
Active Voters
18,826 (85.7%)

Party Registration

PartyVotersShare
Democratic4,43420.2%
Republican10,42847.4%
Unaffiliated6,96731.7%
Other parties1490.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20263,715 (16.9%)0 (0.0%)0 (0.0%)
2023–202417,361 (79.0%)252 (1.1%)3,718 (16.9%)
2021–202213,392 (60.9%)1,117 (5.1%)2,273 (10.3%)
2019–202016,311 (74.2%)2,036 (9.3%)2,313 (10.5%)
2017–201812,360 (56.2%)1,139 (5.2%)964 (4.4%)
2015–201613,797 (62.8%)962 (4.4%)1,494 (6.8%)
2013–201410,119 (46.0%)459 (2.1%)1,037 (4.7%)
2011–201212,249 (55.7%)310 (1.4%)2,065 (9.4%)

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
31,909 (± 217)
Median Age
44.6
Median Household Income
$68,732 (± $2,404)
High School Graduate or Higher (age 25+)
92.6%
Bachelor's Degree or Higher (age 25+)
18.0%

Population by Age

GroupPeopleShare
Under 187,24222.7%
18 to 6416,95053.1%
65 and over7,71724.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,6925.3%
White, not Hispanic29,11091.2%
Black, not Hispanic3651.1%
Asian, not Hispanic1130.4%
American Indian / Alaska Native, not Hispanic170.1%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic220.1%
Two or more races, not Hispanic5901.8%

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
31,052
Citizen Voting Age Population (CVAP)
23,969

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic30,05296.8%
Hispanic1,0003.2%
White29,23094.1%
Black3351.1%
Asian780.3%
American Indian / Alaska Native50.0%
Native Hawaiian / Pacific Islander00.0%
Two or More Races460.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic23,55798.3%
Hispanic4091.7%
White23,06096.2%
Black2531.1%
Asian960.4%
American Indian / Alaska Native1080.5%
Native Hawaiian / Pacific Islander10.0%
Two or More Races410.2%

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