Hawaii State House District 51

State Legislative District Profile (Lower Chamber)

Overview

District ID
hi-hd-051
State
Hawaii
Chamber
Lower chamber
District Code
051
Land Area
17.4 sq mi
Water Area
1,058.2 sq mi

Boundary

Boundary of Hawaii State House District 51

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Honolulu County17.37 sq mi99.8%2.9%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Waimanalo CDP4.36 sq mi25.0%100.0%
Kailua CDP3.08 sq mi17.7%22.3%
Waimanalo Beach CDP1.98 sq mi11.3%100.0%
East Honolulu CDP0.00 sq mi<0.1%<0.1%

Showing all 4 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
HI District 227,776100.0%3.8%100.0%

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

Voters

Registered Voters
17,722
Active Voters
16,961 (95.7%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202411,693 (66.0%)0 (0.0%)0 (0.0%)

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 07/18/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
27,095 (± 1,919)
Median Age
42.1
Median Household Income
$150,532 (± $8,717)
High School Graduate or Higher (age 25+)
95.7%
Bachelor's Degree or Higher (age 25+)
44.9%

Population by Age

GroupPeopleShare
Under 186,06122.4%
18 to 6415,20756.1%
65 and over5,82721.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)2,5999.6%
White, not Hispanic7,53827.8%
Black, not Hispanic450.2%
Asian, not Hispanic4,73017.5%
American Indian / Alaska Native, not Hispanic80.0%
Native Hawaiian / Pacific Islander, not Hispanic3,83314.1%
Some other race, not Hispanic1070.4%
Two or more races, not Hispanic8,23530.4%

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
26,373
Citizen Voting Age Population (CVAP)
20,453

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic23,78790.2%
Hispanic2,5849.8%
White7,37728.0%
Black460.2%
Asian4,54017.2%
American Indian / Alaska Native70.0%
Native Hawaiian / Pacific Islander3,79814.4%
Two or More Races5,80622.0%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic18,82892.1%
Hispanic1,6217.9%
White6,29430.8%
Black2191.1%
Asian4,98324.4%
American Indian / Alaska Native1910.9%
Native Hawaiian / Pacific Islander2,85514.0%
Two or More Races4,30021.0%

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