Washington Legislative (House) District 10

State Legislative District Profile (Lower Chamber)

Overview

District ID
wa-hd-010
State
Washington
Chamber
Lower chamber
District Code
010
Land Area
397.7 sq mi
Water Area
384.7 sq mi

Boundary

Boundary of Washington Legislative (House) District 10

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Island County208.47 sq mi52.4%100.0%
Snohomish County99.61 sq mi25.0%4.8%
Skagit County89.42 sq mi22.5%5.2%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Camano CDP39.75 sq mi10.0%100.0%
Arlington city9.81 sq mi2.5%98.4%
Oak Harbor city9.65 sq mi2.4%99.9%
Whidbey Island Station CDP6.57 sq mi1.7%100.0%
Kayak Point CDP5.47 sq mi1.4%100.0%
Warm Beach CDP4.36 sq mi1.1%100.0%
Lake Goodwin CDP4.33 sq mi1.1%77.2%
Freeland CDP3.88 sq mi1.0%100.0%
Sunday Lake CDP3.33 sq mi0.8%100.0%
Lake Ketchum CDP3.11 sq mi0.8%100.0%
Mount Vernon city2.98 sq mi0.7%24.3%
Stanwood city2.93 sq mi0.7%98.5%
Silvana CDP1.52 sq mi0.4%99.3%
Coupeville town1.27 sq mi0.3%100.0%
Clinton CDP1.01 sq mi0.3%100.0%
Langley city1.01 sq mi0.3%100.0%
Northwest Stanwood CDP0.71 sq mi0.2%100.0%
La Conner town0.40 sq mi0.1%100.0%
Sisco Heights CDP0.33 sq mi0.1%2.4%
Conway CDP0.23 sq mi0.1%99.8%
Marysville city0.02 sq mi<0.1%0.1%
Bryant CDP0.00 sq mi<0.1%<0.1%

Showing all 22 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
WA District 2135,10186.0%17.6%95.1%
WA District 120,04012.8%2.6%2.6%
WA District 81,8711.2%0.2%2.3%

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

Voters

Registered Voters
126,447
Active Voters
117,285 (92.8%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202645,422 (35.9%)0 (0.0%)0 (0.0%)
2023–202494,989 (75.1%)0 (0.0%)0 (0.0%)
2021–202275,740 (59.9%)0 (0.0%)0 (0.0%)
2019–202088,597 (70.1%)0 (0.0%)0 (0.0%)
2017–201866,520 (52.6%)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 01/02/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
160,060 (± 2,054)
Median Age
43.3
Median Household Income
$92,852 (± $3,200)
High School Graduate or Higher (age 25+)
94.7%
Bachelor's Degree or Higher (age 25+)
32.9%

Population by Age

GroupPeopleShare
Under 1831,51919.7%
18 to 6490,13056.3%
65 and over38,41124.0%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)16,86610.5%
White, not Hispanic120,96375.6%
Black, not Hispanic2,4801.5%
Asian, not Hispanic6,2593.9%
American Indian / Alaska Native, not Hispanic1,3770.9%
Native Hawaiian / Pacific Islander, not Hispanic4160.3%
Some other race, not Hispanic7690.5%
Two or more races, not Hispanic10,9306.8%

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
155,250
Citizen Voting Age Population (CVAP)
124,185

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic140,67490.6%
Hispanic14,5759.4%
White123,50779.6%
Black2,4101.6%
Asian5,0663.3%
American Indian / Alaska Native1,2810.8%
Native Hawaiian / Pacific Islander4170.3%
Two or More Races1,3230.9%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic115,29892.8%
Hispanic8,8887.2%
White102,49382.5%
Black3,1472.5%
Asian5,7024.6%
American Indian / Alaska Native2,6902.2%
Native Hawaiian / Pacific Islander4180.3%
Two or More Races8850.7%

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