Overview
- District ID
- wa-sd-021
- State
- Washington
- Chamber
- Upper chamber (state senate)
- District Code
- 021
- Land Area
- 35.3 sq mi
- Water Area
- 22 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Snohomish County | 35.33 sq mi | 100.0% | 1.7% |
Showing all 1 county
Places
Showing all 10 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 |
|---|
| WA District 2 | 111,646 | 71.1% | 14.5% | 79.7% |
| WA District 1 | 45,406 | 28.9% | 5.9% | 20.3% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 103,921
- Active Voters
- 96,674 (93.0%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 36,964 (35.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 74,972 (72.1%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 56,768 (54.6%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 71,007 (68.3%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 50,428 (48.5%) | 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
- 155,780 (± 3,848)
- Median Age
- 38.5
- Median Household Income
- $106,028 (± $2,948)
- High School Graduate or Higher (age 25+)
- 93.5%
- Bachelor's Degree or Higher (age 25+)
- 44.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 32,107 | 20.6% |
| 18 to 64 | 100,075 | 64.2% |
| 65 and over | 23,598 | 15.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 18,415 | 11.8% |
| White, not Hispanic | 87,098 | 55.9% |
| Black, not Hispanic | 7,821 | 5.0% |
| Asian, not Hispanic | 26,163 | 16.8% |
| American Indian / Alaska Native, not Hispanic | 705 | 0.5% |
| Native Hawaiian / Pacific Islander, not Hispanic | 1,624 | 1.0% |
| Some other race, not Hispanic | 1,615 | 1.0% |
| Two or more races, not Hispanic | 12,339 | 7.9% |
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
- 139,033
- Citizen Voting Age Population (CVAP)
- 108,638
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 125,522 | 90.3% |
| Hispanic | 13,510 | 9.7% |
| White | 86,182 | 62.0% |
| Black | 6,558 | 4.7% |
| Asian | 20,345 | 14.6% |
| American Indian / Alaska Native | 689 | 0.5% |
| Native Hawaiian / Pacific Islander | 1,222 | 0.9% |
| Two or More Races | 1,899 | 1.4% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 100,607 | 92.6% |
| Hispanic | 8,028 | 7.4% |
| White | 73,004 | 67.2% |
| Black | 6,155 | 5.7% |
| Asian | 17,875 | 16.5% |
| American Indian / Alaska Native | 1,673 | 1.5% |
| Native Hawaiian / Pacific Islander | 883 | 0.8% |
| Two or More Races | 1,038 | 1.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
