Overview
- District ID
- wa-sd-020
- State
- Washington
- Chamber
- Upper chamber (state senate)
- District Code
- 020
- Land Area
- 3,134 sq mi
- Water Area
- 61.2 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 counties
Places
Showing all 23 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 3 | 156,627 | 99.7% | 20.4% | 100.0% |
| WA District 10 | 450 | 0.3% | 0.1% | <0.1% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 128,613
- Active Voters
- 120,702 (93.8%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 41,519 (32.3%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 96,989 (75.4%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 74,877 (58.2%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 87,381 (67.9%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 62,036 (48.2%) | 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
- 163,631 (± 3,228)
- Median Age
- 40.8
- Median Household Income
- $90,896 (± $3,638)
- High School Graduate or Higher (age 25+)
- 92.0%
- Bachelor's Degree or Higher (age 25+)
- 25.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 39,225 | 24.0% |
| 18 to 64 | 92,034 | 56.2% |
| 65 and over | 32,372 | 19.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 15,023 | 9.2% |
| White, not Hispanic | 135,208 | 82.6% |
| Black, not Hispanic | 1,008 | 0.6% |
| Asian, not Hispanic | 2,457 | 1.5% |
| American Indian / Alaska Native, not Hispanic | 1,046 | 0.6% |
| Native Hawaiian / Pacific Islander, not Hispanic | 356 | 0.2% |
| Some other race, not Hispanic | 825 | 0.5% |
| Two or more races, not Hispanic | 7,708 | 4.7% |
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
- 159,677
- Citizen Voting Age Population (CVAP)
- 120,745
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 147,276 | 92.2% |
| Hispanic | 12,398 | 7.8% |
| White | 137,300 | 86.0% |
| Black | 1,034 | 0.6% |
| Asian | 1,978 | 1.2% |
| American Indian / Alaska Native | 1,022 | 0.6% |
| Native Hawaiian / Pacific Islander | 354 | 0.2% |
| Two or More Races | 533 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 114,238 | 94.6% |
| Hispanic | 6,507 | 5.4% |
| White | 107,139 | 88.7% |
| Black | 1,214 | 1.0% |
| Asian | 2,397 | 2.0% |
| American Indian / Alaska Native | 2,835 | 2.3% |
| Native Hawaiian / Pacific Islander | 305 | 0.3% |
| Two or More Races | 362 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
