Overview
- District ID
- wa-sd-040
- State
- Washington
- Chamber
- Upper chamber (state senate)
- District Code
- 040
- Land Area
- 408.2 sq mi
- Water Area
- 597.3 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 14 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 | 157,080 | 100.0% | 20.4% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 121,382
- Active Voters
- 113,477 (93.5%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 54,787 (45.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 94,809 (78.1%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 76,465 (63.0%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 85,972 (70.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 66,288 (54.6%) | 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
- 158,487 (± 2,050)
- Median Age
- 41.5
- Median Household Income
- $86,990 (± $2,352)
- High School Graduate or Higher (age 25+)
- 94.4%
- Bachelor's Degree or Higher (age 25+)
- 45.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 26,535 | 16.7% |
| 18 to 64 | 95,946 | 60.5% |
| 65 and over | 36,006 | 22.7% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 23,166 | 14.6% |
| White, not Hispanic | 118,373 | 74.7% |
| Black, not Hispanic | 1,287 | 0.8% |
| Asian, not Hispanic | 4,887 | 3.1% |
| American Indian / Alaska Native, not Hispanic | 654 | 0.4% |
| Native Hawaiian / Pacific Islander, not Hispanic | 363 | 0.2% |
| Some other race, not Hispanic | 533 | 0.3% |
| Two or more races, not Hispanic | 9,224 | 5.8% |
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
- 151,439
- Citizen Voting Age Population (CVAP)
- 125,218
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 132,120 | 87.2% |
| Hispanic | 19,319 | 12.8% |
| White | 118,897 | 78.5% |
| Black | 1,289 | 0.9% |
| Asian | 3,737 | 2.5% |
| American Indian / Alaska Native | 643 | 0.4% |
| Native Hawaiian / Pacific Islander | 419 | 0.3% |
| Two or More Races | 855 | 0.6% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 113,953 | 91.0% |
| Hispanic | 11,268 | 9.0% |
| White | 103,765 | 82.9% |
| Black | 1,966 | 1.6% |
| Asian | 5,261 | 4.2% |
| American Indian / Alaska Native | 2,142 | 1.7% |
| Native Hawaiian / Pacific Islander | 310 | 0.2% |
| Two or More Races | 548 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
