Washington State Senate District 31
Leans Republican — shifted 13.4pp toward Republicans in 2024 — 157K residents
Washington State Senate District 31 is a state senate district that has a population of 157,060. In the 2024 presidential election, it voted Republican with a margin of R+6.1. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 45.2% | 51.3% | R+6.1 | R+13.4 |
| 2020* | 52.0% | 44.7% | D+7.3 | D+15.8 |
| 2016* | 41.6% | 50.1% | R+8.5 | R+6.3 |
| 2012* | 48.9% | 51.1% | R+2.1 | R+4.1 |
| 2008* | 49.9% | 48.0% | D+1.9 | — |
* Pre-2022 results projected onto current district boundaries. Actual boundaries at the time of the election may have differed.
What defines WA-SD-31?
WA-SD-31 has flipped between parties in each of the last three elections — a fiercely contested battleground. It has a working-class electorate (0% college-educated) — a demographic increasingly aligned with Republicans nationwide.
Similar state senate districts
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Key Insights
- The 2008 election was decided by just 1.9 points — razor-thin
- Swung 13.4 points toward Republican between 2020 and 2024
- Won by both parties in recent history — Democrats most recently in 2020, Republicans in 2024
Who Lives Here
| Group | WA-SD-31 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 72.6% | 63.1% | 57.4% |
Hispanic / Latino | 9.6% | 14.4% | 19.3% |
Multiracial / Other | 7.6% | 6.8% | 4.0% |
Asian | 4.7% | 9.8% | 6.0% |
Black / African American | 2.3% | 4.0% | 12.2% |
Native American / Alaska Native | 2.3% | 1.2% | 0.9% |
Native Hawaiian / Pacific Islander | 0.9% | 0.7% | 0.2% |
Who lives in Washington State Senate District 31? 157,060 residents as of the 2020 Census.
Demographics
Scale, voting-age share, and this geography's footprint inside the national electorate.
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.
Turnout in WA-SD-31
How competitive is WA-SD-31?
Other Washington State Senate Districts
48 total| Name | Margin ↓ |
|---|---|
| WA-SD-43 | D+81.3 |
| WA-SD-36 | D+80.9 |
| WA-SD-46 | D+78.3 |
| WA-SD-37 | D+73.3 |
| WA-SD-34 | D+69.6 |
| WA-SD-32 | D+53.0 |
| WA-SD-48 | D+44.9 |
| WA-SD-41 | D+44.5 |
| WA-SD-01 | D+44.4 |
| WA-SD-45 | D+44.0 |
| WA-SD-27 | D+43.8 |
| WA-SD-40 | D+40.9 |
| WA-SD-22 | D+38.2 |
| WA-SD-11 | D+36.9 |
| WA-SD-21 | D+36.4 |
| WA-SD-33 | D+36.1 |
| WA-SD-23 | D+32.5 |
| WA-SD-49 | D+24.5 |
| WA-SD-03 | D+23.8 |
| WA-SD-05 | D+23.6 |
| WA-SD-28 | D+20.8 |
| WA-SD-44 | D+20.7 |
| WA-SD-29 | D+20.6 |
| WA-SD-30 | D+19.8 |
| WA-SD-38 | D+19.3 |