state house districtWashington 31st State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+8.7
2008D+1.5
2012R+2.6
2016R+9.7
2020R+7.2
2024R+7.1
net swing · 2004→2024D+1.7R+8.7 → R+7.1
vs. U.S. · 2024R+5.6R+7.1 vs R+1.5
presidential returns
2024 turnout 75.2% of 114,316 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
38,382
44,468
3,095
85,945
114,316
75.2%
2020
38,712
44,909
2,813
86,434
109,616†
78.9%
2016
25,560
31,585
5,177
62,322
101,682†
61.3%
2012
28,540
30,089
1,757
60,386
96,340†
62.7%
2008
28,495
27,629
1,199
57,323
93,173†
61.5%
2004
24,927
29,787
885
55,599
90,006†
61.8%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupWA HD 31WashingtonUnited States
German17.9%14.5%12.5%
English13.7%12.1%9.5%
Irish12.4%9.8%9.4%
Norwegian5.2%4.0%—
American4.4%3.8%5.3%
Italian4.2%3.1%4.8%
Swedish3.2%1.8%—
Scottish3.2%2.6%1.3%
Mexican6.3%10.8%11.3%
Puerto Rican0.8%0.5%1.8%
Spaniard0.4%0.4%—
Salvadoran0.3%0.4%0.7%
Spanish0.3%0.3%—
Filipino1.1%1.5%0.9%
Korean0.7%0.9%0.4%
Chinese0.7%2.2%1.3%
Vietnamese0.6%1.1%0.6%
Asian Indian0.5%2.0%1.4%
Cambodian0.4%0.3%—
Japanese0.2%0.4%0.2%
African American†1.8%2.3%9.9%
African0.2%0.4%0.5%
Samoan1.6%0.2%—
Chamorro1.0%——
Native Hawaiian0.5%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
WA HD 31
Washington
United States
Median age
38.3
38.5
39.1
Age 18–24
8.6%
8.5%
9.2%
Age 65 and older
14.8%
16.7%
17.2%
Household economy
Measure
WA HD 31
Washington
United States
Median household income
$122,456
$98,141
$84,427
Poverty rate
4.9%
9.9%
12.5%
Bachelor's degree or higher (25+)
33.8%
39.3%
35.6%
Languages at home
Measure
WA HD 31
Washington
United States
Speaks a non-English language at home
18.0%
21.5%
22.3%
Spanish
6.6%
9.1%
13.6%
Russian, Polish, or other Slavic
1.6%
1.5%
0.7%
Other Indo-European
1.3%
2.1%
2.0%
Other Asian & Pacific Island
2.4%
2.1%
1.1%
Religious landscape
Measure
WA HD 31
Washington
United States
Catholic
—
10.7%
18.6%
Evangelical Protestant
—
20.5%
16.5%
Unclaimed / not counted
—
58.8%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Washington 31st State House District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−8.7%
2008
+1.5%
2012
−2.6%
2016
−9.7%
2020
−7.2%
2024
−7.1%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
44.7%Harris38,382
51.7%Trump44,468
3.6%
R+7.1
D+0.1
R+5.6
85,945
R
44.8%Biden38,712
52.0%Trump44,909
3.3%
R+7.2
D+2.5
R+11.6
86,434
R
41.0%Clinton25,560
50.7%Trump31,585
8.3%
R+9.7
R+7.1
R+11.8
62,322
R
47.3%Obama28,540
49.8%Romney30,089
2.9%
R+2.6
R+4.1
R+6.4
60,386
D
49.7%Obama28,495
48.2%McCain27,629
2.1%
D+1.5
D+10.3
R+5.8
57,323
R
44.8%Kerry24,927
53.6%Bush29,787
1.6%
R+8.7
—
R+6.3
55,599
current representation
Current officeholders
RDrew StokesbaryState House · 31
RJosh PennerState House · 31
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of D+45.1, this district ranks among the most reliably left-leaning constituencies in the state, reflecting the dense urban or suburban concentration typical of heavily Democratic Pacific Northwest seats.
Across the recorded series it reached a Democratic high of 1.5 points in 2008 and a Republican high of 9.7 points in 2016. The 2024 margin was 7.1 points.
A population of 157,054, a 72% non-Hispanic-white share, and a median household income of $122,456 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (House) District 25 and Legislative (House) District 39.
Akashic
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington 31st State House District. Akashic. https://akashic.app/sld-lower/53031/. Accessed May 20, 2026. License: CC BY 4.0.
How did Washington 31st State House District vote in 2024?
In 2024, Washington 31st State House District voted Republican by 7.1 points (R+7.1), carried by the Republican candidate. Out of 85,945 votes cast, 38,382 went Democratic and 44,468 went Republican.
When did Washington 31st State House District last vote Democratic?
The most recent presidential election in which Washington 31st State House District voted Democratic was 2008.
How many people live in Washington 31st State House District?
Washington 31st State House District has a population of 157,054 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington 31st State House District?
Median household income in Washington 31st State House District is $122,456 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Washington 31st State House District?
Akashic tracks 6 presidential elections in Washington 31st State House District from 2004 to 2024. Of those, 1 went Democratic and 5 went Republican.
