congressional districtWashington 9th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004D+25.0
2008D+36.4
2012D+36.4
2016D+43.7
2020D+44.7
2024D+40.9
net swing · 2004→2024D+15.9D+25.0 → D+40.9
vs. U.S. · 2024D+42.4D+40.9 vs R+1.5
presidential returns
2024 turnout 63.3% of 505,756 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
219,058
88,011
13,045
320,114
505,756
63.3%
2020
254,206
94,121
9,703
358,030
493,064†
72.6%
2016
194,360
70,606
17,936
282,902
464,396†
60.9%
2012
189,025
85,950
8,251
283,226
434,682†
65.2%
2008
179,626
82,679
4,259
266,564
416,946†
63.9%
2004
160,779
95,654
3,778
260,211
399,211†
65.2%
† 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
District 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-9WashingtonUnited States
German9.7%14.5%12.5%
English8.9%12.1%9.5%
Irish6.9%9.8%9.4%
Italian2.7%3.1%4.8%
Norwegian2.7%4.0%—
American2.0%3.8%5.3%
Swedish1.9%1.8%—
Scottish1.9%2.6%1.3%
Chinese6.6%2.2%1.3%
Asian Indian5.8%2.0%1.4%
Filipino2.7%1.5%0.9%
Vietnamese2.5%1.1%0.6%
Korean1.8%0.9%0.4%
Japanese1.0%0.4%0.2%
Taiwanese0.5%——
Cambodian0.3%0.3%—
Mexican9.2%10.8%11.3%
Salvadoran0.7%0.4%0.7%
Puerto Rican0.5%0.5%1.8%
Spaniard0.5%0.4%—
Guatemalan0.4%0.2%0.5%
Honduran0.4%—0.3%
Colombian0.4%0.2%0.4%
Spanish0.4%0.3%—
African American†6.3%2.3%9.9%
Ethiopian1.7%0.3%—
African1.2%0.4%0.5%
Somali1.2%0.2%—
Nigerian0.4%—0.2%
Kenyan0.4%——
Samoan1.9%0.2%—
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-9
Washington
United States
Median age
37.4
38.5
39.1
Age 18–24
8.1%
8.5%
9.2%
Age 65 and older
14.0%
16.7%
17.2%
Household economy
Measure
WA-9
Washington
United States
Median household income
$100,420
$98,141
$84,427
Poverty rate
10.9%
9.9%
12.5%
Bachelor's degree or higher (25+)
56.7%
39.3%
35.6%
Languages at home
Measure
WA-9
Washington
United States
Speaks a non-English language at home
31.1%
21.5%
22.3%
Spanish
7.1%
9.1%
13.6%
Other Indo-European
4.5%
2.1%
2.0%
Chinese (incl. Mandarin & Cantonese)
5.1%
1.9%
1.1%
Other Asian & Pacific Island
3.8%
2.1%
1.1%
Religious landscape
Measure
WA-9
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 9th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+25.0%
2008
+36.4%
2012
+36.4%
2016
+43.7%
2020
+44.7%
2024
+40.9%
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.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 17 House races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
9
D
97.9%273,381
0.0%0
279,298
2022
9
D
71.6%171,746
28.2%67,631
239,848
2020
9
D
74.1%258,771
25.7%89,697
349,050
2018
9
D
100.0%240,567
0.0%0
240,567
2016
9
D
72.9%205,165
27.1%76,317
281,482
2014
9
D
70.8%118,132
29.2%48,662
166,794
2012
9
D
71.6%192,034
28.4%76,105
268,139
2010
9
D
54.9%123,743
45.1%101,851
225,594
2008
9
D
65.4%176,295
34.6%93,080
269,375
2006
9
D
65.7%119,038
34.3%62,082
181,120
2004
9
D
63.3%162,433
34.4%88,304
256,671
2002
9
D
58.5%95,805
38.6%63,146
163,710
2000
9
D
61.7%135,452
35.0%76,766
219,623
1998
9
D
64.7%111,948
35.3%61,108
173,056
1996
9
D
50.1%105,236
47.3%99,199
209,867
1994
9
R
48.2%72,451
51.8%77,833
150,284
1992
9
D
52.1%110,902
43.2%91,910
212,919
Anchored in south Seattle and its inner suburbs, WA-09 regularly posts some of the widest presidential margins in the country, reflecting a dense, majority-minority electorate with strong labor-organizing roots.
Across the recorded series it reached a Democratic high of 44.7 points in 2020. Between 2020 and 2024 the district moved 3.8 points toward the Republican candidate; the 2024 margin was 40.9 points.
A population of 768,394, a 41% non-Hispanic-white share, and a median household income of $100,420 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 7 and Congressional District 16.
Akashic
Political twins — districts
The congressional 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 →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington 9th Congressional District. Akashic. https://akashic.app/cd/5309/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Washington 9th Congressional District vote in 2024?
In 2024, Washington 9th Congressional District voted Democratic by 40.9 points (D+40.9), carried by the Democratic candidate. Out of 320,114 votes cast, 219,058 went Democratic and 88,011 went Republican.
How many people live in Washington 9th Congressional District?
Washington 9th Congressional District has a population of 768,394 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington 9th Congressional District?
Median household income in Washington 9th Congressional District is $100,420 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Washington 9th Congressional District?
Akashic tracks 6 presidential elections in Washington 9th Congressional District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
