Washington 10th Congressional District: Diversifying Metro district. In 2024, voted D+18%. Democratic peak: D+18 in 2024.
Key facts
- 2024 presidential margin
- D+18MIT Election Lab
- Political typology
- Diversifying MetroAkashic typology
- Population
- 336,0872024 5-year
- Median household income
- $97,9092024 5-year
- White (non-Hispanic)
- 68.5%2024 5-year
- Black
- 5.1%2024 5-year
- Hispanic / Latino
- 11.6%2024 5-year
- Peak Democratic margin
- D+18 in 2020MIT Election Lab
DW-NOMINATE
Member ideology
D
STRICKLAND, Marilyn
STRICKLAND scores -0.44 on the first NOMINATE dimension (−1 most liberal, +1 most conservative).
Predecessors: HECK, Denny (2019–2021), HECK, Denny (2017–2019), HECK, Denny (2015–2017), HECK, Denny (2013–2015)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
2024 presidential election
Congressional District 10
HarrisD+18
How it voted
Share of the 2024 vote
| Kamala Harris ✓Democratic | 57.0% | 204,654 |
|---|---|---|
| Donald TrumpRepublican | 39.1% | 140,427 |
| OtherAll other candidates | 3.8% | 13,705 |
D+60R+60
2 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2008 | +17.0% |
| 2012 | +16.4% |
| 2016 | +13.1% |
| 2020 | +17.6% |
| 2024 | +17.9% |
DemocraticRepublican
5 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 204,654 | 140,427 | 358,786 | ||
| D | 216,875 | 149,878 | 381,161 | ||
| D | 151,049 | 113,166 | 289,586 | ||
| D | 162,646 | 116,710 | 279,356 | ||
| D | 161,381 | 113,788 | 280,447 |
Congressional elections · 17 Senate races
U.S. Senate
| Year | Won | D % | R % | Total |
|---|---|---|---|---|
| 2024 | D | 59.1% | 40.6% | 3,812,391 |
| 2022 | D | 57.1% | 42.6% | 3,047,900 |
| 2018 | D | 58.4% | 41.6% | 3,086,168 |
| 2016 | D | 59.0% | 41.0% | 3,243,317 |
| 2012 | D | 60.5% | 39.5% | 3,069,417 |
| 2010 | D | 52.4% | 47.6% | 2,511,094 |
| 2006 | D | 56.9% | 39.9% | 2,083,734 |
| 2004 | D | 55.0% | 42.7% | 2,818,651 |
| 2000 | D | 48.7% | 48.6% | 2,461,379 |
| 1998 | D | 58.4% | 41.6% | 1,888,561 |
| 1994 | R | 44.3% | 55.7% | 1,700,173 |
| 1992 | D | 54.0% | 46.0% | 2,218,802 |
| 1988 | R | 48.9% | 51.1% | 1,848,542 |
| 1986 | D | 50.7% | 48.7% | 1,337,367 |
| 1982 | D | 69.0% | 24.3% | 1,368,476 |
| 1980 | R | 45.8% | 54.2% | 1,728,369 |
| 1976 | D | 71.8% | 24.2% | 1,491,111 |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
15.6%
English
12.1%
Irish
11.0%
American
3.8%
Italian
3.3%
Scottish
2.8%
French
2.4%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 38.7 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$97,909
Congressional District 10 ranks near the middle of US counties.
Congressional District 10$97,909
Washington$98,141
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
9.2%
Child poverty is below the national average.
Children under 1810.8%
Working age (18–64)8.8%
Seniors (65+)9.0%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
86.2%
speak English only
Spanish5.4%
Asian & Pacific Islander5.0%
Other Indo-European2.6%
Other languages0.7%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 59.9% of residents not counted as adherents by any reporting body.
Washington's 10th stretches across the south Puget Sound region, anchored by Olympia and Lacey, where state-government employment and suburban growth have reinforced a consistent Democratic margin of roughly 15 points in recent presidential cycles.
Across the recorded series it reached a Democratic high of eighteen points in 2024. The 2024 margin was eighteen points.
A population of 336,087, a 69% non-Hispanic-white share, and a median household income of $97,909 describe the district.
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.
Congressional District 10, Washington. Akashic. https://akashic.app/cd/5310/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Congressional District 10, Washington vote in 2024?
In 2024, Congressional District 10, Washington voted Democratic by 17.9 points (D+18), carried by the Democratic candidate. Out of 358,786 votes cast, 204,654 went Democratic and 140,427 went Republican.
What is Congressional District 10, Washington's political typology?
Akashic places Congressional District 10, Washington in the "Diversifying Metro" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 5 elections in the dataset, the district has voted Democratic 5 times, Republican 0 times, and other 0 times.
How many people live in Congressional District 10, Washington?
Congressional District 10, Washington has a population of 336,087 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Congressional District 10, Washington?
Median household income in Congressional District 10, Washington is $97,909 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Congressional District 10, Washington?
Akashic tracks 5 presidential elections in Congressional District 10, Washington from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican. The district's typology — "Diversifying Metro" — captures where that record, its demographics, and its recent swing place it among American communities.