Washington 9th State Senate District, Washington: Tossup district. In 2024, voted R+8%. Republican peak: R+45 in 1904.
Key facts
- 2024 presidential margin
- R+8MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 372,7522024 5-year
- Median household income
- $74,2562024 5-year
- White (non-Hispanic)
- 80.4%2024 5-year
- Black
- 1.8%2024 5-year
- Hispanic / Latino
- 10.0%2024 5-year
- Peak Democratic margin
- D+38 in 1936MIT Election Lab
- Peak Republican margin
- R+45 in 1904MIT Election Lab
Constituent county margins for Legislative (Senate) District 9, WAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 82,143 | 97,618 | 186,582 | ||
| R | 85,657 | 99,992 | 192,708 | ||
| R | 59,975 | 77,437 | 156,192 | ||
| R | 65,697 | 79,521 | 150,596 | ||
| R | 69,017 | 75,310 | 147,838 | ||
| R | 57,901 | 78,710 | 138,977 | ||
| R | 48,937 | 66,437 | 120,886 | ||
| D | 50,033 | 48,231 | 112,903 | ||
| D | 48,709 | 43,396 | 119,470 | ||
| R | 48,735 | 50,893 | 101,045 | ||
| R | 42,610 | 65,562 | 109,427 | ||
| R | 36,152 | 58,326 | 105,243 | ||
| R | 41,155 | 51,584 | 96,017 | ||
| R | 33,791 | 57,439 | 95,803 | ||
| R | 36,119 | 43,080 | 85,459 | ||
| D | 46,610 | 39,270 | 85,953 | ||
| R | 40,813 | 47,302 | 88,277 | ||
| R | 36,311 | 48,030 | 84,421 | ||
| R | 33,303 | 47,347 | 80,962 | ||
| D | 37,587 | 31,222 | 70,508 | ||
| D | 34,413 | 31,395 | 66,141 | ||
| D | 36,320 | 30,435 | 67,270 | ||
| D | 41,140 | 17,934 | 61,033 | ||
| D | 32,279 | 21,665 | 56,281 | ||
| R | 16,382 | 32,673 | 49,409 | ||
| R | 6,979 | 22,140 | 44,675 | ||
| R | 12,708 | 26,961 | 42,902 | ||
| D | 23,287 | 20,888 | 46,506 | ||
| O | 13,420 | 6,685 | 39,955 | ||
| R | 8,954 | 14,132 | 25,069 | ||
| R | 5,270 | 15,205 | 22,185 | ||
| D | 8,852 | 8,706 | 18,389 | ||
| D | 10,244 | 5,276 | 15,742 | ||
| R | 5,213 | 6,064 | 15,066 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
19.2%
English
13.9%
Irish
12.3%
American
5.4%
Italian
3.8%
Scottish
2.9%
French
2.5%
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.
Age distribution by sex
Median age: 37.4 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.
Median household income
2024 inflation-adjusted dollars
$74,256
Legislative (Senate) District 9 ranks near the middle of US counties.
Legislative (Senate) District 9$74,256
Washington$98,141
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.6%
Child poverty is below the national average.
Children under 1813.7%
Working age (18–64)13.7%
Seniors (65+)10.4%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
89.9%
speak English only
Spanish5.1%
Other Indo-European2.4%
Asian & Pacific Islander2.0%
Other languages0.6%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 59.6% of residents not counted as adherents by any reporting body.
Washington 9th State Senate District in the Pacific Northwest delivered a near-tie in 2024, with the Republican candidate carrying the district by eight points — well within the historical noise of how the district votes.
The district's recent history is a story of close margins. The Democratic margin reached thirty-eight points in 1936; the Republican margin reached forty-five points in 1904. Most other elections have been decided by single-digit points.
Its demographics — a population of 372,752, a 80% non-Hispanic-white share, a median household income of $74,256 — situate the district close to national averages on several dimensions.
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.
Legislative (Senate) District 9, Washington. Akashic. https://akashic.app/sld-upper/53009/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Legislative (Senate) District 9, Washington vote in 2024?
In 2024, Legislative (Senate) District 9, Washington voted Republican by 8.3 points (R+8), carried by the Republican candidate. Out of 186,582 votes cast, 82,143 went Democratic and 97,618 went Republican.
What is Legislative (Senate) District 9, Washington's political archetype?
Akashic classifies Legislative (Senate) District 9, Washington as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 11 times, Republican 22 times, and other 1 times.
When did Legislative (Senate) District 9, Washington last vote Democratic?
The most recent presidential election in which Legislative (Senate) District 9, Washington voted Democratic was 1996.
How many people live in Legislative (Senate) District 9, Washington?
Legislative (Senate) District 9, Washington has a population of 372,752 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Legislative (Senate) District 9, Washington?
Median household income in Legislative (Senate) District 9, Washington is $74,256 — below the national median of $80,734. The Washington state median is $98,141.
What is the political history of Legislative (Senate) District 9, Washington?
Akashic tracks 38 presidential elections in Legislative (Senate) District 9, Washington from 1876 to 2024. Of those, 11 went Democratic and 22 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.