state senate districtWashington 45th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004D+11.9
2008D+24.1
2012D+19.8
2016D+38.1
2020D+44.6
2024D+44.0
net swing · 2004→2024D+32.1D+11.9 → D+44.0
vs. U.S. · 2024D+45.5D+44.0 vs R+1.5
presidential returns
2024 turnout 82.4% of 100,250 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
57,567
21,207
3,870
82,644
100,250
82.4%
2020
61,590
22,746
2,812
87,148
97,734†
89.2%
2016
47,986
20,052
5,209
73,247
92,052†
79.6%
2012
43,325
28,646
2,160
74,131
86,162†
86.0%
2008
43,182
26,182
1,075
70,439
82,646†
85.2%
2004
38,655
30,315
920
69,890
79,131†
88.3%
† 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 SD 45WashingtonUnited States
German14.2%14.5%12.5%
English13.0%12.1%9.5%
Irish10.2%9.8%9.4%
Italian4.0%3.1%4.8%
Norwegian4.0%4.0%—
American3.0%3.8%5.3%
Swedish2.8%1.8%—
Scottish2.7%2.6%1.3%
Chinese6.3%2.2%1.3%
Asian Indian5.5%2.0%1.4%
Filipino2.5%1.5%0.9%
Vietnamese2.4%1.1%0.6%
Korean1.8%0.9%0.4%
Japanese1.0%0.4%0.2%
Taiwanese0.4%——
Cambodian0.3%0.3%—
Mexican4.7%10.8%11.3%
Salvadoran0.3%0.4%0.7%
Puerto Rican0.3%0.5%1.8%
Spaniard0.3%0.4%—
Guatemalan0.2%0.2%0.5%
Honduran0.2%—0.3%
Colombian0.2%0.2%0.4%
Spanish0.2%0.3%—
African American†0.9%2.3%9.9%
Ethiopian0.3%0.3%—
African0.2%0.4%0.5%
Somali0.2%0.2%—
Samoan0.6%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 SD 45
Washington
United States
Median age
39.6
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 SD 45
Washington
United States
Median household income
$180,159
$98,141
$84,427
Poverty rate
6.0%
9.9%
12.5%
Bachelor's degree or higher (25+)
56.7%
39.3%
35.6%
Languages at home
Measure
WA SD 45
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 SD 45
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 45th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+11.9%
2008
+24.1%
2012
+19.8%
2016
+38.1%
2020
+44.6%
2024
+44.0%
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
D
69.7%Harris57,567
25.7%Trump21,207
4.7%
D+44.0
R+0.6
D+45.5
82,644
D
70.7%Biden61,590
26.1%Trump22,746
3.2%
D+44.6
D+6.4
D+40.1
87,148
D
65.5%Clinton47,986
27.4%Trump20,052
7.1%
D+38.1
D+18.3
D+36.0
73,247
D
58.4%Obama43,325
38.6%Romney28,646
2.9%
D+19.8
R+4.3
D+15.9
74,131
D
61.3%Obama43,182
37.2%McCain26,182
1.5%
D+24.1
D+12.2
D+16.9
70,439
D
55.3%Kerry38,655
43.4%Bush30,315
1.3%
D+11.9
—
D+14.4
69,890
current representation
Current officeholders
DManka DhingraState Senate · 45
State legislative officeholder from OpenStates nightly current-legislator data.
Washington's 45th Senate District, anchored in the Issaquah-Sammamish suburbs east of Lake Washington, has trended competitive as tech-sector growth reshaped its demographics, making it a reliable bellwether for shifts across the Eastside.
Across the recorded series it reached a Democratic high of 44.6 points in 2020. Between 2020 and 2024 the district moved 0.6 points toward the Republican candidate; the 2024 margin was 44.0 points.
A population of 157,231, a 61% non-Hispanic-white share, and a median household income of $180,159 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (Senate) District 41 and Legislative (Senate) District 1.
Akashic
Political twins — state-senate districts
The state-senate 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 45th State Senate District. Akashic. https://akashic.app/sld-upper/53045/. Accessed May 20, 2026. License: CC BY 4.0.
How did Washington 45th State Senate District vote in 2024?
In 2024, Washington 45th State Senate District voted Democratic by 44.0 points (D+44.0), carried by the Democratic candidate. Out of 82,644 votes cast, 57,567 went Democratic and 21,207 went Republican.
How many people live in Washington 45th State Senate District?
Washington 45th State Senate District has a population of 157,231 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington 45th State Senate District?
Median household income in Washington 45th State Senate District is $180,159 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Washington 45th State Senate District?
Akashic tracks 6 presidential elections in Washington 45th State Senate District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
