Island County, WA

WA · Presidential Elections 1892–2024

D+16.4
2024 Margin
D+4.5%
2020→2024 Swing
D since 2008
Voting Streak
87K
Population

Island County, WA (Washington) voted D+16.4 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 29,595 votes (56.43%) to 20,967 (39.98%) for Trump.

This represents a D+4.5% swing toward Democrats compared to 2020. Island County is classified as a solid Democratic county. Island County has voted Democratic in every presidential election since 2008. The county has a population of approximately 86,836.

Quick Stats

2024 ResultD+16.4
2020→2024 SwingD+4.5%
Voting StreakD since 2008
Elections on Record34

Demographics

Population86,836
Median Age
44.8(US: 38.7)
College (BA+)
36.6%(US: 35.2%)
Median Income
$90,551(US: $80k)
White (non-Hisp)
76.6%(US: 57.6%)
Hispanic
8.7%(US: 19.1%)
Black
2.8%(US: 12.2%)
Asian
4.7%(US: 5.7%)
Homeownership
74.8%(US: 64.5%)
Poverty Rate
7.7%(US: 12.3%)
Veterans
15.3%(US: 6.2%)
Non-English (CVAP)
7.6%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Evangelical
40.7%(Major Center)
Catholic
6.1%(Below Average)
Mainline Protestant
4.7%
LDS/Mormon
3.6%(Above Average)

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

German
17.1%(1.4x)
English
16.2%Above Average(1.8x)
Irish
12.8%(1.4x)
Mexican
6.2%
Italian
4.0%
American Heritage
3.9%
+ 3 more reported ancestry groups

Age Distribution

Median:44.8 yrs(US: 38.5)
Under 18
17.3%↓
18-29
8.2%↓
30-44
19.1%
45-64
28.6%↑
65+
26.8%↑
National average

Employment by Industry

Census ACS
Professional & Technical
12.9%
Retail Trade
12.6%(1.2x US)
Manufacturing
10.3%
Educational Services
9.0%
Construction
7.8%(1.2x US)
Healthcare & Social Services
4.5%
National average
+ 1 more sectors

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202456.4%(29,595)40.0%(20,967)D+16.4D+4.5
202054.2%(29,213)42.2%(22,746)D+12.0D+6.4
201647.3%(20,960)41.7%(18,465)D+5.6D+1.2
201250.7%(21,478)46.3%(19,605)D+4.4R+1.8
200852.3%(22,058)46.1%(19,426)D+6.2D+10.2
200447.2%(18,216)51.2%(19,754)R+4.0D+1.0
200044.8%(14,778)49.7%(16,408)R+4.9R+4.1
199642.7%(12,157)43.5%(12,387)R+0.8R+0.9
199235.2%(9,555)35.1%(9,526)D+0.1D+19.0
198839.9%(8,510)58.8%(12,552)R+18.9D+13.6

Source: Official state election returns via MIT Election Data + Science Lab

Presidential Margin Trend

Island County, WA • 1892–2024

D+R++60+40+200-20-40-6018921900190819161924193219401948195619641972198019881996200420122020
Democratic margin
Republican margin

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202457.3%(29,216)42.5%(21,677)D+14.8D+4.5
202255.0%(23,680)44.8%(19,275)D+10.2D+3.9
201853.2%(22,341)46.8%(19,672)D+6.4R+2.7
201654.5%(23,695)45.5%(19,761)D+9.1R+1.9
201255.5%(23,024)44.5%(18,475)D+11.0D+11.5
201049.7%(17,794)50.3%(17,980)R+0.5R+11.6
200654.3%(16,289)43.3%(12,977)D+11.0D+7.8
200450.6%(19,181)47.4%(17,969)D+3.2D+11.1
200044.9%(14,676)52.7%(17,249)R+7.9R+16.9
199854.5%(13,639)45.5%(11,378)D+9.0D+28.2

Source: Official state election returns via MIT Election Data + Science Lab

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202454.0%(27,931)45.8%(23,677)D+8.2D+2.4
202052.7%(28,239)47.0%(25,145)D+5.8D+5.2
201650.2%(21,797)49.6%(21,560)D+0.5D+7.2
201246.7%(19,324)53.3%(22,082)R+6.7R+7.1
200850.2%(20,891)49.8%(20,688)D+0.5D+8.7
200444.8%(16,895)53.0%(20,000)R+8.2R+18.5
200054.3%(17,736)44.0%(14,381)D+10.3D+5.1
199652.6%(14,874)47.4%(13,409)D+5.2D+13.6
199245.8%(12,429)54.2%(14,704)R+8.4R+22.7
198857.1%(12,369)42.9%(9,277)D+14.3D+26.3

Source: Official state election returns via MIT Election Data + Science Lab

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