Delaware County, PA

PA · Presidential Elections 1892–2024

D+23.7
2024 Margin
R+3.1%
2020→2024 Swing
D since 1992
Voting Streak
579K
Population

Delaware County, PA (Pennsylvania) voted D+23.7 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 201,324 votes (61.15%) to 123,421 (37.49%) for Trump.

This represents a R+3.1% swing toward Republicans compared to 2020. Delaware County is classified as a solid Democratic county. Delaware County has voted Democratic in every presidential election since 1992. The county has a population of approximately 579,222.

Quick Stats

2024 ResultD+23.7
2020→2024 SwingR+3.1%
Voting StreakD since 1992
Elections on Record34

Demographics

Population579,222
Median Age
39.1(US: 38.7)
College (BA+)
41.9%(US: 35.2%)
Median Income
$89,546(US: $80k)
White (non-Hisp)
63.3%(US: 57.6%)
Hispanic
5.0%(US: 19.1%)
Black
22.4%(US: 12.2%)
Asian
6.0%(US: 5.7%)
Homeownership
69.6%(US: 64.5%)
Poverty Rate
10.2%(US: 12.3%)
Veterans
4.9%(US: 6.2%)
Non-English (CVAP)
10.2%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
32.7%(Above Average)
Mainline Protestant
6.7%
Evangelical
4.8%(Below Average)
Black Protestant
1.0%
Jewish
0.2%
+ 1 more traditions

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

Irish
22.2%Above Average(2.4x)
Italian
14.4%Significant Hub(3.0x)
German
11.8%
English
7.7%
Polish
3.5%(1.4x)
Sub-Saharan African
3.2%Significant Hub(2.7x)
+ 4 more reported ancestry groups

Age Distribution

Median:39.1 yrs(US: 38.5)
Under 18
22.0%
18-29
9.8%↓
30-44
19.4%
45-64
31.4%↑
65+
17.4%
National average

Employment by Industry

Census ACS
Professional & Technical
12.9%
Retail Trade
10.2%
Manufacturing
7.7%(0.8x US)
Educational Services
6.6%(0.8x US)
Construction
5.9%(0.9x US)
Healthcare & Social Services
4.8%
National average

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202461.1%(201,324)37.5%(123,421)D+23.7R+3.1
202063.0%(206,423)36.1%(118,532)D+26.8D+4.5
201659.3%(177,402)37.0%(110,667)D+22.3D+1.0
201260.2%(171,792)38.8%(110,853)D+21.3R+0.1
200860.2%(178,870)38.8%(115,273)D+21.4D+6.6
200457.1%(162,601)42.3%(120,425)D+14.8D+3.1
200054.4%(134,861)42.7%(105,836)D+11.7D+1.8
199649.4%(115,946)39.5%(92,628)D+9.9D+8.9
199241.8%(111,210)40.8%(108,587)D+1.0D+21.9
198839.0%(96,144)60.0%(147,656)R+20.9D+3.4

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

Presidential Margin Trend

Delaware County, PA • 1892–2024

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

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202460.5%(197,424)37.2%(121,482)D+23.3R+4.8
202262.9%(157,599)34.8%(87,322)D+28.0R+3.4
201865.0%(163,216)33.6%(84,423)D+31.4D+18.8
201655.6%(163,377)43.0%(126,300)D+12.6R+11.5
201261.6%(170,477)37.5%(103,719)D+24.1D+11.8
201056.1%(113,844)43.9%(88,955)D+12.3R+11.1
200661.6%(128,052)38.3%(79,534)D+23.3D+30.2
200445.6%(125,407)52.4%(144,316)R+6.9D+2.8
200044.5%(105,712)54.2%(128,768)R+9.7D+27.8
199829.5%(44,704)66.9%(101,502)R+37.5R+28.6

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

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202267.8%(170,162)30.6%(76,880)D+37.2D+2.6
201866.7%(167,211)32.1%(80,576)D+34.6D+12.7
201460.9%(110,934)39.1%(71,180)D+21.8D+16.3
201052.8%(106,704)47.2%(95,448)D+5.6R+42.3
200673.9%(154,249)26.1%(54,403)D+47.8D+15.8
200265.1%(123,117)33.1%(62,649)D+32.0D+67.9
199827.4%(42,283)63.3%(97,746)R+35.9R+21.0
199434.7%(64,065)49.6%(91,589)R+14.9R+24.5
199054.8%(92,865)45.2%(76,531)D+9.6D+29.8
198639.5%(75,218)59.7%(113,628)R+20.2D+10.0

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

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