Akashic
1876–2024
Pennsylvania 4th Congressional District

Pennsylvania 4th Congressional District delivered D+15.8 in 2024.

A reliably Democratic suburban district anchored by Montgomery County's dense commuter belt.

20082024·5 elections
PA
Pennsylvania 4th Congressional District
HarrisD+15.8
2024
2024 presidential margin for Pennsylvania 4th Congressional DistrictThe boundary of Pennsylvania 4th Congressional District, filled by its 2024 presidential margin (D+15.8), over faint outlines of the counties it is drawn from.Pennsylvania 4th Congressional District · D+15.8
How it voted
Share of the 2024 vote
Kamala HarrisDemocratic57.4%268,629
Donald TrumpRepublican41.6%194,640
OtherAll other candidates1.0%4,865
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 2 counties it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1876–2024, on its current boundaries.
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +15.8% in 2024.+15.8%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+17.0%
2012+9.7%
2016+13.9%
2020+18.9%
2024+15.8%
DemocraticRepublican
current representation
Current officeholders
D
Madeleine Dean
U.S. House · PA-04 · Democratic
D
John Karl Fetterman
U.S. Senate · Democratic
R
David Harold McCormick
U.S. Senate · Republican

Federal officeholders only. State and local officeholders are planned for the next data pass.

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
57.4%Harris268,629
41.6%Trump194,640
1.0%
+15.8%
468,134
D
58.9%Biden269,338
40.0%Trump182,842
1.1%incl. Jorgensen
+18.9%
457,193
D
55.0%Clinton215,658
41.1%Trump161,091
3.8%incl. Johnson
+13.9%
391,773
D
54.8%Obama200,456
45.2%Romney165,069
0.0%
+9.7%
365,525
D
57.9%Obama220,004
41.0%McCain155,588
1.1%
+17.0%
379,686

U.S. House

Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
YearDistrictWonDemocraticRepublicanTotal
20244D
59.1%269,066
40.9%186,457
455,523
20224D
61.3%224,799
38.7%141,986
366,785
20204D
59.5%264,637
40.5%179,926
444,563
20184D
63.5%211,524
36.5%121,467
332,991
20164R
33.9%113,372
66.1%220,628
334,000
20144R
25.5%50,250
74.5%147,090
197,340
20124R
34.4%104,643
59.7%181,603
303,980
20104D
50.8%120,827
49.2%116,958
237,785
20084D
55.9%186,536
44.1%147,411
333,947
20064D
51.9%131,847
48.0%122,049
254,084
20044R
35.9%116,303
63.1%204,329
323,917
20024R
35.4%71,674
64.6%130,534
202,218
20004R
41.0%100,995
59.0%145,390
246,385
19984D
63.8%103,183
36.2%58,485
161,685
19964D
64.2%142,621
35.8%79,448
222,167
19944D
64.2%119,115
35.8%66,509
185,630
19924D
78.5%186,684
20.4%48,484
237,922
19904D
55.9%74,114
44.1%58,469
132,583
19884D
69.8%124,041
29.5%52,402
177,699
19864D
60.4%86,133
38.7%55,165
142,594
19844D
56.8%114,040
43.2%86,769
200,809
19824D
60.1%100,481
38.6%64,539
167,102
19804R
36.7%73,895
63.3%127,475
201,370
19784R
44.2%87,555
55.8%110,445
198,000
19764D
67.5%144,890
32.5%69,700
214,590

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
YearWonDemocraticRepublicanTotal
2024R
48.6%3,384,180
48.8%3,399,295
6,963,137
2022D
51.2%2,751,012
46.3%2,487,260
5,368,021
2018D
55.6%2,777,680
42.7%2,134,848
4,994,643
2016R
47.3%2,865,012
48.8%2,951,702
6,051,856
2012D
53.7%3,021,364
44.6%2,509,132
5,627,422
2010R
49.0%1,948,716
51.0%2,028,945
3,977,661
2006D
58.7%2,392,984
41.3%1,684,778
4,077,762
2004R
42.0%2,334,126
52.6%2,925,080
5,558,525
2000R
45.5%2,154,908
52.4%2,481,962
4,735,116
1998R
34.8%1,028,839
61.3%1,814,180
2,957,499
1994R
46.9%1,648,481
49.4%1,735,691
3,513,112
1992R
46.3%2,224,966
49.1%2,358,125
4,802,410
1988R
32.4%1,416,764
66.5%2,901,715
4,366,598
1986R
42.9%1,448,219
56.4%1,906,537
3,378,226
1982R
39.2%1,412,965
59.3%2,136,418
3,604,108
1980R
48.0%2,122,391
50.5%2,230,404
4,418,042
1976R
46.8%2,126,977
52.4%2,381,891
4,546,353

Demographics

Demographic profile

Demographic Profile

Key indicators compared across containing geographies

Demographic Profile. Key indicators compared across containing geographies. ACS values are survey estimates and may include margins of error. Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
IndicatorPA-4Congressional districtPennsylvaniaStateUnited StatesNation
Race & Ethnicity
White77.3%74.5%61.0%
Black8.2%10.7%12.2%
Asian6.1%3.8%6.0%
Two or more races5.8%7.1%12.6%
Other race2.6%3.9%8.2%
Hispanic or Latino5.8%8.7%19.3%
Income & Age
Median household income$110,538$77,971$84,427
Poverty rate6.5%11.7%12.5%
Median age42.141.239.1
Age 18–248.3%8.9%9.2%
Age 65 and older18.5%19.5%17.2%
Education & Language
Bachelor's degree or higher (25+)47.4%35.2%35.6%
Speaks a non-English language at home16.2%12.4%22.3%
Spanish7.1%5.6%13.6%
Other Indo-European2.5%1.7%2.0%
Chinese (incl. Mandarin & Cantonese)1.1%0.8%1.1%
Other Asian & Pacific Island1.0%0.7%1.1%
Ancestry
Largest ancestryGerman 20.8%German 21.6%German 12.5%
2nd-largest ancestryIrish 16.9%Irish 14.8%Mexican 11.3%
3rd-largest ancestryItalian 12.2%Italian 10.6%English 9.5%
Religion
Catholic28.0%County context21.9%18.6%
Evangelical Protestant8.1%County context9.3%16.5%
Unaffiliated or unclaimed47.7%County context53.1%51.5%
Mainline Protestant10.3%County context10.3%5.2%

ACS values are survey estimates and may include margins of error.

Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the origins and ancestries reported within it.
Reported ancestry · ACS B04006
German
20.8%
Irish
16.9%
Italian
12.2%
English
8.5%
Polish
5.3%
American
3.9%
Russian
1.6%
Scottish
1.2%
Reported ancestry · ACS B04006
African American identity is recorded by the ACS race question; the ancestry item enumerates specific African and Caribbean ancestries only.
Jamaican
0.4%
African
0.4%
Haitian
0.3%
Nigerian
0.2%
Detailed group · ACS B02015
Asian Indian
2.4%
Chinese
1.4%
Korean
1.0%
Vietnamese
0.5%
Filipino
0.4%
Bangladeshi
0.2%
The ACS does not publish subgroup detail for people reporting two or more races.
Specific origin · ACS B03001
Puerto Rican
3.8%
Mexican
2.4%
Dominican
1.8%
Colombian
0.4%
Cuban
0.2%
Honduran
0.2%
Salvadoran
0.2%
Spanish
0.2%
American Indian, Alaska Native, Native Hawaiian, Pacific Islander, and other single-race responses combined.
Source · American Community Survey 5-year estimates, 2024 release. Race shares: B02001 · B03003. Subgroup detail: B03001 (Hispanic or Latino specific origin), B02015 (Asian groups), B02020 · B02016 (American Indian/Alaska Native tribes and Pacific Islander groups), B04006 (reported ancestry). Hispanic/Latino is an ethnicity that overlaps the race categories, so group shares can total more than 100%. All subgroup rows are shares of total population; ancestry is self-reported and multiple-response, so rows do not sum to the parent group's share.
2024 ACS
Language at home
Population aged 5 and older
83.8%
speak English only
Spanish7.1%
Other Indo-European2.5%
Chinese (incl. Mandarin & Cantonese)1.1%
Other Asian & Pacific Island1.0%
Russian, Polish, or other Slavic0.9%
Korean0.9%
Vietnamese0.5%
Other languages0.5%
French (incl. Cajun & Haitian)0.5%
Arabic0.4%
German or other West Germanic0.4%
Tagalog (incl. Filipino)0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic
28.0%
Mainline Protestant
10.3%
Evangelical Protestant
8.1%
Jewish
2.6%
Muslim
1.0%
Other Christian
0.8%
Orthodox Christian
0.5%
Black Protestant
0.5%
Latter-day Saints
0.3%
Hindu
0.2%
Unaffiliated or not counted47.7%
Source · 2020 US Religion Census. The unaffiliated-or-not-counted share is everyone not claimed as an adherent by any reporting body — uncounted congregations as well as the religiously unaffiliated.

PA-04 covers the heavily populated suburbs northwest of Philadelphia, where college-educated voters and a diversifying professional class have widened Democratic margins to over 20 points in recent presidential cycles.

Across the recorded series it reached a Democratic high of 18.9 points in 2020. Between 2020 and 2024 the district moved 3.1 points toward the Republican candidate; the 2024 margin was 15.8 points.

A population of 765,422, a 77% non-Hispanic-white share, and a median household income of $110,538 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.
Pennsylvania 4th Congressional District. Akashic. https://akashic.app/cd/4204/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Pennsylvania 4th Congressional District vote in 2024?
In 2024, Pennsylvania 4th Congressional District voted Democratic by 15.8 points (D+15.8), carried by the Democratic candidate. Out of 468,134 votes cast, 268,629 went Democratic and 194,640 went Republican.
How many people live in Pennsylvania 4th Congressional District?
Pennsylvania 4th Congressional District has a population of 765,422 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Pennsylvania 4th Congressional District?
Median household income in Pennsylvania 4th Congressional District is $110,538 — above the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Pennsylvania 4th Congressional District?
Akashic tracks 5 presidential elections in Pennsylvania 4th Congressional District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.