congressional districtPennsylvania 4th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004D+6.7
2008D+17.0
2012D+9.6
2016D+13.9
2020D+18.9
2024D+15.8
net swing · 2004→2024D+9.1D+6.7 → D+15.8
vs. U.S. · 2024D+17.3D+15.8 vs R+1.5
presidential returns
2024 turnout 79.3% of 590,011 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
268,629
194,640
4,890
468,159
590,011
79.3%
2020
269,338
182,842
5,013
457,193
563,470†
81.1%
2016
215,658
161,091
15,024
391,773
552,899†
70.9%
2012
200,456
165,069
4,901
370,426
538,181†
68.8%
2008
220,004
155,588
4,094
379,686
523,986†
72.5%
2004
189,921
165,807
1,666
357,394
509,791†
70.1%
† 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
District 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
GroupPA-4PennsylvaniaUnited States
German22.8%21.6%12.5%
Irish18.6%14.8%9.4%
Italian13.4%10.6%4.8%
English9.3%8.3%9.5%
Polish5.8%5.4%2.2%
American4.3%4.4%5.3%
Russian1.8%——
Scottish1.3%1.1%1.3%
African American†6.5%8.7%9.9%
Jamaican0.4%0.3%0.4%
African0.4%0.4%0.5%
Haitian0.3%0.2%0.3%
Nigerian0.2%—0.2%
Asian Indian2.3%1.2%1.4%
Chinese1.3%0.9%1.3%
Korean0.9%0.2%0.4%
Vietnamese0.5%0.3%0.6%
Filipino0.4%0.2%0.9%
Bangladeshi0.2%——
Puerto Rican2.1%3.7%1.8%
Mexican1.3%1.4%11.3%
Dominican1.0%1.4%0.7%
Colombian0.2%0.2%0.4%
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
PA-4
Pennsylvania
United States
Median age
42.1
41.2
39.1
Age 18–24
8.3%
8.9%
9.2%
Age 65 and older
18.5%
19.5%
17.2%
Household economy
Measure
PA-4
Pennsylvania
United States
Median household income
$110,538
$77,971
$84,427
Poverty rate
6.5%
11.7%
12.5%
Bachelor's degree or higher (25+)
47.4%
35.2%
35.6%
Languages at home
Measure
PA-4
Pennsylvania
United States
Speaks a non-English language at home
16.2%
12.4%
22.3%
Spanish
7.1%
5.6%
13.6%
Other Indo-European
2.5%
1.7%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.1%
0.8%
1.1%
Other Asian & Pacific Island
1.0%
0.7%
1.1%
Religious landscape
Measure
PA-4
Pennsylvania
United States
Catholic
—
21.9%
18.6%
Evangelical Protestant
—
9.3%
16.5%
Unclaimed / not counted
—
53.1%
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.
Pennsylvania 4th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+6.7%
2008
+17.0%
2012
+9.6%
2016
+13.9%
2020
+18.9%
2024
+15.8%
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.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races · 17 Senate races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
4
D
59.1%269,066
40.9%186,457
455,523
2022
4
D
61.3%224,799
38.7%141,986
366,785
2020
4
D
59.5%264,637
40.5%179,926
444,563
2018
4
D
63.5%211,524
36.5%121,467
332,991
2016
4
R
33.9%113,372
66.1%220,628
334,000
2014
4
R
25.5%50,250
74.5%147,090
197,340
2012
4
R
34.4%104,643
59.7%181,603
303,980
2010
4
D
50.8%120,827
49.2%116,958
237,785
2008
4
D
55.9%186,536
44.1%147,411
333,947
2006
4
D
51.9%131,847
48.0%122,049
254,084
2004
4
R
35.9%116,303
63.1%204,329
323,917
2002
4
R
35.4%71,674
64.6%130,534
202,218
2000
4
R
41.0%100,995
59.0%145,390
246,385
1998
4
D
63.8%103,183
36.2%58,485
161,685
1996
4
D
64.2%142,621
35.8%79,448
222,167
1994
4
D
64.2%119,115
35.8%66,509
185,630
1992
4
D
78.5%186,684
20.4%48,484
237,922
1990
4
D
55.9%74,114
44.1%58,469
132,583
1988
4
D
69.8%124,041
29.5%52,402
177,699
1986
4
D
60.4%86,133
38.7%55,165
142,594
1984
4
D
56.8%114,040
43.2%86,769
200,809
1982
4
D
60.1%100,481
38.6%64,539
167,102
1980
4
R
36.7%73,895
63.3%127,475
201,370
1978
4
R
44.2%87,555
55.8%110,445
198,000
1976
4
D
67.5%144,890
32.5%69,700
214,590
U.S. Senate
The statewide Senate race, counted in this district — aggregated from the precinct-level returns that fall inside its boundaries (not a statewide figure).
Votes · MIT Election Lab (MEDSL) precinct returns (CC BY 4.0); aggregated to the district over VEST precinct geometry (CC BY-NC 4.0).
Year
Won
Democratic
Republican
Total
2024
D
56.7%265,623
40.9%191,760
468,453
2022
D
51.2%2,751,012
46.3%2,487,260
5,368,021
2018
D
55.6%2,777,680
42.7%2,134,848
4,994,643
2016
R
47.3%2,865,012
48.8%2,951,702
6,051,856
2012
D
53.7%3,021,364
44.6%2,509,132
5,627,422
2010
R
49.0%1,948,716
51.0%2,028,945
3,977,661
2006
D
58.7%2,392,984
41.3%1,684,778
4,077,762
2004
R
42.0%2,334,126
52.6%2,925,080
5,558,525
2000
R
45.5%2,154,908
52.4%2,481,962
4,735,116
1998
R
34.8%1,028,839
61.3%1,814,180
2,957,499
1994
R
46.9%1,648,481
49.4%1,735,691
3,513,112
1992
R
46.3%2,224,966
49.1%2,358,125
4,802,410
1988
R
32.4%1,416,764
66.5%2,901,715
4,366,598
1986
R
42.9%1,448,219
56.4%1,906,537
3,378,226
1982
R
39.2%1,412,965
59.3%2,136,418
3,604,108
1980
R
48.0%2,122,391
50.5%2,230,404
4,418,042
1976
R
46.8%2,126,977
52.4%2,381,891
4,546,353
2024 U.S. Senate — every candidate counted in this district
Robert Casey · Democrat56.7%265,623
Dave McCormick · Republican40.9%191,760
John C Thomas · Libertarian1.2%5,465
Leila L Hazou · Green0.9%4,409
Bernard Selker · Constitution0.3%1,196
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 76% non-Hispanic-white share, and a median household income of $110,538 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 6 and Congressional District 1.
Akashic
Political twins — districts
The congressional 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 →
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Pennsylvania 4th Congressional District. Akashic. https://akashic.app/cd/4204/. Accessed May 20, 2026. License: CC BY 4.0.
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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 468,159 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 6 presidential elections in Pennsylvania 4th Congressional District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
