Pennsylvania 12th Congressional District (PA) — Elections 1876–2024

Pennsylvania 12th Congressional District, Pennsylvania: Democratic loyalist district. In 2024, voted D+15%. Republican peak: R+56 in 1904.

Key facts

2024 presidential margin: D+15MIT Election Lab
Political archetype: Democratic loyalistAkashic typology
Population: 517,0192024 5-year
Median household income: $78,0962024 5-year
White (non-Hispanic): 77.7%2024 5-year
Black: 11.5%2024 5-year
Hispanic / Latino: 2.9%2024 5-year
Peak Democratic margin: D+34 in 1936MIT Election Lab
Peak Republican margin: R+56 in 1904MIT Election Lab

LEE, SummerCongress 119 · Democratic

−1 liberal

+1 conservative

Predecessors: KELLER, Fred (2021–2023), MARINO, Thomas A. (2019–2021), KELLER, Fred (2019–2021), ROTHFUS, Keith (2017–2019)

Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).

2024 results by constituent county

2 counties · 1 D · 1 R

R+60

D+60

One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.

38 presidential elections

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year	Won	Margin	Democratic	Republican	Total
2024	D	+15.1%	172,433	126,516	303,134
2020	D	+15.4%	171,700	125,324	300,505
2016	D	+11.7%	146,792	114,713	273,881
2012	D	+10.8%	141,797	113,794	259,291
2008	D	+12.3%	150,816	117,416	270,736
2004	D	+12.3%	149,979	116,929	268,770
2000	D	+14.1%	134,477	100,345	241,862
1996	D	+13.6%	116,207	85,802	223,413
1992	D	+22.2%	131,947	75,714	253,419
1988	D	+19.3%	142,282	95,869	240,641
1984	D	+12.6%	151,671	117,434	272,463
1980	D	+4.1%	121,815	111,389	253,996
1976	D	+4.4%	134,231	122,528	263,316
1972	R	−13.2%	114,812	150,638	271,280
1968	D	+14.5%	149,082	107,109	289,952
1964	D	+33.3%	194,229	96,853	292,254
1960	D	+14.1%	173,487	130,661	304,689
1956	R	−8.8%	129,359	154,321	284,121
1952	D	+2.6%	151,084	143,533	295,781
1948	D	+12.7%	131,629	101,223	238,930
1944	D	+14.7%	140,650	104,426	246,079
1940	D	+16.7%	147,639	105,118	253,963
1936	D	+33.8%	148,483	71,483	227,574
1932	D	+11.1%	77,986	61,676	146,691
1928	R	−15.3%	64,853	88,602	154,717
1924	R	−49.3%	9,771	61,150	104,230
1920	R	−47.7%	17,024	56,143	82,053
1916	R	−16.5%	21,880	31,343	57,496
1912	O	+6.9%	13,166	9,577	51,781
1908	R	−30.0%	15,030	30,089	50,152
1904	R	−56.3%	9,274	36,553	48,485
1900	R	−40.8%	11,887	29,313	42,685
1896	R	−40.8%	12,827	30,993	44,536
1892	R	−17.1%	13,181	18,787	32,746
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Congressional elections · 17 Senate races

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year	Won	D %	R %	Total
2024	R	48.6%	48.8%	6,963,137
2022	D	51.2%	46.3%	5,368,021
2018	D	55.6%	42.7%	4,994,643
2016	R	47.3%	48.8%	6,051,856
2012	D	53.7%	44.6%	5,627,422
2010	R	49.0%	51.0%	3,977,661
2006	D	58.6%	41.3%	4,081,043
2004	R	42.0%	52.6%	5,559,105
2000	R	45.5%	52.4%	4,735,116
1998	R	34.8%	61.3%	2,957,499
1994	R	46.9%	49.4%	3,513,361
1992	R	46.3%	49.1%	4,802,410
1988	R	32.4%	66.5%	4,366,598
1986	R	42.9%	56.4%	3,378,226
1982	R	39.2%	59.3%	3,604,108
1980	R	48.0%	50.5%	4,418,042
1976	R	46.8%	52.4%	4,546,353

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

22.8%

Irish

16.8%

Italian

14.8%

English

8.6%

Polish

7.7%

American

2.8%

Scottish

1.8%

Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 41.3 in this county, 39.1 nationally

Male

Age

Female

0.9%

85+

1.7%

2.5%

75–84

3.5%

5.6%

65–74

6.4%

55–64

7.0%

5.7%

45–54

5.7%

6.7%

35–44

6.5%

7.2%

25–34

7.1%

4.2%

18–24

4.3%

7.0%

5–17

6.6%

2.6%

2.4%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$78,096

Congressional District 12 ranks near the middle of US counties.

Congressional District 12$78,096

Pennsylvania$77,971

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

11.4%

Child poverty is below the national average.

Children under 1814.8%

Working age (18–64)10.5%

Seniors (65+)11.5%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

92.1%

speak English only

Other Indo-European3.2%

Asian & Pacific Islander2.2%

Spanish1.8%

Other languages0.8%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

36.3%

Other Christian

6.6%

Mainline Protestant

5.2%

Non-Christian

4.1%

Methodist

3.6%

Baptist

2.2%

Pentecostal & Holiness

1.7%

Source · 2020 US Religion Census. Remaining 40.2% of residents not counted as adherents by any reporting body.

Anchored in rural south-central Pennsylvania, the district delivered a 37-point presidential margin in 2024, making it among the most lopsided congressional territories in the state and a reliable baseline for tracking GOP turnout patterns.

The Democratic margin in Pennsylvania 12th Congressional District reached its widest at thirty-four points in 1936. The margin in 2024 was fifteen points — still decisive.

Its loyalty is rooted in its place. Median household income of $78,096, a 78% non-Hispanic-white share, and a population of 517,019 together describe a district whose political habits are deeply settled.

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Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

Congressional District 12, Pennsylvania. Akashic. https://akashic.app/cd/4212/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did Congressional District 12, Pennsylvania vote in 2024?

In 2024, Congressional District 12, Pennsylvania voted Democratic by 15.1 points (D+15), carried by the Democratic candidate. Out of 303,134 votes cast, 172,433 went Democratic and 126,516 went Republican.

What is Congressional District 12, Pennsylvania's political archetype?

Akashic classifies Congressional District 12, Pennsylvania as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 22 times, Republican 11 times, and other 1 times.

When did Congressional District 12, Pennsylvania last vote Republican?

The most recent presidential election in which Congressional District 12, Pennsylvania voted Republican was 1972.

How many people live in Congressional District 12, Pennsylvania?

Congressional District 12, Pennsylvania has a population of 517,019 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Congressional District 12, Pennsylvania?

Median household income in Congressional District 12, Pennsylvania is $78,096 — below the national median of $80,734. The Pennsylvania state median is $77,971.

What is the political history of Congressional District 12, Pennsylvania?

Akashic tracks 38 presidential elections in Congressional District 12, Pennsylvania from 1876 to 2024. Of those, 22 went Democratic and 11 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.

Pennsylvania 12th Congressional District has voted Democratic in thirteen straight presidential cycles.

Key facts

U.S. Senate

Demographics

Compare two places, side by side

Frequently asked questions