State Senate District 20 State Senate District (PA) — Elections 1876–2024

Pennsylvania 20th State Senate District, Pennsylvania: Republican loyalist district. In 2024, voted R+28%. Republican peak: R+37 in 1920.

Key facts

2024 presidential margin: R+28MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 286,2712024 5-year
Median household income: $68,6882024 5-year
White (non-Hispanic): 82.4%2024 5-year
Black: 4.0%2024 5-year
Hispanic / Latino: 11.4%2024 5-year
Peak Democratic margin: D+26 in 1964MIT Election Lab
Peak Republican margin: R+37 in 1920MIT Election Lab

2024 results by constituent county

5 counties · 0 D · 5 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	R	−28.2%	54,250	97,468	153,314
2020	R	−24.1%	55,234	90,822	147,671
2016	R	−28.4%	43,184	79,400	127,562
2012	R	−7.7%	52,694	61,632	116,379
2008	R	−1.6%	60,536	62,518	124,534
2004	R	−10.9%	53,237	66,366	120,697
2000	R	−7.3%	46,786	54,446	105,423
1996	D	+1.3%	42,610	41,321	96,454
1992	R	−5.2%	37,898	43,212	101,605
1988	R	−18.4%	35,737	51,942	88,290
1984	R	−25.6%	33,990	57,677	92,504
1980	R	−18.7%	34,783	52,040	92,208
1976	R	−3.1%	43,908	46,732	91,843
1972	R	−32.7%	29,051	57,836	88,149
1968	R	−4.7%	40,674	44,952	90,934
1964	D	+26.4%	59,460	34,459	94,666
1960	R	−1.4%	52,494	54,009	106,759
1956	R	−28.9%	34,622	62,918	98,028
1952	R	−25.2%	36,257	60,859	97,511
1948	R	−20.2%	31,661	47,966	80,684
1944	R	−11.9%	37,613	47,853	85,787
1940	R	−3.3%	50,845	54,308	105,505
1936	D	+0.4%	55,597	55,110	111,995
1932	R	−1.9%	35,558	36,999	74,040
1928	R	−14.8%	36,416	49,097	85,753
1924	R	−35.9%	13,239	33,744	57,154
1920	R	−36.5%	15,098	33,603	50,667
1916	R	−9.7%	14,620	17,889	33,830
1912	O	+20.4%	11,590	5,023	32,168
1908	R	−15.7%	14,290	19,926	35,815
1904	R	−26.6%	11,739	20,898	34,377
1900	R	−10.8%	14,805	18,570	34,988
1896	R	−13.0%	15,051	19,768	36,156
1892	D	+0.6%	14,519	14,342	30,487
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

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

Irish

17.5%

German

17.1%

Italian

13.5%

Polish

10.6%

English

8.9%

American

3.9%

French

1.2%

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: 45.7 in this county, 39.1 nationally

Male

Age

Female

0.9%

85+

1.6%

3.2%

75–84

3.6%

6.5%

65–74

6.7%

7.9%

55–64

7.6%

6.3%

45–54

6.0%

6.1%

35–44

5.6%

6.1%

25–34

5.3%

4.0%

18–24

3.6%

7.2%

5–17

6.9%

2.4%

2.2%

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

Median household income

2024 inflation-adjusted dollars

$68,688

State Senate District 20 ranks near the middle of US counties.

State Senate District 20$68,688

Pennsylvania$77,971

United States$80,734

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

Poverty rate

All persons below federal poverty line

12.9%

Children face moderate poverty.

Children under 1819.1%

Working age (18–64)11.3%

Seniors (65+)11.8%

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

Language at home

Population aged 5 and older

88.9%

speak English only

Spanish7.6%

Other Indo-European2.6%

Asian & Pacific Islander0.6%

Other languages0.2%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

24.8%

Other Christian

4.8%

Methodist

4.7%

Mainline Protestant

3.0%

Non-Christian

1.0%

Baptist

0.6%

Pentecostal & Holiness

0.5%

Source · 2020 US Religion Census. Remaining 60.7% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of D+17.6, this southeastern Pennsylvania district ranks among the state's most reliably Democratic constituencies, anchored by dense suburban and urban precincts where turnout patterns tend to amplify that advantage.

The Republican margin in Pennsylvania 20th State Senate District reached its widest at thirty-seven points in 1920. The margin in 2024 was twenty-eight points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $68,688, a 82% non-Hispanic-white share, and a population of 286,271 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.

State Senate District 20, Pennsylvania. Akashic. https://akashic.app/sld-upper/42020/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 20, Pennsylvania vote in 2024?

In 2024, State Senate District 20, Pennsylvania voted Republican by 28.2 points (R+28), carried by the Republican candidate. Out of 153,314 votes cast, 54,250 went Democratic and 97,468 went Republican.

What is State Senate District 20, Pennsylvania's political archetype?

Akashic classifies State Senate District 20, Pennsylvania as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 4 times, Republican 29 times, and other 1 times.

When did State Senate District 20, Pennsylvania last vote Democratic?

The most recent presidential election in which State Senate District 20, Pennsylvania voted Democratic was 1996.

How many people live in State Senate District 20, Pennsylvania?

State Senate District 20, Pennsylvania has a population of 286,271 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in State Senate District 20, Pennsylvania?

Median household income in State Senate District 20, Pennsylvania is $68,688 — below the national median of $80,734. The Pennsylvania state median is $77,971.

What is the political history of State Senate District 20, Pennsylvania?

Akashic tracks 38 presidential elections in State Senate District 20, Pennsylvania from 1876 to 2024. Of those, 4 went Democratic and 29 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Pennsylvania 20th State Senate District has voted Republican in seven straight presidential cycles.

Key facts

Demographics

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Frequently asked questions