State Senate District 31 State Senate District (PA) — Elections 1876–2024

Pennsylvania 31st State Senate District, Pennsylvania: Republican loyalist district. In 2024, voted R+24%. Republican peak: R+60 in 1928.

Key facts

2024 presidential margin: R+24MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 170,4622024 5-year
Median household income: $85,0552024 5-year
White (non-Hispanic): 81.3%2024 5-year
Black: 6.1%2024 5-year
Hispanic / Latino: 9.2%2024 5-year
Peak Democratic margin: D+32 in 1912MIT Election Lab
Peak Republican margin: R+60 in 1928MIT Election Lab

2024 results by constituent county

2 counties · 0 D · 2 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	−23.8%	34,549	56,521	92,327
2020	R	−23.4%	33,048	53,609	87,994
2016	R	−27.9%	25,629	47,036	76,759
2012	R	−20.9%	27,056	41,675	70,022
2008	R	−13.6%	30,519	40,257	71,553
2004	R	−28.2%	23,511	42,154	66,129
2000	R	−24.9%	19,183	32,491	53,373
1996	R	−12.8%	18,263	24,336	47,444
1992	R	−11.3%	16,975	22,605	49,797
1988	R	−31.2%	14,028	26,949	41,349
1984	R	−38.2%	12,394	27,937	40,648
1980	R	−27.6%	12,324	22,807	37,961
1976	R	−16.6%	15,151	21,332	37,144
1972	R	−39.5%	10,059	23,703	34,548
1968	R	−20.7%	12,065	19,173	34,347
1964	D	+25.3%	21,246	12,625	34,020
1960	R	−19.2%	14,059	20,766	34,967
1956	R	−12.7%	13,792	17,823	31,673
1952	R	−7.9%	14,002	16,410	30,536
1948	R	−0.3%	11,845	11,922	24,745
1944	D	+6.2%	13,533	11,950	25,596
1940	D	+12.5%	14,175	11,011	25,245
1936	D	+20.4%	16,229	10,655	27,390
1932	D	+6.1%	10,530	9,276	20,720
1928	R	−59.9%	4,059	16,465	20,710
1924	R	−17.8%	5,669	8,315	14,863
1920	R	−15.3%	5,199	7,162	12,868
1916	D	+13.0%	5,844	4,422	10,976
1912	D	+31.6%	5,319	1,908	10,807
1908	D	+1.3%	5,404	5,261	11,027
1904	R	−7.1%	4,651	5,385	10,321
1900	D	+4.8%	4,920	4,455	9,588
1896	D	+2.3%	4,680	4,464	9,419
1892	D	+16.4%	4,614	3,294	8,068
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.

German

31.3%

Irish

12.1%

English

9.9%

Italian

6.2%

American

6.1%

Polish

2.8%

Scottish

1.6%

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: 41.0 in this county, 39.1 nationally

Male

Age

Female

0.9%

85+

1.4%

2.4%

75–84

3.1%

5.3%

65–74

5.8%

6.8%

55–64

6.9%

6.3%

45–54

6.3%

6.4%

35–44

6.3%

25–34

6.1%

4.2%

18–24

3.9%

8.4%

5–17

7.9%

2.8%

2.6%

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

Median household income

2024 inflation-adjusted dollars

$85,055

State Senate District 31 ranks near the middle of US counties.

State Senate District 31$85,055

Pennsylvania$77,971

United States$80,734

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

Poverty rate

All persons below federal poverty line

8.3%

Child poverty is below the national average.

Children under 1810.6%

Working age (18–64)7.5%

Seniors (65+)9.2%

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

Language at home

Population aged 5 and older

91.5%

speak English only

Spanish5.2%

Other Indo-European1.9%

Asian & Pacific Islander0.9%

Other languages0.5%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Other Christian

9.3%

Catholic & Orthodox

8.6%

Mainline Protestant

8.5%

Methodist

4.9%

Pentecostal & Holiness

1.7%

Non-Christian

0.9%

Baptist

0.8%

Source · 2020 US Religion Census. Remaining 65.3% of residents not counted as adherents by any reporting body.

With a 53-point Republican presidential margin in 2024, this district ranks among the most heavily one-sided state senate seats in Pennsylvania, reflecting the rural and small-town demographics that define its electorate.

The Republican margin in Pennsylvania 31st State Senate District reached its widest at sixty points in 1928. The margin in 2024 was twenty-four points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $85,055, a 81% non-Hispanic-white share, and a population of 170,462 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 31, Pennsylvania. Akashic. https://akashic.app/sld-upper/42031/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 31, Pennsylvania vote in 2024?

In 2024, State Senate District 31, Pennsylvania voted Republican by 23.8 points (R+24), carried by the Republican candidate. Out of 92,327 votes cast, 34,549 went Democratic and 56,521 went Republican.

What is State Senate District 31, Pennsylvania's political archetype?

Akashic classifies State Senate District 31, 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 11 times, Republican 23 times, and other 0 times.

When did State Senate District 31, Pennsylvania last vote Democratic?

The most recent presidential election in which State Senate District 31, Pennsylvania voted Democratic was 1964.

How many people live in State Senate District 31, Pennsylvania?

State Senate District 31, Pennsylvania has a population of 170,462 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 31, Pennsylvania?

Median household income in State Senate District 31, Pennsylvania is $85,055 — above the national median of $80,734. The Pennsylvania state median is $77,971.

What is the political history of State Senate District 31, Pennsylvania?

Akashic tracks 38 presidential elections in State Senate District 31, Pennsylvania from 1876 to 2024. Of those, 11 went Democratic and 23 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Pennsylvania 31st State Senate District has voted Republican in fifteen straight presidential cycles.

Key facts

Demographics

Compare two places, side by side

Frequently asked questions