- Lead
- 81,869
- Total
- 122,883
- vs nation
- D+68.1
Pennsylvania 8th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 88,432
- Total
- 124,618
- vs nation
- D+66.5
- Lead
- 86,952
- Total
- 118,823
- vs nation
- D+71.1
- Lead
- 87,730
- Total
- 116,682
- vs nation
- D+71.3
- Lead
- 88,051
- Total
- 120,226
- vs nation
- D+66.0
- Lead
- 77,248
- Total
- 111,198
- vs nation
- D+71.9
- Lead
- 64,035
- Total
- 93,527
- vs nation
- D+67.9
- Lead
- 58,635
- Total
- 88,744
- vs nation
- D+57.6
Key facts
- 2024 presidential margin
- D+66.6MIT Election Lab
- Population
- 255,2862024 5-year
- Population density
- 10,506 / sq mi2024 5-year · TIGER/Line
- Land area
- 24.3 sq miTIGER/Line
- Median household income
- $52,8132024 5-year
- White (non-Hispanic)
- 25.6%2024 5-year
- Black
- 56.9%2024 5-year
- Hispanic / Latino
- 5.1%2024 5-year
- Peak Democratic margin
- D+75.2 in 2012MIT Election Lab
- Peak Republican margin
- R+45.3 in 1924MIT Election Lab
- Most similar
- State Senate District 7, PA · twin score 99.1
presidential history
Party record book
Pennsylvania 8th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Barack Obama2012
87.1%
101,596 votes · D+75.2 · modeled estimate
Runner-up · Barack Obama, 2008 · 86.0%
Republican
Theodore Roosevelt1904
66.5%
15,902 votes · R+37.9 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 66.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
109,579votes
82.3% of the vote · D+64.8 · modeled estimate
Runner-up · Joe Biden, 2020 · 106,048 votes
Republican
Dwight D. Eisenhower1956
35,266votes
30.7% of the vote · D+38.3 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 35,000 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
John Kerry2004
+71.9pts D vs U.S.
Place D+69.5 · U.S. R+2.5 · modeled estimate
Runner-up · Barack Obama, 2012 · +71.3 pts
Republican
Calvin Coolidge1924
+20.1pts R vs U.S.
Place R+45.3 · U.S. R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +18.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Pennsylvania 8th State Senate District sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 75.2 points in 2012 and a Republican high of 45.3 points in 1924. Between 2020 and 2024 the district moved 4.3 points toward the Republican candidate; the 2024 margin was 66.6 points.
A population of 255,286, a 26% non-Hispanic-white share, and a median household income of $52,813 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 7 and State Senate District 28.
The state-senate 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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Pennsylvania 8th State Senate District. Akashic. https://akashic.app/sld-upper/42008/. Accessed May 20, 2026. License: CC BY 4.0.