- Lead
- 25,172
- Total
- 33,021
- vs nation
- D+77.7
Pennsylvania 186th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 26,952
- Total
- 33,403
- vs nation
- D+76.2
- Lead
- 24,878
- Total
- 29,742
- vs nation
- D+81.6
- Lead
- 25,342
- Total
- 29,469
- vs nation
- D+82.1
- Lead
- 25,301
- Total
- 30,196
- vs nation
- D+76.5
- Lead
- 22,490
- Total
- 27,653
- vs nation
- D+83.8
- Lead
- 18,789
- Total
- 23,154
- vs nation
- D+80.6
- Lead
- 17,356
- Total
- 22,416
- vs nation
- D+69.0
Key facts
- 2024 presidential margin
- D+76.2MIT Election Lab
- Population
- 61,9952024 5-year
- Population density
- 18,786 / sq mi2024 5-year · TIGER/Line
- Land area
- 3.3 sq miTIGER/Line
- Median household income
- $73,5052024 5-year
- White (non-Hispanic)
- 31.0%2024 5-year
- Black
- 44.4%2024 5-year
- Hispanic / Latino
- 7.1%2024 5-year
- Peak Democratic margin
- D+86.0 in 2012MIT Election Lab
- Peak Republican margin
- R+37.4 in 1924MIT Election Lab
- Most similar
- State House District 195, PA · twin score 98.2
presidential history
Party record book
Pennsylvania 186th State House 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
92.2%
27,178 votes · D+86.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 91.1%
Republican
Theodore Roosevelt1904
62.1%
4,301 votes · R+30.9 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 60.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
30,929votes
86.7% of the vote · D+73.8 · modeled estimate
Runner-up · Joe Biden, 2020 · 30,076 votes
Republican
Thomas E. Dewey1948
8,092votes
27.8% of the vote · D+40.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 8,002 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
+83.8pts D vs U.S.
Place D+81.3 · U.S. R+2.5 · modeled estimate
Runner-up · Barack Obama, 2012 · +82.1 pts
Republican
Calvin Coolidge1924
+12.2pts R vs U.S.
Place R+37.4 · U.S. R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +11.2 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.
With a 2024 presidential margin of D+76, this Philadelphia-area district ranks among the most heavily Democratic in the state, reflecting the dense urban concentration that defines its electorate.
Across the recorded series it reached a Democratic high of 86.0 points in 2012 and a Republican high of 37.4 points in 1924. Between 2020 and 2024 the district moved 4.5 points toward the Republican candidate; the 2024 margin was 76.2 points.
A population of 61,995, a 31% non-Hispanic-white share, and a median household income of $73,505 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 195 and State House District 181.
The state-house 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 186th State House District. Akashic. https://akashic.app/sld-lower/42186/. Accessed May 20, 2026. License: CC BY 4.0.