- Lead
- 12,892
- Total
- 23,543
- vs nation
- D+56.2
Pennsylvania 203rd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 16,683
- Total
- 25,816
- vs nation
- D+60.2
- Lead
- 17,113
- Total
- 24,296
- vs nation
- D+68.3
- Lead
- 17,722
- Total
- 23,670
- vs nation
- D+71.0
- Lead
- 17,274
- Total
- 24,608
- vs nation
- D+62.9
- Lead
- 14,957
- Total
- 23,038
- vs nation
- D+67.4
- Lead
- 12,649
- Total
- 19,192
- vs nation
- D+65.4
- Lead
- 11,893
- Total
- 18,035
- vs nation
- D+57.4
Key facts
- 2024 presidential margin
- D+54.8MIT Election Lab
- Population
- 65,3172024 5-year
- Population density
- 18,662 / sq mi2024 5-year · TIGER/Line
- Land area
- 3.5 sq miTIGER/Line
- Median household income
- $59,7052024 5-year
- White (non-Hispanic)
- 16.1%2024 5-year
- Black
- 43.9%2024 5-year
- Hispanic / Latino
- 23.4%2024 5-year
- Peak Democratic margin
- D+74.9 in 2012MIT Election Lab
- Peak Republican margin
- R+63.2 in 1924MIT Election Lab
- Most similar
- State House District 179, PA · twin score 98.7
presidential history
Party record book
Pennsylvania 203rd 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
87.3%
20,655 votes · D+74.9 · modeled estimate
Runner-up · Barack Obama, 2008 · 84.9%
Republican
Theodore Roosevelt1904
80.3%
7,063 votes · R+61.5 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 76.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
23,503votes
75.8% of the vote · D+51.8 · modeled estimate
Runner-up · John F. Kennedy, 1960 · 21,820 votes
Republican
Thomas E. Dewey1948
13,108votes
45.0% of the vote · D+7.1 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 12,921 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
Barack Obama2012
+71.0pts D vs U.S.
Place D+74.9 · U.S. D+3.9 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +68.3 pts
Republican
Theodore Roosevelt1904
+41.8pts R vs U.S.
Place R+61.5 · U.S. R+19.7 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +38.0 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+54.8, this Philadelphia-area district ranks among the most one-sided in the commonwealth, reflecting a densely urban electorate where statewide and local races rarely produce competitive outcomes.
Across the recorded series it reached a Democratic high of 74.9 points in 2012 and a Republican high of 63.2 points in 1924. Between 2020 and 2024 the district moved 9.9 points toward the Republican candidate; the 2024 margin was 54.8 points.
A population of 65,317, a 16% non-Hispanic-white share, and a median household income of $59,705 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 179 and State House District 104.
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 203rd State House District. Akashic. https://akashic.app/sld-lower/42203/. Accessed May 20, 2026. License: CC BY 4.0.