- Lead
- 25,223
- Total
- 457,453
- vs nation
- D+7.0
Pennsylvania 17th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 26,570
- Total
- 455,650
- vs nation
- D+1.4
- Lead
- 4,212
- Total
- 403,112
- vs nation
- R+1.0
- Lead
- 6,505
- Total
- 383,581
- vs nation
- R+2.2
- Lead
- 12,593
- Total
- 402,128
- vs nation
- R+4.1
- Lead
- 15,766
- Total
- 396,294
- vs nation
- D+6.4
- Lead
- 23,217
- Total
- 355,982
- vs nation
- D+6.0
- Lead
- 27,253
- Total
- 336,909
- vs nation
- R+0.4
Key facts
- 2024 presidential margin
- D+5.5MIT Election Lab
- Population
- 764,9332024 5-year
- Population density
- 856 / sq mi2024 5-year · TIGER/Line
- Land area
- 893 sq miTIGER/Line
- Median household income
- $85,9332024 5-year
- White (non-Hispanic)
- 81.9%2024 5-year
- Black
- 7.8%2024 5-year
- Hispanic / Latino
- 2.4%2024 5-year
- Peak Democratic margin
- D+26.8 in 1964MIT Election Lab
- Peak Republican margin
- R+62.2 in 1904MIT Election Lab
- Most similar
- Congressional District 12, PA · twin score 85.0
presidential history
Party record book
Pennsylvania 17th Congressional 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
Lyndon B. Johnson1964
63.2%
269,566 votes · D+26.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 60.9%
Republican
Theodore Roosevelt1904
78.4%
56,810 votes · R+62.2 · modeled estimate
Runner-up · William McKinley, 1896 · 72.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
269,566votes
63.2% of the vote · D+26.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 239,038 votes
Republican
Dwight D. Eisenhower1956
248,537votes
58.5% of the vote · R+17.2 · modeled estimate
Runner-up · Richard Nixon, 1972 · 247,221 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
Walter Mondale1984
+25.7pts D vs U.S.
Place D+7.5 · U.S. R+18.2 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +22.1 pts
Republican
Theodore Roosevelt1904
+42.5pts R vs U.S.
Place R+62.2 · U.S. R+19.7 · modeled estimate
Runner-up · William McKinley, 1896 · +41.5 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Pennsylvania's 17th stretches from suburban Allegheny County into working-class communities along the Ohio border, producing competitive margins that have tracked closely with regional shifts in college-educated and blue-collar voter alignment.
Across the recorded series it reached a Democratic high of 26.8 points in 1964 and a Republican high of 62.2 points in 1904. The 2024 margin was 5.5 points.
A population of 764,933, a 82% non-Hispanic-white share, and a median household income of $85,933 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 12 and Congressional District 4.
The congressional 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 17th Congressional District. Akashic. https://akashic.app/cd/4217/. Accessed May 20, 2026. License: CC BY 4.0.