Pennsylvania 10th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | −2.3% |
| 2012 | −7.3% |
| 2016 | −9.9% |
| 2020 | −4.1% |
| 2024 | −5.2% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
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.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 10 | R | 49.4%200,434 | 50.6%205,567 | 406,001 |
| 2022 | 10 | R | 46.2%145,215 | 53.8%169,331 | 314,546 |
| 2020 | 10 | R | 46.7%182,938 | 53.3%208,896 | 391,834 |
| 2018 | 10 | R | 48.7%141,668 | 51.3%149,365 | 291,033 |
| 2016 | 10 | R | 29.8%89,823 | 70.2%211,282 | 301,105 |
| 2014 | 10 | R | 24.8%44,737 | 62.6%112,851 | 180,322 |
| 2012 | 10 | R | 34.4%94,227 | 65.6%179,563 | 273,790 |
| 2010 | 10 | R | 44.8%89,846 | 55.2%110,599 | 200,445 |
| 2008 | 10 | D | 56.3%160,837 | 43.7%124,681 | 285,518 |
| 2006 | 10 | D | 52.9%110,115 | 47.0%97,862 | 208,173 |
| 2004 | 10 | R | 0.0%0 | 92.8%191,967 | 206,772 |
| 2002 | 10 | R | 0.0%0 | 92.6%152,017 | 164,159 |
| 2000 | 10 | R | 47.4%112,580 | 52.6%124,830 | 237,410 |
| 1998 | 10 | R | 48.4%83,760 | 48.7%84,275 | 173,056 |
| 1996 | 10 | R | 36.2%75,536 | 59.8%124,670 | 208,540 |
| 1994 | 10 | R | 31.1%50,635 | 65.7%106,992 | 162,890 |
| 1992 | 10 | R | 0.0%0 | 90.4%189,414 | 209,548 |
| 1990 | 10 | R | 0.0%0 | 100.0%113,490 | 113,490 |
| 1988 | 10 | R | 26.8%51,179 | 73.2%140,096 | 191,275 |
| 1986 | 10 | R | 25.3%40,248 | 74.7%118,603 | 158,851 |
| 1984 | 10 | R | 22.9%44,571 | 77.1%150,166 | 194,737 |
| 1982 | 10 | R | 32.5%49,868 | 67.5%103,617 | 153,485 |
| 1980 | 10 | R | 22.7%43,152 | 76.6%145,703 | 190,319 |
| 1978 | 10 | R | 23.5%35,721 | 76.5%116,003 | 151,724 |
| 1976 | 10 | R | 37.4%74,925 | 62.6%125,218 | 200,143 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 48.6%3,384,180 | 48.8%3,399,295 | 6,963,137 |
| 2022 | D | 51.2%2,751,012 | 46.3%2,487,260 | 5,368,021 |
| 2018 | D | 55.6%2,777,680 | 42.7%2,134,848 | 4,994,643 |
| 2016 | R | 47.3%2,865,012 | 48.8%2,951,702 | 6,051,856 |
| 2012 | D | 53.7%3,021,364 | 44.6%2,509,132 | 5,627,422 |
| 2010 | R | 49.0%1,948,716 | 51.0%2,028,945 | 3,977,661 |
| 2006 | D | 58.7%2,392,984 | 41.3%1,684,778 | 4,077,762 |
| 2004 | R | 42.0%2,334,126 | 52.6%2,925,080 | 5,558,525 |
| 2000 | R | 45.5%2,154,908 | 52.4%2,481,962 | 4,735,116 |
| 1998 | R | 34.8%1,028,839 | 61.3%1,814,180 | 2,957,499 |
| 1994 | R | 46.9%1,648,481 | 49.4%1,735,691 | 3,513,112 |
| 1992 | R | 46.3%2,224,966 | 49.1%2,358,125 | 4,802,410 |
| 1988 | R | 32.4%1,416,764 | 66.5%2,901,715 | 4,366,598 |
| 1986 | R | 42.9%1,448,219 | 56.4%1,906,537 | 3,378,226 |
| 1982 | R | 39.2%1,412,965 | 59.3%2,136,418 | 3,604,108 |
| 1980 | R | 48.0%2,122,391 | 50.5%2,230,404 | 4,418,042 |
| 1976 | R | 46.8%2,126,977 | 52.4%2,381,891 | 4,546,353 |
Pennsylvania's 10th stretches across the Cumberland Valley and Harrisburg suburbs, where a growing professional class has gradually compressed what were once comfortable Republican margins into single-digit contests.
Across the recorded series it reached a Republican high of 9.9 points in 2016. Between 2020 and 2024 the district moved 1.1 points toward the Republican candidate; the 2024 margin was 5.2 points.
A population of 764,867, a 73% non-Hispanic-white share, and a median household income of $81,964 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 11 and Congressional District 1.
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Pennsylvania 10th Congressional District. Akashic. https://akashic.app/cd/4210/. Accessed May 20, 2026. License: CC BY 4.0.