Pennsylvania State Senate seat · lines in effect since 2022
Pennsylvania Senate District 25
A district of about 265,000 people, 28% of adults with a bachelor's degree. It votes R+30.0 relative to the nation for president.
2024 election
Nov 5, 2024- Cris Dush (R) · won66.4%
- William L. McGill (D)33.6%
Source: Pennsylvania Department of StateUpdated Oct 1, 2026, 6:19 AM ET
Where it sits among all 50 seats
Every Pennsylvania State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1968; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2024 | Cris Dush (R) | William L. McGill (D) | 32.9 |
| Lines first used in 2012 | |||
| 2020 | Cris Dush (R) | Margaret Satterwhite Brown (D) | 48.8 |
| 2016 | Joseph B. Scarnati III (R) | Jerri Buchanan (D) | 49.7 |
| 2012 | Joseph B. Scarnati III (R) | — | Unopposed |
| Lines first used in 2002 | |||
| 2008 | Joseph B. Scarnati III (R) | Donald L. Hilliard (D) | 33.4 |
| 2004 | Joseph B. Scarnati III (R) | Alan R. Kiser (I) | 79.1 |
| Lines first used in 1992 | |||
| 2000 | Joseph B. Scarnati III (IND)Flip | Joseph J. Calla Jr. (D) | 0.2 |
| 1996 | Bill Slocum (R) | Curt Bowley (D) | 14.2 |
| 1992 | John Peterson (R) | Howard Shakespeare (D) | 17.9 |
| Lines first used in 1982 | |||
| 1988 | John Peterson (R) | — | Unopposed |
| 1984 | John Peterson (R) | Jack W. Graham (D) | 15.1 |
| Lines first used in 1972 | |||
| 1980 | Robert J. Kusse (R) | David Frey (D) | 41.6 |
| 1976 | Richard C. Frame (R) | Francis L. Kuntz (D) | 5.8 |
| 1972 | Richard C. Frame (R) | George Scanlon (D) | 20.7 |
| Lines first used in 1962 | |||
| 1968 | Richard C. Frame (R) | Robert N. Kunselman (D) | 25.4 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 25
The state's districts in other chambers that share residents with this one, and the share of District 25's area in each.
- U.S. House
- PA-15 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2016 | 2018 | 2020 | 2024 | |
|---|---|---|---|---|
| President | R+26.3 | No race | R+26.2 | R+31.4 |
| U.S. Senate | R+22.8 | R+5.9 | No race | R+28.7 |
| Governor | No race | R+6.9 | No race | No race |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 50 seats. Small marks are other seats in Pennsylvania. The black marker is District 25.
Lower than 67% of seats.
Higher than 84% of seats.
Lower than 73% of seats.
Lower than 92% of seats.
Lower than 59% of seats.
Least dense of 50 seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 3529% college gradsR+33.5Not up in 2026District 20
26% college gradsR+26.1Held RDistrict 23
24% college gradsR+42.2Not up in 2026District 50
24% college gradsR+32.8Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET