Pennsylvania State Senate seat · lines in effect since 2022
Pennsylvania Senate District 33
A district of about 263,000 people, 25% of adults with a bachelor's degree. It votes R+39.6 relative to the nation for president.
2024 election
Nov 5, 2024- Doug Mastriano (R) · won69.0%
- Cameron Schroy (D)31.0%
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. 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 | Doug Mastriano (R) | Cameron Schroy (D) | 38.0 |
| Lines first used in 2012 | |||
| 2020 | Doug Mastriano (R) | Richard L. Sterner (D) | 37.3 |
| 2016 | Richard Alloway II (R) | — | Unopposed |
| 2012 | Richard Alloway II (R) | Bruce Neylon (D) | 41.5 |
| Lines first used in 2002 | |||
| 2008 | Richard Alloway II (R) | Bruce Tushingham (D) | 37.1 |
| 2004 | Terry Punt (R) | Donald R. Richards (D) | 53.0 |
| Lines first used in 1992 | |||
| 2000 | Terry Punt (R) | — | Unopposed |
| 1996 | Terry Punt (R) | — | Unopposed |
| 1992 | Terry Punt (R) | — | Unopposed |
| Lines first used in 1982 | |||
| 1988 | Terry Punt (R) | Catherine W. Cowan (D) | 15.9 |
| 1984 | William J. Moore (R) | — | Unopposed |
| Lines first used in 1972 | |||
| 1980 | William J. Moore (R) | Robert C. Sullivan (D) | 36.2 |
| 1976 | William J. Moore (R) | Kenneth F. Lee (D) | 14.0 |
| 1972 | William J. Moore (R) | Robert F. Oravetz (D) | 17.8 |
| Lines first used in 1962 | |||
| 1968 | D. Elmer Hawbaker (R) | Bruce W. Hockersmith Jr. (D) | 33.6 |
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 33
The state's districts in other chambers that share residents with this one, and the share of District 33's area in each.
- U.S. House
- PA-13 100%
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+42.2 | No race | R+36.2 | R+37.2 |
| U.S. Senate | R+39.8 | R+26.4 | No race | R+34.8 |
| Governor | No race | R+21.9 | 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 33.
Lower than 82% of seats.
Higher than 82% of seats.
Higher than 61% of seats.
Lower than 82% of seats.
Lower than 84% of seats.
Less dense than 73% of 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 2725% college gradsR+36.7Not up in 2026District 48
25% college gradsR+34.2Held RDistrict 41
23% college gradsR+40.6Not 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