Pennsylvania State Senate seat · lines in effect since 2022
Pennsylvania Senate District 40
A district of about 256,000 people, 27% of adults with a bachelor's degree. It votes R+4.9 relative to the nation for president.
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 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 | 2022 | 2024 | 2026 | |
|---|---|---|---|---|---|
| U.S. Senate | D+1.6 | D+8.0 | No race | R+4.4 | No race |
| Governor | No race | D+13.9 | No race | No race | No race |
| Pennsylvania State Senate | No race | No race | R+10.5 | No race | D+3.0 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 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 40.
Lower than 71% of seats.
Higher than 55% of seats.
Higher than 84% of seats.
Higher than 73% of seats.
Lower than 65% of seats.
Less dense than 69% 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 1330% college gradsR+13.3Not up in 2026District 31
31% college gradsR+14.3Not up in 2026District 22
29% college gradsD+5.6Held DDistrict 49
31% college gradsD+0.8Not up in 2026
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
Who has held it
These lines took effect in 2022.
- Rosemary Maula Brown (R)
2023– · Won 2022 by 10.5
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)