electionsmcp › races › Pennsylvania State Senate District 43
Pennsylvania State Senate District 43
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Pennsylvania actually voted.
Model Pennsylvania State Senate District 43 →
Current officeholder
Jay Costa Democratic
2024 result
Democratic D+100.0
2024 votes cast
116,722
Office
State Senate
Precinct results — 2024 general
316 precincts reported in Pennsylvania State Senate District 43's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 42003-PITTSBURGH W 4 D 8W 4D 8 | Democratic | D+100.0 | 1,037 |
| 42003-PITTSBURGH W 14 D 7W 14D 7 | Democratic | D+100.0 | 976 |
| 42003-PITTSBURGH W 4 D 7W 4D 7 | Democratic | D+100.0 | 891 |
| 42003-PITTSBURGH W 14 D 31W 14D 31 | Democratic | D+100.0 | 836 |
| 42003-OAKMONT D 6D 6 | Democratic | D+100.0 | 813 |
| 42003-PITTSBURGH W 4 D 16W 4D 16 | Democratic | D+100.0 | 764 |
| 42003-PITTSBURGH W 14 D 2W 14D 2 | Democratic | D+100.0 | 757 |
| 42003-EDGEWOOD D 1D 1 | Democratic | D+100.0 | 753 |
| 42003-PITTSBURGH W 16 D 2W 16D 2 | Democratic | D+100.0 | 747 |
| 42003-PITTSBURGH W 4 D 14W 4D 14 | Democratic | D+100.0 | 741 |
| 42003-EDGEWOOD D 2D 2 | Democratic | D+100.0 | 680 |
| 42003-PITTSBURGH W 7 D 11W 7D 11 | Democratic | D+100.0 | 675 |
| 42003-OAKMONT D 2D 2 | Democratic | D+100.0 | 655 |
| 42003-PITTSBURGH W 14 D 25W 14D 25 | Democratic | D+100.0 | 652 |
| 42003-WILKINSBURG W 2 D 2W 2D 2 | Democratic | D+100.0 | 651 |
| 42003-PITTSBURGH W 7 D 2W 7D 2 | Democratic | D+100.0 | 649 |
| 42003-EDGEWOOD D 3D 3 | Democratic | D+100.0 | 648 |
| 42003-PITTSBURGH W 7 D 12W 7D 12 | Democratic | D+100.0 | 642 |
| 42003-PITTSBURGH W 16 D 3W 16D 3 | Democratic | D+100.0 | 625 |
| 42003-PITTSBURGH W 14 D 3W 14D 3 | Democratic | D+100.0 | 619 |
All 316 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Pennsylvania State Senate District 43 in five steps
- Set the candidates. Name the contenders for the Pennsylvania State Senate District 43 (or keep the generic Democrat / Republican defaults). The map starts from real 2024 results in every precinct.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Drill to precincts. Zoom from the state down to individual precincts and override any of them by hand.
- Roll up & share. Roll the result up to chamber control, then publish a shareable, frozen link to your scenario.
Open Pennsylvania State Senate District 43 in the simulator →
Frequently asked
Who represents Pennsylvania State Senate District 43?
Jay Costa (Democratic) currently holds this State Senate seat.
What was the 2024 result in Pennsylvania State Senate District 43?
D+100.0 — 116,722 Democratic, 0 Republican, of 116,722 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.