1970Flipped from DemocraticFinal resultsIncumbent defeated
1970 election for Pennsylvania House District 183
Pennsylvania House of Representatives · Pennsylvania
Adriano Mastrangelo (R) won with 51.8% of the vote, defeating James J. Tayoun (D) by 3.6 points, flipping a seat Democrats held.
Adriano MastrangeloRepublican · winner
51.8%10,843
James J. TayounDemocrat · incumbent
48.2%10,081
20,924 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1970
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)