Fun With Maps: PA Voter Registration by County (April 2025)
Democrats have shed 4.25% of its voters since our last map in October, while Republicans have seen nearly 1.3% leave the fold.
What should also be troubling to the ActBlue crowd is that its traditional urban strongholds are seeing big changes. Philadelphia Democrats saw a 3.8% drop, while Allegheny County, the home of Pittsburgh, drained 4.5% of the Dem totals. And Berks County, a mainstay in Pennsylvania’s Latino Belt, shed 4.7 percent of registered Democrats.
To be fair, Republicans have not added to their totals. Rather, the Grand Old Party has shed fewer voters than its main rival.
The top two counties for registered Republicans in the state – Allegheny and Montgomery – saw 2.4 and 1.6 percent drops, while York, Delaware and Chester counties also saw 2% dips. Bellwether counties such as Lancaster (-0.8%) nearly held steady, while “purple” Bucks County saw a change of just 0.7 percent.
While one might expect independent ranks to have swelled with reduced numbers in the major parties, those registered with “no affiliation” also saw a slight drop of 0.7 percent.
https://www.politicspa.com/fun-with-maps-pa-voter-registration-by-county-april-2025/141176/