Not true for the Lehigh Valley area just based on lawn signs in the area and bumper stickers.
All I’ve seen are Trump and Bernie. And Trump outnumbers Bernie by 5 to 1 in my estimation. I have not seen one Hillary sign or bumper sticker at all.
I don’t know if Philly and Pittsburgh alone can push her over the edge though.
Philly “might” go for Hillary, but I doubt that she can count on the blacks there, because most blacks everywhere hate her.
I also live in the Lehigh Valley. Plenty of Trump supporters here although I know Hillary supporters too who seem to only like her because she’s a woman.