No doubt pockets exist all over the country, but they are overwhelmingly outnumbered by major metro areas. Upstate NY has many white areas, but is dominated politically by NYC and Buffalo. Many of those white rural areas are de-populating as well; in northwest NJ (very white/conservative) Hispanics are a rapidly-growing population.
PA is a prime example. Though PA is largely rural and Conservative it is ruled by corrupt Filthadelphia which is a prime destination for immigrants, illegals and "refugees".
soetoro only won 8 counties out of 60 some but they were the right ones.
That and the government unions.