The Mets, A's, and Bluejays have no counties. Which kind of makes sense with the Giants owning Bay Area fans, the Yankees owning New York, and the Bluejays being in Canada.
So many of their games are nationally televised that it makes a good deal of sense.
I'm really surprised the Yankees won every county in New York. I would have thought you would see some Toronto, Cleveland, Pittsburgh, or Boston areas seeing how far away much of New York State is from the Bronx and Queens.