I’ve seen similar maps of some other states, such as New York and Illinois, which show huge areas of those liberal states being populated by conservatives.
Take away New York City, and the rest of New York is quite conservative.
Ditto Chicago vs. downstate Illinois.
Even liberal California, when you take away LA and the Bay Area, becomes a much more conservative state.
Another example is Seattle/Bellevue in the Puget Sound Area of WA State. The Eastern side of the State is more conservative. Although, I must add, that several years ago, I read that the homosexual lobby in the State decided that Spokane had to be turned into a homosexual mecca. And, they are working hard to do that.