Even when you look at the election maps of New York and Massachusetts, the counties outside the NYC and Boston area go Republican.
But Massachusetts counties outside of Boston routinely go Republican? I'd sure like to see some evidence of that, unfortunately none exists in the past several decades with the minor exceptions of Scott Brown's fluke win and the occasional vote for a leftist Governor like Bill Weld or some guy named Mitt.
Western Mass. with all its little pinko college towns is as much a hotbed of radical leftist nutjobs as Cambridge or Chelsea or anywhere else near Boston.