All except '68 and '84. While Mondale was certainly seen as "out of touch" and Reagan made populist appeals against big government, the few regions he did well with indicate the working-class nature of the Democratic campaign.
Seems like Reagan did really good with WWC outside Appalachia
He did really good
period, however the few places Mondale did well (Appalachia, the Iron Range in north Minnesota, limited parts of the Midwest due to the farm crisis) were all places with a strong tradition of labor. The truly historic margins came in the suburbs.