Are there any that can't be explained by:
Very socially liberal areas who saw Carter as not liberal enough and not much difference ideologically than Ford.
McGovern's home state of SD and Ford's home state of MI.
Alaska - though there is really no way to find specific areas.
Yes. "Southie" (South Boston) is in a class by itself. Boston's Ward 6 went from 61/39 McGovern to 55/42 Ford; Ward 7 went from 66/34 McGovern to 50/47 Ford.
The reason, of course, is intense and sometimes violent opposition to busing.