I love this sort of thing and have to share:
Found these really fascinating dialect maps for the continental US
They've got 122 entries with a variety of words and phrases, from "how do you pronounce 'coupon'" to "what do you call a carbonated soft drink" to "what city is 'the City'"?
http://spark-1590165977.us-west-2.elb.amazonaws.com/jkatz/SurveyMaps/