Here's a map of the winner by town. The data is an hour or so old (before New Haven and Hartford became final), but seems to have held up regardless - and there are very few R voters in those two cities, anyway.
Labeled towns had more than 2,000 Republican primary voters.
An interactive version map of the map, with an option to color in how each candidate performed, is available
here.
Eventually, I might try to map what place each candidate came in in each town. Boughton generally did worse as you move east from Danbury - ending up in 5th place in some towns on the RI border. That's why he didn't win, despite putting up good numbers in the towns near Danbury (he won Danbury proper by about 2,000 votes).