Dry counties are a foreign concept up here in CT, but dry towns are not. The town next to mine was "damp" until a couple of years ago (restaurants could get liquor licenses, but supermarkets could not sell alcohol, and no liquor stores were allowed) - then they went "wet" and a wine store immediately popped up.
I grew up in NY where supermarkets can sell beer only. I went to school in MA where alcohol is only sold in package stores. Then I moved to CT, where, again, supermarkets can sell beer only - only package stores can sell wine and hard liquor.
I was quite surprised when I went into a supermarket in VA and saw wine for sale, and I was again surprised when I went into a CVS in IL and saw a full selection of booze, including hard liquor.
BTW, CT was the last state in the US to legalize liquor sales on Sundays. Damn Puritans