To send "City, State, Zip" (excluding the opening and closing double-quotes)
'City,State,Zip'
To send "'City','State','Zip'" (excluding the opening and closing double-quotes)
'''City'',''State'',''Zip'''
To embed a single quote in a string, you have to escape it with another single quote.
Reading through your question one more time, what you want is the second one above