We just left Westport yesterday after camping at Horseneck State Reservation. Not much there but it is a beautiful area. Check out Westport Point if you like old houses (1720's and up). We did not see or stay in Wesport Camping Grounds. Sorry!
When visiting Newport (which we loved) we stayed at Fishermens Memorial State Park in Narragansett, RI. The park has full hook up sites, large spaces, and a great location. We would highly recommend it.
2015 Jeep Willys Wrangler
2014 Fleetwood Bounder 33C
States camped: all but Hawaii
more than 1700 days on the road