Was looking at lake erie / erie camping destinations last year for a trip in August. Ended up staying at the Lampe Marina Campground
run by the port authority. PROS: It is only a couple years old, facilities were clean and new. Everything paved. Liked the location, right at the port inlet. Bike trail from the campground to the erie waterfront. CONS: No Shade. If the winds aren't blowing off the water, could be very buggy. Wife is a light sleeper and didnt care for the all night noise from local industrial sites.
This past summer, in early June, we checked out Geneva State Park in OH for Lake Erie camping and liked it alot. Great bike trails, nice facilities, public beach, nice marina, paved everything. CONS: was right after the heavy spring rains, between all the campground loops were flooded/swamp, tons of mosquitoes.
Despite the skeeters, Geneva SP will be our Lake Erie shore camping destination of choice going forward.
Pretty reasonable to get there from the Western PA / Pittsburgh area. Make sure you have a full tank of gas before you get on OH 11 North, it is a desolate stretch of road devoid of gas stations (and everything else.)