Craig, I have lived in Rochester for about 16 years now, but am probably not the best person to paint an accurate picture of the local RV population. I'm very new to this myself, and have not become involved locally. I know that the local EAA Chapter (EAA100), which is based out of the Dodge Center airport, has a few RV builders, but I have not become involved there. If you get on their website, I'm sure you could touch base with some of them. As others have mentioned here, the Twin Cities RV club is an outstanding group. I recently joined myself and look forward to learning from them. Sorry I can't give you more info. Other than Dodge Center, the Rochester airport has hangers, but I can't begin to tell you what the availability and cost is. At Dodge Center, hangers are privately owned. There are no air parks in this general vicinity, but I know of one a few miles south of Minneapolis. If you have other questions about Rochester, I'd be glad to help.