We've never had a bit of trouble. We've never felt unsafe.
With your motorhome, the most trouble you could have in WI are low hanging branches removing your AC. They tend not to trim them in the rustic areas or even the non-rustic come to think of it.The biggest things to worry us are bears and wolves which we never seen in a CG.
Just to be safe, we do lock everything to keep the wannabe thieves out.
There are gorgeous rustic parks in WI that are seldom full or even known. I think the locals like to keep them a secret because they are such gems.
Have fun! Don't worry but be watchful just like at home.
2011 Adventurer 910FBS truck camper,Torklift tie downs,Fastguns & Wobbl-stopprs
2012 Dodge 3500 DRW 6.7L CTD,4x4,LB,CC,auto,3.73 axle,General 17" on/off rd
2008 Lund 1825 Explorer Sport,115 Merc,9.9 kicker,Torklift Super Hitch,42" Supertruss
USAF ret E-9&E-7