The only swim area's you can't fish are ones that are marked by bouy's with permits on them...
this is good to know. i have NEVER seen a permit number of any kind on a swim bouy... im going to look for it.
now thats not saying i would fish in a swim zone with people swiming thats just wrong, but im always amazed at the nerve people have asking me to essentially fish the other side of a lake because im within a half mile of thier supposed swim zone, which is nothing more than a few roped off bouys and the like.