Looking for RV park near Chicagoland

[DaveSchwartz]

Got tickets for the Foo Fighters 2015 tour kick-off in August at Wrigley Field so am going to turn it into an RV vacation. I'm looking for recommendations on campgrounds with access to transit into the city and especially Wrigley Field.

Thanks

[delomax]

Indiana Dunes State Park is about a mile from the Southshore Line that will take you downtown. Pretty reasonable to ride the train, staying at IDSP it's pricey, as they will peg you for being an out of stater.
Indiana Dunes National Lakeshore Campground is nice, but it's rustic (no electric at sites) they do have pay showers. It also is easy to get to the train.
These are ones off the top of my head, if I think of more I'll stop back!!

[MartyQ]

There is a campground right off I-80 a few miles west of I-57. Never been there but see it as I drive I-80. Think it is called Chicagoland Campground.