Apple River Canyon State Park
Argyle Lake State Park

Beaver Dam State Park
Buffalo Rock State Park

Cahokia Mounds State Park
Cave-In-Rock State Park
Chain O'Lakes State Park

Delabar State Park
Dickson Mounds State Park
Dixon Springs State Park

Ferne Clyffe State Park
Fort Chartres Park
Fort Creve Coeur Park
Fort Defiance Park
Fort Kaskaskia State Park
Fort Massac State Park
Fox Ridge State Park
Franklin Creek State Park

Gebhard Woods State Park
Giant City State Park
Goose Lake Prairie State Park
 

Hazlet State Park
Hennepin Canal Parkway State Park
Holten State Park
Horseshoe Lake State Park

Illini State Park
Illinois Beach State Park
Illinois Caverns State Natural Area

Johnson Sauk Trail State Park
Jubilee College State Park

 

Kankakee River State Park
Kickapoo State Park

Lake Le-Aqua-Na State Park
Lake Murphysboro State Park
Lincoln Trail Homestead State Park
Lincoln Trail State Park
Lincolns New Salem State Park
Lowden State Park

Matthiessen State Park
Mississippi Palisades State Park
Montebello State Park
Moraine Hills State Park
Moraine View State Park
Morrison-Rockwood State Park

Nauvoo State Park
 

Railsplitter State Park
Ramsey Lake State Park
Red Hills State Park
Rock Cut State Park
 

Sam Parr State Park
Sangchris Lake State Park
Siloam Springs State Park
Silver Springs State Park
South Shore State Park
Spitler Woods State Park
Spring Lake State Park
Starved Rock State Park
State Park Place
Stephen A Forbes State Park

Walnut Point State Park
Walnut Point State Park Lake
Wayne Fitzgerrell State Park
Weldon Springs State Park
White Pines Forest State Park
Wolf Creek State Park