A

• Apple River Canyon State Park
• Argyle Lake State Park

B

• Beall Woods State Park
• Beaver Dam State Park
• Buffalo Rock State Park

C

• Cahokia Mounds State Park
• Campbells Island State Park
• Castle Rock State Park
• Cave-In-Rock State Park
• Chain O'Lakes State Park
• Channahon Parkway State Park

D

• Delabar State Park
• Dickson Mounds State Park
• Dixon Springs State Park
• Donnelley/Depue State Park

F

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

G

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

H

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

I

• Illini State Park
• Illinois Beach State Park

J

• James "pate" Philip State Park
• Johnson Sauk Trail State Park
• Jubilee College State Park

K

• Kankakee River State Park
• Kickapoo State Park

L

• 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

M

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

N

• Nauvoo State Park

P

• Pere Marquette State Park

R

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

S

• Sam Parr State Park
• Sangchris Lake State Park
• Sid Simpson 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
• Stephen A Forbes State Park

W

• Walnut Point State Park
• Wayne Fitzgerrell State Park
• Weldon Springs State Park
• White Pines Forest State Park
• William G. Stratton State Park
• Wolf Creek State Park