For residents of Illinois looking for 18+ casinos, the options are limited. Illinois state gambling laws permit 21+ players at land based casinos, whilst there are online options that have a minimum age of 18+.
Here is a list of casinos in Illinois and their minimum gambling age.
| Casino | Address | Legal Age |
| Rivers Casino Des Plaines – Chicago | 3000 S River Rd, Chicago, 60018, Illinois | 21+ |
| Grand Victoria Casino – Elgin | 250 S Grove Ave, Elgin, 60120, Illinois | 21+ |
| Hollywood Casino Joliet | 777 Hollywood Blvd, Joliet, 60436, Illinois | 21+ |
| Harrah’s Joliet | 151 N Joliet St, Joliet, 60432, Illinois | 21+ |
| Jumer’s Casino and Hotel | 777 Jumer Dr, Rock Island, 61201, Illinois | 21+ |
| DraftKings Casino Queen Hotel St. Louis | 200 S Front St, St. Louis, 62201, Illinois | 21+ |
| Argosy Casino Alton | 1 Piasa St, Alton, Alton, 62002, Illinois | 21+ |
| Harrah’s Metropolis | 100 E Front St, Metropolis, 62960, Illinois | 21+ |