For residents of Iowa looking for 18+ casinos, the options are limited. Iowa 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 Iowa and their minimum gambling age.
| Casino | Address | Legal Age |
| Ameristar Council Bluffs | 2200 River Rd, Council Bluffs, Iowa 51501 | 21+ |
| Harrah’s Council Bluffs | 1 Harrah’s Blvd, Council Bluffs, Iowa 51501 | 21+ |
| Horseshoe Council Bluffs | 2701 23rd Ave, Council Bluffs, Iowa 51501 | 21+ |
| Rhythm City Casino Resort | 7077 Elmore Avenue, Davenport, Iowa 52807 | 21+ |
| The PZazz Casino | 3001 Winegard Dr, Burlington, Iowa 52601 | 21+ |
| Riverside Casino & Golf Resort | 3184 IA-22, Riverside, Iowa 52327 | 21+ |
| Wild Rose Casino & Resort | 777 Wild Rose Dr, Clinton, Iowa 52732 | 21+ |
| Prairie Meadows | 1 Prairie Meadows Dr, Des Moines, Iowa 50009 | 21+ |
| Lakeside Hotel Casino | 777 Casino Drive, Osceola, Iowa 50213 | 21+ |
| Meskwaki Casino Hotel | 1504 305th St, Tama, Iowa 52339 | 21+ |
| Wild Rose Casino & Resort, Jefferson | 777 Wild Rose Rd, Jefferson, Iowa 50129 | 21+ |
| Hard Rock Hotel & Casino Sioux City | 111 3rd St, Sioux City, Iowa 51101 | 21+ |
| Blackbird Bend Casino | 17214 210th St, Onawa, Iowa 51040 | 21+ |
| Wild Rose Casino & Resort, Emmetsburg | 777 Main St, Emmetsburg, Iowa 50536 | 21+ |
| Winnavegas Casino & Resort | 1500 330th St, Sloan, Iowa 51055 | 21+ |
| Isle Casino Hotel Waterloo | 777 Isle of Capri Blvd, Waterloo, 50701 | 21+ |
| Casino Queen Marquette | 100 Anti Monopoly, Marquette, Iowa 52158 | 21+ |
| Q Casino and Hotel | 1855 Greyhound Park Rd, Dubuque, Iowa 52001 | 21+ |