| Business | Phone |
| Parks & Recreation Dept 2 W Springfield Rd, Sullivan 63080 | (573) 468-5216 |
| Meramec State Park 115 Meramec Park Dr, Sullivan 63080 | (573) 468-6072 |
| Meramec State Park 836 Meramec Shop Dr, Sullivan 63080 | (573) 468-3089 |
| Meramec State Park 891 Fisher Cave Dr, Sullivan 63080 | (573) 468-8555 |
| Meramec State Park Naturalist 115 Meramec Park Dr, Sullivan 63080 | (573) 468-8155 |
| Meramec State Park Ranger 115 Meramec Park Dr, Sullivan 63080 | (573) 468-8166 |