| Business | Phone |
| Black River Elementary School 257 County Road 40, Sullivan 44880 | (419) 736-2161 |
| Black River High School 233 County Road 40, Sullivan 44880 | (419) 736-3303 |
| Black River Middle School 257 County Road 40, Sullivan 44880 | (419) 736-3304 |
| Black River School District 257a County Road 40, Sullivan 44880 | (419) 736-3300 |