| Business | Phone |
| Clark Elementary School 420 E Jefferson St, Osceola 50213 | (641) 342-6320 |
| Senior High Osceola 50213 | (641) 342-6505 |
| Clarke District Administration 104 1/2 S Fillmore St, Osceola 50213 | (641) 342-4969 |
| Clarke Junior High School 800 N Jackson St, Osceola 50213 | (641) 342-4221 |