| Business | Phone |
| De Kalb High School 3424 County Road 427, Waterloo 46793 | (260) 837-7841 |
| De Kalb Junior High School 3338 County Road 427, Waterloo 46793 | (260) 837-7811 |
| De Kalb School District Supt 3326 County Road 427, Waterloo 46793 | (260) 920-1011 |
| Dekalb Central Schools Supt 3326 County Road 427, Waterloo 46793 | (260) 281-2466 |
| Waterloo Elementary School 300 E Douglas St, Waterloo 46793 | (260) 837-7278 |