| Business | Phone |
| Humboldt Community School Dist 1408 9th Ave N, Humboldt 50548 | (515) 332-1330 |
| Humboldt High School 1500 Wildcat Rd, Humboldt 50548 | (515) 332-1430 |
| Humboldt Junior High School 210 7th St N, Humboldt 50548 | (515) 332-2812 |
| St Mary's School 303 3rd Ave N, Humboldt 50548 | (515) 332-2134 |
| Taft Elementary School 612 2nd Ave N, Humboldt 50548 | (515) 332-3216 |