| Business | Phone |
| Bank Iowa 1302 5th Ave N, Humboldt 50548 | (515) 332-1808 |
| Spectrum Investment Ctr 506 Sumner Ave, Humboldt 50548 | (515) 332-1451 |
| Northwest Federal Savings Bank 801 Sumner Ave, Humboldt 50548 | (515) 332-1840 |
| Us Bank 701 Sumner Ave, Humboldt 50548 | (515) 332-1142 |