| Business | Phone |
| Central Bank 1400 18th St, Spirit Lake 51360 | (712) 336-4100 |
| First Trust Bank 1201 18th St, Spirit Lake 51360 | (712) 336-4158 |
| First Trust Bank 802 Lake St, Spirit Lake 51360 | (712) 336-2180 |
| Northwest Federal Savings Bank 1109 18th St, Spirit Lake 51360 | (712) 336-1034 |
| Security State Bank 1533 18th St, Spirit Lake 51360 | (712) 336-4060 |