| Business | Phone |
| Arvest Bank 1206 N Highway 81 # 18, Duncan 73533 | (580) 470-1150 |
| Arvest Bank 729 W Main St, Duncan 73533 | (580) 255-7121 |
| Banc First 16 S 9th St, Duncan 73533 | (580) 255-4100 |
| Banc First 1616 W Elk Ave, Duncan 73533 | (580) 252-1800 |
| Bancfirst 1511 N Highway 81, Duncan 73533 | (580) 252-0130 |
| Bank Of Commerce 1601 Commerce St, Duncan 73533 | (580) 252-8070 |
| First Bank & Trust Co 1640 W Plato Rd # 100, Duncan 73533 | (580) 255-1810 |
| First Bank & Trust Co 923 W Main St, Duncan 73533 | (580) 255-1810 |
| Ibc Bank 1006 W Main St, Duncan 73533 | (580) 255-8187 |
| Ibc Bank 2210 N Highway 81, Duncan 73533 | (580) 255-9055 |
| Legacy Bank 1015 W Main St, Duncan 73533 | (580) 252-4400 |
| Legacy Bank 2024 N Highway 81, Duncan 73533 | (580) 252-6400 |
| Oklahoma National Bank 8th & Walnut Stamp;, Duncan 73533 | (580) 470-1122 |