| Isabella Bank Barryton Branch | Barryton(989) 382-7794 | (989) 382-7794 |
| Isabella Bank Big Rapids East Branch | Big Rapids(231) 796-3516 | (231) 796-3516 |
| Isabella Bank Big Rapids West Branch | Big Rapids(231) 796-8507 | (231) 796-8507 |
| Isabella Bank Blanchard Branch | Blanchard(989) 561-2400 | (989) 561-2400 |
| Isabella Bank Breckenridge Branch | Breckenridge(989) 842-3191 | (989) 842-3191 |
| Isabella Bank Clare South Branch | Clare(989) 386-4500 | (989) 386-4500 |
| Isabella Bank Clare North Branch | Clare(989) 386-6439 | (989) 386-6439 |
| Isabella Bank Farwell Branch | Farwell(989) 588-9945 | (989) 588-9945 |
| Isabella Bank Freeland Branch | Freeland(989) 695-2427 | (989) 695-2427 |
| Isabella Bank Greenville Branch | Greenville(616) 754-5100 | (616) 754-5100 |
| Isabella Bank Hemlock Branch | Hemlock(989) 642-5217 | (989) 642-5217 |
| Isabella Bank Ithaca Branch | Ithaca(989) 875-5080 | (989) 875-5080 |
| Isabella Bank Lake Branch | Lake(989) 544-2181 | (989) 544-2181 |
| Isabella Bank Lake Isabella Branch | Lake Isabella(989) 644-2452 | (989) 644-2452 |
| Isabella Bank Midland Branch | Midland(989) 832-6198 | (989) 832-6198 |
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| Isabella Bank South Mission Branch | Mt. Pleasant(989) 773-9880 | (989) 773-9880 |
| Isabella Bank University Branch | Mt. Pleasant(989) 773-4729 | (989) 773-4729 |
| Isabella Bank Pickard Branch | Mt. Pleasant(989) 773-2129 | (989) 773-2129 |
| Isabella Bank West High Branch | Mt. Pleasant(989) 772-3281 | (989) 772-3281 |
| Isabella Bank Main Office Branch | Mt. Pleasant(989) 772-9471 | (989) 772-9471 |
| Isabella Bank Remus Branch | Remus(989) 967-3619 | (989) 967-3619 |
| Isabella Bank Shepherd Branch | Shepherd(989) 828-6104 | (989) 828-6104 |
| Isabella Bank Six Lakes Branch | Six Lakes(989) 365-3511 | (989) 365-3511 |
| Isabella Bank Stanton Branch | Stanton(989) 831-5248 | (989) 831-5248 |
| Isabella Bank Canadian Lakes Branch | Stanwood(231) 972-7141 | (231) 972-7141 |
| Isabella Bank Weidman Branch | Weidman(989) 644-3347 | (989) 644-3347 |
| Isabella Bank Beal City Branch | Weidman(989) 644-3357 | (989) 644-3357 |
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