| Business | Phone |
| Fifth Third Bank 525 Newport Ct, Island Lake 60042 | (847) 526-1766 |
| First National Bank-Md 660 E State Rd, Island Lake 60042 | (847) 526-1770 |
| Midwest Bank & Trust Co 204 E State Rd, Island Lake 60042 | (847) 526-3100 |
| La Salle Bank 229 E State Rd, Island Lake 60042 | (847) 526-0216 |