Banks in Mercer Island, Washington
We list 8 bank branches in Mercer Island from 8 FDIC-insured banks, in 1 ZIP code. The most branches belong to Columbia Bank (1), KeyBank National Association (1), WaFd Bank (1) and Banner Bank (1).
- 8branches
- 8banks
- 1ZIP codes
All bank branches in Mercer Island
Showing 8 of 8
| Bank | Branch | Address | ZIP | Map |
|---|---|---|---|---|
| Columbia Bank | Mercer Island Branch | 7803 Se 27th St | 98040 | Map |
| KeyBank National Association | Mercer Island Branch | 2731 77th Ave Se | 98040 | Map |
| WaFd Bank | Mercer Island Branch | 7633 Se 27th St | 98040 | Map |
| Banner Bank | Mercer Island Branch | 2918 78th Ave Se | 98040 | Map |
| Bank of America, National Association | Mercer Island Branch | 2830 80th Ave Se | 98040 | Map |
| Wells Fargo Bank, National Association | Mercer Island Branch | 3001 78th Ave Se | 98040 | Map |
| JPMorgan Chase Bank, National Association | Mercer Island Branch | 7900 Se 28th St | 98040 | Map |
| U.S. Bank National Association | Mercer Island Branch | 2737 78th Ave Se | 98040 | Map |
Source: FDIC BankFind Suite, retrieved 2026-09-20. Hours and phone numbers are not part of this data: check the bank’s website before you visit.
Frequently asked questions
How many banks are in Mercer Island, WA?
Our list has 8 banks with 8 branches in Mercer Island. Branches open and close, so confirm with the bank.
Which bank has the most branches in Mercer Island?
In our list it is Columbia Bank, with 1 branches.
How do I contact a branch?
The FDIC data has no phone numbers. Open the bank’s official website from its profile page here, or use the number on your card or statement.