Williamsville, New York
Banks & credit unions in Williamsville
11 federally insured institutions operate a branch in Williamsville, New York, across 17 locations.
Each institution’s branch count below is for Williamsville only. Select one to see its branches in this town.
| # | Institution | Type | Branches in Williamsville | Total assets |
|---|---|---|---|---|
| 1 | Manufacturers and Traders Trust Company | Bank | 5 | $214.2B |
| 2 | KeyBank National Association | Bank | 4 | $185.98B |
| 3 | NBT Bank, National Association | Bank | 3 | $16.09B |
| 4 | Citizens Bank, National Association | Bank | 2 | $227.13B |
| 5 | Bank of America, National Association | Bank | 1 | $2.67T |
| 6 | Broadview | Credit union | 1 | $9.2B |
| 7 | CNB Bank | Bank | 1 | $8.5B |
| 8 | Nextier Bank, National Association | Bank | 1 | $2.85B |
| 9 | Western Division | Credit union | 1 | $225.6M |
| 10 | Amherst | Credit union | 1 | $42.5M |
| 11 | Kaleida Health | Credit union | 1 | $20.4M |
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026