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Bankular
Local banking directory

Banks and Bank Branches in Williamsville, New York

The FDIC reported 17 deposit-reporting offices from 7 institutions in Williamsville as of June 30, 2025. Bankular currently provides 18 detailed location pages with addresses, maps and directions.

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FDIC-reported offices17
Institutions reporting7
Detailed location pages18
Reported branch deposits$3.16B
SOD reporting dateJune 30, 2025

Reported-office totals come from the annual FDIC Summary of Deposits survey. Maps and branch-detail links appear only for locations with a validated Bankular location page.

Market analysis

What the deposit data shows

FDIC SOD, June 30, 2025
Largest institutionM&T Bank30.61% of deposits
Top three share79.48%
Deposit HHI2,287Moderate concentration
Current detailed pages181 more than the June 2025 SOD count

M&T Bank held 30.61% of reported branch deposits in Williamsville. The three largest institutions together held 79.48%. Bankular places the resulting HHI of 2,287 in its moderate concentration descriptive band.

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Detailed bank locations in Williamsville

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Detailed directory

Institutions with validated location pages

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Detailed bank locations in Williamsville

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Local deposit market

Reported offices, deposits and market share

FDIC SOD, June 30, 2025
InstitutionReported officesDepositsShare
M&T Bank5$968.6M30.61%
KeyBank4$829.5M26.22%
Bank of America1$716.5M22.64%
Citizens2$301.9M9.54%
NBT Bank3$211.4M6.68%
CNB Bank1$118.0M3.73%
Nextier Bank1$18.1M0.57%