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Bankular
Local banking directory

Banks and Bank Branches in Marlborough, Massachusetts

The FDIC reported 8 deposit-reporting offices from 8 institutions in Marlborough as of June 30, 2025. Bankular currently provides 19 detailed location pages with addresses, maps and directions.

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FDIC-reported offices8
Institutions reporting8
Detailed location pages19
Reported branch deposits$1.63B
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 institutionMain Street Bank45.79% of deposits
Top three share84.33%
Deposit HHI3,194Higher concentration
Current detailed pages1911 more than the June 2025 SOD count

Main Street Bank held 45.79% of reported branch deposits in Marlborough. The three largest institutions together held 84.33%. Bankular places the resulting HHI of 3,194 in its higher concentration descriptive band.

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Detailed bank locations in Marlborough

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Detailed directory

Institutions with validated location pages

Ordered by detailed location count
Chase logo

Chase

1 detailed location

Location pages

Detailed bank locations in Marlborough

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Local deposit market

Reported offices, deposits and market share

FDIC SOD, June 30, 2025
InstitutionReported officesDepositsShare
Main Street Bank1$748.4M45.79%
Bank of America1$503.1M30.78%
TD Bank1$126.7M7.75%
Avidia Bank1$125.1M7.65%
Citizens1$85.1M5.20%
Chase1$23.5M1.44%
M&T Bank1$18.5M1.13%
Rockland Trust Company1$4.0M0.24%