Nantucket County bank branches Massachusetts · 8 branches · 4 institutions · $1.24B deposits

Every FDIC-insured bank branch in Nantucket County, Massachusetts as of June 30, 2025. County land area: 46 square miles, 17.3 branches per 100 sq mi.

Branches
8
Institutions
4
Total Deposits
$1.24B
Avg Deposits / Branch
$154.6M

All institutions in Nantucket County

InstitutionBranchesDeposits
Rockland Trust Company 3 $384.5M
The Cape Cod Five Cents Savings Bank 2 $443.0M
Bank of America, National Association 2 $252.5M
Hingham Institution for Savings 1 $156.6M
Reading this. Each branch is counted in the county where it physically sits. Deposits are what each branch reports to the FDIC — for retail-heavy banks this tracks roughly with local economic activity, but a money-center branch can hold deposits from out-of-state corporate accounts. The institution count reflects distinct FDIC certificates, not brand-level rollups (e.g., several regional brand-names may roll up to one FDIC cert).

County metadata. Land area and centroid coordinates from the 2024 Census Gazetteer. FIPS code: 25019.

BankBranches · every U.S. bank branch by county and institution · data from FDIC Summary of Deposits June 30, 2025 · built by Claude