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Lists · Deposits by county

Middlesex County, MA Bank Deposit Market Share

Bank of America, N.A. holds the largest share of deposits in Middlesex County, MA, 19.4%, followed by Citizens Bank, N.A. (10.6%) and Cambridge Savings Bank (6.4%). 42 institutions hold $83.13B at 441 offices as of June 30, 2026.

Institutions: 42 Offices: 441 Deposits: $83.13B Survey: FDIC Summary of Deposits, June 30, 2026
# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Bank of America, N.A. 43 $16.10B 19.37% — —
2 Citizens Bank, N.A. 49 $8.80B 10.58% — —
3 Cambridge Savings Bank 19 $5.31B 6.38% — —
4 TD Bank, N.A. 24 $5.25B 6.31% — —
5 Eastern Bank 33 $4.88B 5.87% — —
6 Leader Bank, N.A. 5 $4.10B 4.93% — —
7 Middlesex Savings Bank 22 $3.79B 4.55% — —
8 Manufacturers and Traders Trust Company 14 $3.59B 4.32% — —
9 Rockland Trust Company 29 $3.53B 4.24% — —
10 Santander Bank, N.A. 27 $3.33B 4.01% — —
11 Northern Bank & Trust Company 14 $2.82B 3.40% — —
12 The Village Bank 10 $1.80B 2.16% — —
13 JPMorgan Chase Bank, N.A. 32 $1.78B 2.14% — —
14 Avidia Bank 5 $1.58B 1.90% — —
15 Beacon Bank & Trust 12 $1.50B 1.80% — —
16 The Lowell Five Cent Savings Bank 12 $1.34B 1.62% — —
17 Watertown Savings Bank 10 $1.25B 1.51% — —
18 East Cambridge Savings Bank 11 $1.24B 1.50% — —
19 Main Street Bank 4 $1.21B 1.46% — —
20 Salem Five Cents Savings Bank 12 $1.15B 1.38% — —
21 Mutualone Bank 3 $924.5M 1.11% — —
22 Everett Co-Operative Bank 2 $924.0M 1.11% — —
23 Needham Bank 3 $873.7M 1.05% — —
24 Winchester Co-Operative Bank 2 $773.8M 0.93% — —
25 Stonehambank 2 $773.2M 0.93% — —
26 Reading Co-Operative Bank 8 $765.2M 0.92% — —
27 Winchester Savings Bank 4 $761.9M 0.92% — —
28 The Savings Bank 4 $594.3M 0.71% — —
29 Middlesex Federal Savings, F.A. 4 $576.5M 0.69% — —
30 PNC Bank, N.A. 4 $420.5M 0.51% — —
31 Eagle Bank 3 $418.7M 0.50% — —
32 Winter Hill Bank, FSB 3 $299.3M 0.36% — —
33 Washington Savings Bank 2 $249.3M 0.30% — —
34 Rollstone Bank & Trust 2 $111.0M 0.13% — —
35 Fidelity Co-Operative Bank 1 $107.3M 0.13% — —
36 North Cambridge Co-Operative Bank 1 $60.3M 0.07% — —
37 Northeast Community Bank 1 $37.7M 0.05% — —
38 TruNorth Bank 1 $37.0M 0.04% — —
39 Unibank for Savings 1 $32.8M 0.04% — —
40 First-Citizens Bank & Trust Company 1 $29.6M 0.04% — —
41 Dedham Institution for Savings 1 $16.1M 0.02% — —
42 The Bank of New York Mellon Trust Company, N.A. 1 $0 <0.01% — —

About this list

Deposits are those held at each institution's offices in Middlesex County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.

The change from 2025 is not shown for this market: some offices that closed during the year cannot be placed in a single county or metro area, and they hold enough deposits to move the comparison. The 2026 shares are complete.

Wider markets

Massachusetts deposits by institution Boston-Cambridge-Newton, MA-NH metro area Massachusetts bank directory

Other counties in Massachusetts

Suffolk CountyNorfolk CountyEssex CountyWorcester CountyPlymouth CountyBristol CountyHampden CountyBarnstable CountyHampshire CountyBerkshire CountyFranklin CountyDukes CountyNantucket County

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