Credit Unions | Mass Bay Credit Union
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Mass Bay Credit Union


Mass Bay Credit Union is a NCUA insured credit union headquartered at 147 W 4TH ST, SOUTH BOSTON, MA 02127.
It was founded in 1936 and has approximately $362 million in assets. Customers can open an account at one of its 7 branches.

Deposit Rates - March 13, 2026

SAVINGS RATES APY MIN
SAV
0.03% $5 Compare
SAV
0.05% $500 Compare
SAV
0.10% $10,000 Compare
CD RATES APY MIN
6 Mo CD
4.00% $500 Compare
10 Mo CD
3.75% $500 Compare
12 Mo CD
3.75% $500 Compare
14 Mo CD
3.00% $500 Compare
16 Mo CD
3.75% $500 Compare
17 Mo CD
3.00% $500 Compare
18 Mo CD
3.00% $500 Compare
24 Mo CD
3.65% $500 Compare
28 Mo CD
2.65% $500 Compare
36 Mo CD
3.45% $500 Compare
48 Mo CD
3.00% $500 Compare
60 Mo CD
3.35% $500 Compare
MM RATES APY MIN
Money Market
0.15% $2,500 Compare
Money Market
0.35% $10,000 Compare
Money Market
0.50% $20,000 Compare
Money Market
0.60% $50,000 Compare
Money Market
0.80% $100,000 Compare
Money Market
0.80% $250,000 Compare
FIXED IRA RATES APY MIN
10 Mo FIRA
3.75% $500
12 Mo FIRA
3.75% $500
16 Mo FIRA
3.75% $500
17 Mo FIRA
3.00% $500
18 Mo FIRA
3.00% $500
VARIABLE IRA RATES APY MIN
VIRA
0.03% $0
VIRA
0.05% $500
VIRA
0.10% $10,000
INT CHECKING RATES APY MIN
INTCK
0.03% $5




Overview 2026

General Credit Union Information

NCUA Insured Yes / State-Chartered
Charter Number # 68137
Date Established 1936
Assets $361.59 million
Loans $307.08 million
Deposits $249.64 million
Capital $40.33 million


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Branches

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Mass Bay Credit Union Locations

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