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Home Checking Accounts Connecticut Checking Greenwich, Connecticut iAdvertiser Disclosure
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Best Banks & Checking Accounts in Greenwich, Connecticut - May 2026

The best checking rates for Greenwich, Connecticut include Patriot Bank N.A.Patriot Bank N.A.100 Mason St, Greenwich, CT 06830F2.4 ★Texas Ratio: 45.79% CA IOLTA/IOLA Checking at 2.80% APY, First County BankFirst County Bank59 Mason St, Greenwich, CT 06830A+5.0 ★Texas Ratio: 2.27% High Yield Checking at 2.22% APY, Connecticut Community BankConnecticut Community Bank115 E Putnam Ave, Greenwich, CT 06830A+5.0 ★Texas Ratio: 0.77% Premium NOW Checking at 0.15% APY, Greenwich Municipal Employees Federal Credit UnionGreenwich Municipal Employees Federal Credit Union439 W Putnam Ave, Greenwich, CT 06830 1053A+5.0 ★Texas Ratio: 2.08% Checking Accounts at 0.00% APY, and Paramount BankParamount BankA5.0 ★Texas Ratio: 10.91% Interest Checking at 2.00% APY. Checking account rates as of May 12, 2026 according to verified data from MonitorBankRates.

Greenwich has 4 local institutions in our database, with checking rates as high as 2.80% APY from Patriot Bank N.A. at 100 Mason St, Greenwich, CT, 06830. Use the tabs below to compare all available checking account types. Rates are continually updated — we recommend checking back frequently.

Checking account rates reflect recent market quotes and representative offers available to depositors in Greenwich, Connecticut. Checking Account Rates Last Updated and Verified: May 12, 2026

Compare Checking Account Rates Today in Greenwich, Connecticut & the Surrounding Area

Institutions:
Source: Verified Checking Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
CA IOLTA/IOLA Checking
2.80%
$0
Rate2.72%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
CT IOLTA/IOLA Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Municipal Interest Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
NY IOLTA/IOLA Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

First County Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.27%
59 Mason St
Greenwich, CT 06830
High Yield Checking
2.22%
$0
Rate2.20%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

Qualifications Required; Qualifying balance up to $15,000.00

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account (Checking)
2.00%
$0
Rate2.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account for Business (Checking) Business
2.00%
$0
Rate2.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
CT IOLTA/IOLA Checking
0.50%
$0
Rate0.49%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Nonprofit Interest Checking
0.50%
$0
Rate0.49%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
NY IOLTA/IOLA Checking
0.50%
$0
Rate0.49%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.15%
$25,000
Rate0.14%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.10%
$25,000
Rate0.09%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Business NOW Checking Business
0.05%
$100
Rate0.04%
Min Deposit$100
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
NOW Checking
0.05%
$100
Rate0.04%
Min Deposit$100
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.05%
$25,000
Rate0.04%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

First County Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.27%
59 Mason St
Greenwich, CT 06830
Interest Access Checking
0.01%
$0
Rate0.01%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

daily collected balance of $1.00 or more

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Municipal Interest Checking
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Nonprofit Interest Checking
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account (Checking)
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account for Business (Checking) Business
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Source: Verified Checking Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
CA IOLTA/IOLA Checking
2.80%
$0
Rate2.72%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
CT IOLTA/IOLA Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Municipal Interest Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
NY IOLTA/IOLA Checking
2.50%
$0
Rate2.44%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

First County Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.27%
59 Mason St
Greenwich, CT 06830
High Yield Checking
2.22%
$0
Rate2.20%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

Qualifications Required; Qualifying balance up to $15,000.00

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account (Checking)
2.00%
$0
Rate2.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Nonprofit Interest Checking
0.50%
$0
Rate0.49%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.15%
$25,000
Rate0.14%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.10%
$25,000
Rate0.09%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Premium NOW Checking
0.05%
$25,000
Rate0.04%
Min Deposit$25,000
Min Balance
UpdatedMay 4, 2026
Details

Variable

First County Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.27%
59 Mason St
Greenwich, CT 06830
Interest Access Checking
0.01%
$0
Rate0.01%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

daily collected balance of $1.00 or more

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Municipal Interest Checking
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
Nonprofit Interest Checking
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Paramount Bank
Institution Rating:
A5.0 ★ Texas Ratio: 10.91%
Interest Checking
2.00%
$100
Rate1.98%
Min Deposit$100
Min Balance
UpdatedMay 5, 2026
Details

No Fees

Waterbury Connecticut Teachers Federal Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.93%
A+ Checking
1.05%
$0
Rate1.05%
Min Deposit$0
Min Balance
UpdatedMay 6, 2026
Details

Qualifying balance up to $10,000.00

Ion Bank
Institution Rating:
A5.0 ★ Texas Ratio: 10.95%
Preferred Checking with Interest
0.20%
$0
Rate0.20%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Ion Bank
Institution Rating:
A5.0 ★ Texas Ratio: 10.95%
Preferred Checking with Interest
0.10%
$0
Rate0.10%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Northwest Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 3.08%
TOTAL PLUS CHECKING
0.05%
$25
Rate0.05%
Min Deposit$25
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

American Eagle Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.82%
Interest Checking
0.05%
$0
Rate0.05%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Albright Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 10.81%
Checking Plus
0.05%
$0
Rate0.05%
Min Deposit$0
Min Balance
UpdatedMay 12, 2026
Details

No additional details provided.

No Rewards accounts found at this time.
Source: Verified Checking Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
First County Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.27%
59 Mason St
Greenwich, CT 06830
Interest Access Checking
0.01%
$0
Rate0.01%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

daily collected balance of $1.00 or more

Paramount Bank
Institution Rating:
A5.0 ★ Texas Ratio: 10.91%
Free Checking
0.00%
$100
Rate0.00%
Min Deposit$100
Min Balance
UpdatedMay 5, 2026
Details

No Fees

Source: Verified Checking Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
Windsor Federal S&L
Institution Rating:
A5.0 ★ Texas Ratio: 9.09%
Student Checking Account
0.05%
$10
Rate0.05%
Min Deposit$10
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Connex Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.01%
Teen Green Checking
0.05%
$0
Rate0.05%
Min Deposit$0
Min Balance
UpdatedApr 22, 2026
Details

Visit a Branch

Windsor Federal S&L
Institution Rating:
A5.0 ★ Texas Ratio: 9.09%
Student Checking Account
0.02%
$10
Rate0.02%
Min Deposit$10
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Source: Verified Checking Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account for Business (Checking) Business
2.00%
$0
Rate2.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Connecticut Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.77%
115 E Putnam Ave
Greenwich, CT 06830
Business NOW Checking Business
0.05%
$100
Rate0.04%
Min Deposit$100
Min Balance
UpdatedMay 4, 2026
Details

Variable

Patriot Bank N.A.
Institution Rating:
F2.4 ★ Texas Ratio: 45.79%
100 Mason St
Greenwich, CT 06830
The One Account for Business (Checking) Business
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Newtown Savings Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.92%
Business NOW Checking Business
0.15%
$0
Rate0.15%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

New Haven Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.25%
Business Checking with Interest Business
0.10%
$0
Rate0.10%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

New Haven Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.25%
Business Interest Checking Business
0.10%
$0
Rate0.10%
Min Deposit$0
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Connex Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.01%
Complete Business Checking for Non-Profits Business
0.10%
$0
Rate0.10%
Min Deposit$0
Min Balance
UpdatedApr 22, 2026
Details

No additional details provided.

Connex Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.01%
Complete Business Checking Plus Business
0.10%
$0
Rate0.10%
Min Deposit$0
Min Balance
UpdatedApr 22, 2026
Details

No additional details provided.

DR Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.38%
BUSINESS NOW CHECKING & IOLTA Business
0.05%
$500
Rate0.00%
Min Deposit$500
Min Balance
UpdatedMay 5, 2026
Details

No additional details provided.

Northwest Community Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 3.08%
Business Checking Now Business
0.05%
$25
Rate0.05%
Min Deposit$25
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

American Eagle Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.82%
Small Business Checking Business
0.05%
$0
Rate0.05%
Min Deposit$0
Min Balance
UpdatedMay 4, 2026
Details

No additional details provided.

Paramount Bank
Institution Rating:
A5.0 ★ Texas Ratio: 10.91%
Small Business Checking Business
0.00%
$100
Rate0.00%
Min Deposit$100
Min Balance
UpdatedMay 5, 2026
Details

No Fees

Connex Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.01%
Complete Business Checking Business
0.00%
$0
Rate0.00%
Min Deposit$0
Min Balance
UpdatedApr 22, 2026
Details

No additional details provided.

Greenwich, CT Checking Rate Trends

Compare local Greenwich, CT checking rate quotes against the statewide average

Daily checking rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.

View Full Connecticut Checking Trends →
High-Yield Checking — CT Avg
1.103%
▲ 0.125 vs 7 days ago

Connecticut high-yield checking rates rose 0.125 points over the past 7 days to 1.103% APY.

Free Checking — CT Avg
0.646%
▲ 0.007 vs 7 days ago

Connecticut free checking rates rose 0.007 points over the past 7 days to 0.646% APY.

As of May 14, 2026 • Rate data sourced from 8,500+ monitored institutions Powered by MonitorBankRates

Methodology & Data Sources

Direct-Sourced & Verified Checking Rate Data: We aggregate checking account rates for Greenwich, Connecticut directly from the official websites of banks and credit unions using a combination of our proprietary rate aggregation technology and a dedicated team of rate updaters. By pulling this data straight from the institutions’ own digital properties and manually verifying the yields daily, we ensure that every checking rate displayed on MonitorBankRates.com is highly accurate and trustworthy.

Local, Regional, and National Coverage: Our systems and team constantly monitor the market to provide a complete picture of available yields in Greenwich, Connecticut. We feature a comprehensive mix of financial institutions, allowing you to easily compare localized checking rates from neighborhood credit unions, competitive offers from mid-sized regional banks, and high-yield checking accounts available to account holders in CT.

Daily Updates & Time-Stamped Accuracy: To maintain the highest level of data integrity, our rate updaters verify and update checking rates daily. Because checking account yields can fluctuate based on market conditions, every single checking product listed on our platform features its own specific “last updated” date.

Frequently Asked Questions

Do checking accounts in Greenwich, Connecticut earn interest?

Most traditional local checking accounts in Greenwich, Connecticut earn 0% interest. However, High-Yield Checking or Rewards Checking accounts from online banks and select local credit unions can pay interest rates comparable to savings accounts.

Are banks in Greenwich, Connecticut FDIC insured?

Yes. Legitimate banks with branches in Greenwich, Connecticut are FDIC insured up to $250,000 per depositor. Local Credit Unions are similarly insured by the NCUA.

What fees should I watch out for?

Common fees include Monthly Maintenance Fees (often waivable with direct deposit), Overdraft Fees, and Out-of-Network ATM fees. We recommend looking for “Free Checking” accounts that explicitly state no monthly fees.

What is a Rewards Checking account?

Rewards Checking accounts (sometimes called Kasasa accounts) offer high interest rates or cash back on debit card purchases in exchange for meeting monthly requirements like a minimum number of debit card transactions, direct deposit enrollment, or e-statement signup.

Best Checking Rates in Greenwich, Connecticut

Based on our current data, some of the highest checking account APYs available to residents of Greenwich, Connecticut include:
  • Patriot Bank N.A.
    CA IOLTA/IOLA Checking — 2.80% APY
  • First County Bank
    High Yield Checking — 2.22% APY
  • Connecticut Community Bank
    Premium NOW Checking — 0.15% APY
  • Greenwich Municipal Employees Federal Credit Union
    Checking Accounts — 0.00% APY
  • Paramount Bank
    Interest Checking — 2.00% APY
Checking Account Rates reflect actual verified offers from banks and credit unions actively accepting deposits in Greenwich, Connecticut. Your final available rate may depend on qualifying activity and daily market movements. Last Updated and Verified: May 12, 2026