Cos Cob, Connecticut (CT) Savings Rates - March 2026
Brian McKay
Brian McKay
Founder & Data Architect- Automated Online Rate Data Aggregation
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The best savings rates for Cos Cob, Connecticut and the surrounding area include The First Bank of GreenwichThe First Bank of Greenwich444 E Putnam Ave, Cos Cob, CT 06807A+5.0 ★Texas Ratio: 0.00% Platinum Savings at 3.71% APY, Windsor Federal S&LWindsor Federal S&L270 Broad St, Windsor, CT 06095A5.0 ★Texas Ratio: 9.09% Student Savings Account at 5.12% APY, Newtown Savings BankNewtown Savings Bank39 Main St, Newtown, CT 06470A5.0 ★Texas Ratio: 6.92% Great Start Savings at 5.00% APY, General Electric Employees Federal Credit UnionGeneral Electric Employees Federal Credit Union1 Lafayette Cir Ste 1, Bridgeport, CT 06604 6021A5.0 ★Texas Ratio: 8.21% Jump Start Savings at 5.00% APY, and Waterbury Connecticut Teachers Federal Credit UnionWaterbury Connecticut Teachers Federal Credit Union773 Straits Tpke, Middlebury, CT 06762 2852A+5.0 ★Texas Ratio: 0.93% Head Start Savings at 4.60% APY. Savings rates as of March 25, 2026 according to verified data from MonitorBankRates.
To see how these savings rates in Cos Cob, Connecticut, and the surrounding area, compare, use our comprehensive tables below for side-by-side comparisons to find the best savings rates available. Rates in Cos Cob, Connecticut (CT) are continually updated — we recommend checking back frequently.
Savings rates reflect recent market quotes and representative offers available to depositors in Cos Cob, Connecticut and the surrounding area. Last Updated and Verified: March 25, 2026
Compare the Best Savings Rates in Cos Cob, Connecticut & Surrounding Communities
Required minimum deposit of $25,000.00 of funds not on deposit with The First Bank of Greenwich, a Platinum Checking account must be linked to this promotional account with a $2,500.00 minimum average balance or direct deposit of a paycheck, pension, or other government benefit in order to earn the promotional APY and avoid a $5 monthly service charge.
with checking
with checking
The Platinum Savings account will earn 3.14% APY if no Platinum Checking account is linked. If the Platinum Savings balance falls below $25,000.00 the account will earn .05% APY and incur a $5.00 monthly Service Fee.
Qualifying balance up to $1,000.00
Qualifying balance up to $1,000.00
Qualifying balance up to $1,000.00
Qualifying balance up to $1000.00
Boost Your Rate 1.00% with Round-Up Checking
Intro rate subject to change
Rate is subject to certain terms and conditions. You must deposit at least $5,000 to open your account and maintain $25 to earn the disclosed APY. Rate and APY may change at any time. Fees may reduce earnings.
bump up for PayBackSM or Quarter Back® customers
Qualifying balance up to $1,000.00
over current rate account is earning
Qualifications Required
bump up for PayBackSM or Quarter Back® customers
Rate is variable and subject to change after the account is open. Rate effective 12/18/2025. APY (Annual Percentage Yield) for Smart Savings is 3.00% and interest rate is 2.96%. The minimum to open a Smart Savings account is $100. Smart Savings is free of monthly maintenance charges. Fees may reduce earnings. Excessive transfers or withdrawals may result in fees.
Qualifying balance up to $2,000.00
Qualifying balance up to $10,000.00
Qualifying balance up to $5,000.00
Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.
Cos Cob, CT Savings Rate Trends
Compare local Cos Cob, CT savings rate quotes against the statewide average
Weekly savings rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
Connecticut high-yield savings rates rose 0.979 points this week to 1.562% APY, up from 0.582% last week.
Connecticut standard savings rates fell 0.168 points this week to 0.474% APY, down from 0.642% last week.
Methodology & Data Sources
Direct-Sourced & Verified Savings Rate Data: We aggregate savings account rates for Cos Cob, Connecticut directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every savings rate displayed on MonitorBankRates.com is highly accurate and trustworthy.
Local, Regional, and National Coverage: Our systems constantly monitor the market to provide a complete picture of available yields in Cos Cob, Connecticut. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to large national institutions available to savers in CT.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update savings rates daily. Because savings account yields can fluctuate rapidly, every product listed features its own specific “last updated” date, giving you complete transparency.
Frequently Asked Questions about Savings Accounts in Cos Cob, Connecticut
What is a High-Yield Savings Account (HYSA)?
Are savings accounts in Cos Cob, Connecticut safe?
How often do savings rates change in Cos Cob, Connecticut?
Do I need a minimum deposit to open a savings account?
What is the difference between a Savings Account and a Money Market Account?
Are online banks better than local banks in Cos Cob, Connecticut?
How do I open a savings account in Cos Cob, Connecticut?
Best Savings Rates in Cos Cob, Connecticut
- The First Bank of Greenwich
Platinum Savings — 3.71% APY - Windsor Federal S&L
Student Savings Account — 5.12% APY - Newtown Savings Bank
Great Start Savings — 5.00% APY - General Electric Employees Federal Credit Union
Jump Start Savings — 5.00% APY - Waterbury Connecticut Teachers Federal Credit Union
Head Start Savings — 4.60% APY
