Compare the best banks and credit unions in Connecticut — up to 3.30% APY, verified fees, minimums, and membership rules from 28+ local institutions.
Connecticut residents have access to a mix of state-chartered credit unions, regional community banks, and nationwide online banks. This page ranks the strongest options for savings APY, checking rewards, and CD specials — all verified against the institution's own rate page as of September 2026.
Best banks and credit unions in Connecticut 2026
USALLIANCE Financial — CD: 4.36% APY, $500 min, no monthly fee. 12-month Certificate Account: $500 minimum balance; the special and the regular 12-month certificate carry the same rate; a premature withdrawal incurs a significant penalty. Read Sep 7, 2026 on usalliance.org. Rates as of 2026-09-01 per the page.
Navy Federal Credit Union — CD: 3.70% APY, $1,000 min, no monthly fee. 12-month Short-Term Certificate: $1K minimum APY column; 3.70% at $1K and $20K, 3.75% at $100K; penalties apply for early withdrawal. Read Sep 7, 2026 on navyfederal.org. Rates as of 2026-09-07 per the page.
USALLIANCE Financial — Savings: 3.30% APY, $500 min, no monthly fee. High Dividend Savings: $500.00 minimum balance required; day-of-deposit/day-of-withdrawal, rate may change daily; the rate table attaches no direct-deposit, card-use or balance-cap condition. Read Sep 7, 2026 on usalliance.org. Rates as of 2026-09-01 per the page.
Newtown Savings Bank — CD: 3.00% APY, $500 min, no monthly fee. 12-month 1 Year CD: All types of CDs require a minimum deposit of $500 to be opened and to earn the advertised APY; 180 days interest early-withdrawal penalty. Read Sep 7, 2026 on nsbonline.com. Rates as of 2026-05-19 per the page.
Thomaston Savings Bank — CD: 2.95% APY, $1,000 min, no monthly fee. 12-month Certificate of Deposit - Fixed Rate: $1,000 minimum to open; daily balances below $1,000 do not earn APY; APY effective date 09/02/2026. Read Sep 7, 2026 on thomastonsavingsbank.com. Rates as of 2026-09-02 per the page.
Polish & Slavic Federal Credit Union — CD: 1.20% APY, $500 min, no monthly fee. 12-month Term Share Account: Term Share Account $500-$49,999 band; minimum to earn the disclosed APY is $500; early withdrawal penalties may apply. Read Sep 7, 2026 on psfcu.com. Rates as of 2026-09-06 per the page.
Navy Federal Credit Union — Money Market: 0.80% APY, $2,500 min, no monthly fee. Money Market Savings Account (MMSA): Must maintain a minimum daily balance of $2,500 to earn dividends ($0-$2,499 earns 0.00% APY); $2,500-$9,999 tier. Read Sep 7, 2026 on navyfederal.org. Rates as of 2026-09-07 per the page.
Newtown Savings Bank — Money Market: 0.50% APY, no minimum, no monthly fee. Basic Money Market Account: No minimum deposit to open in a branch; $20 minimum daily balance to earn the APY. Read Sep 7, 2026 on nsbonline.com. Rates as of 2026-05-19 per the page.
Every bank with a branch in Connecticut
44 FDIC-insured banks run 889 full-service offices in Connecticut. 26 of them are community banks, and 19 operate nowhere else. This is the federal record: every figure below is the regulator's own.
Santander Bank, N.A. — 107 offices in Connecticut, of 556 nationwide, holding $1.90bn at 30 June 2025, leverage ratio 12.48%.
Union Savings Bank — 26 offices in Connecticut, and nowhere else, holding $2.40bn at 30 June 2025, leverage ratio 11.48%.
Ion Bank — 20 offices in Connecticut, of 32 nationwide, holding $1.77bn at 30 June 2025, leverage ratio 11.91%.
Beacon Bank and Trust — 18 offices in Connecticut, of 149 nationwide, leverage ratio 9.83%.
Deposits by office come from the FDIC Summary of Deposits, counted each 30 June; the leverage ratio is capital as a share of assets, from each bank's latest Call Report. Nothing here is blended into a score. Search by ZIP to see the offices nearest you.
Every bank we publish a page for in Connecticut
27 of them, largest first. Each page carries the bank's own Call Report figures and every office it runs.
Every office we publish a page for in Connecticut, by town. Each carries what that branch holds, when it opened and the other branches within five miles.
82 federally insured credit unions run 251 offices in Connecticut, between them serving 17,358,832 members. 26 carry the NCUA's low-income designation. Figures are from each credit union's own NCUA Call Report.
Navy Federal Credit Union — 3 offices in Connecticut, 15,350,733 members, $203.6bn in assets, net worth ratio 11.37%.
Affinity — 2 offices in Connecticut, 245,563 members, $4.40bn in assets, net worth ratio 8.14%.
Usalliance — 1 office in Connecticut, 194,175 members, $3.37bn in assets, net worth ratio 8.30%.
American Eagle Financial — 19 offices in Connecticut, 167,531 members, $2.76bn in assets, net worth ratio 9.78%.
Polish & Slavic — 1 office in Connecticut, 127,100 members, $2.73bn in assets, net worth ratio 11.26%.
Connecticut State Employees — 7 offices in Connecticut, 69,685 members, $2.70bn in assets, net worth ratio 8.51%.
Self-Help — 4 offices in Connecticut, 145,117 members, $2.41bn in assets, net worth ratio 25.90%.
Brightbridge — 1 office in Connecticut, 116,769 members, $2.39bn in assets, net worth ratio 10.29%.
Charter Oak — 15 offices in Connecticut, 86,156 members, $1.70bn in assets, net worth ratio 12.33%.
Sikorsky Financial — 11 offices in Connecticut, 67,020 members, $1.44bn in assets, net worth ratio 12.69%.
Selfreliance — 3 offices in Connecticut, 48,785 members, $1.13bn in assets, net worth ratio 12.63%.
Connex — 10 offices in Connecticut, 68,675 members, $1.04bn in assets, net worth ratio 9.39%.
A credit union is measured differently from a bank and the numbers are not interchangeable: the net worth ratio here is the NCUA's capital measure under 12 CFR 702, where 7% is well capitalised, and shares are the credit union equivalent of deposits. Membership usually turns on where you live or work, so a local credit union is often open to you even when its name suggests otherwise.
What makes a Connecticut bank account worth opening
Look at four things in order: the APY (does it beat the FDIC national average of about 0.60%?), the monthly fee (anything above $0 should come with a clear waiver path), the minimum opening deposit, and the membership rule for credit unions. Connecticut residents typically qualify for at least one large state-chartered credit union on residency alone, and that credit union is often the highest-APY option available locally.
Is my money safe at a Connecticut bank or credit union?
Yes, if the institution is federally insured. FDIC covers banks up to $250,000 per depositor, per ownership category; NCUA covers credit unions at the same limits. Every institution in this directory carries one of those insurances — the FDIC or NCUA ID is listed on the full provider row.
Rates and fees change frequently. Confirm current figures directly with each institution before applying, and see our editorial methodology for how this directory is built and maintained.