Total Assets
$2.8B
Total Deposits
$2.3B
Branches
37
Established
1870
Ion Bank is a bank headquartered in Naugatuck, Connecticut, established in 1870. It holds $2.8B in total assets across 37 branch locations. In our editorial opinion, based on public FDIC/NCUA data, Ion Bank earns a TFS Financial Health Grade of B (79.3/100) — our editorial assessment, not an official rating or financial advice.
TFS Health Grade
79.3 / 100
Good financial health
How we gradeTFS Health Grades are our editorial opinion based on public FDIC/NCUA data — not an official rating, not financial advice.
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Financial data through June 30, 2026. Updated by TFS August 28, 2026. Data sourced from FDIC BankFind Suite as of 2026-Q2. This data is provided by the federal government and is believed to be accurate, but TheFinanceSection.com cannot guarantee its completeness or timeliness.
Data sourced from CFPB Consumer Complaint Database. This data is provided by the federal government and is believed to be accurate, but TheFinanceSection.com cannot guarantee its completeness or timeliness.
| Branch | Address | City | State | Type |
|---|---|---|---|---|
| Ion BankHQ | 87 Church St | Naugatuck | CT | 11 |
| Ion Bank | 75 Tremont St | Ansonia | CT | 11 |
| Ion Bank | 218 Maple Ave | Cheshire | CT | 11 |
| Ion Bank | 4 Main St | Farmington | CT | 11 |
| Ion Bank | 2989 Whitney Ave | Hamden | CT | 11 |
| Ion Bank | 500 W Main St | Meriden | CT | 11 |
| Ion Bank | 1336 E Main St | Meriden | CT | 11 |
| Ion Bank | 600 Middlebury Rd | Middlebury | CT | 11 |
| Ion Bank | 543 Rubber Ave | Naugatuck | CT | 29 |
| Ion Bank | 251 Church St | Naugatuck | CT | 21 |
| Ion Bank | 1430 New Haven Rd | Naugatuck | CT | 11 |
| Ion Bank | 71 Oxford Rd | Oxford | CT | 11 |
| Ion Bank | 24 Waterbury Rd | Prospect | CT | 11 |
| Ion Bank | 363 Main St S | Southbury | CT | 11 |
| Ion Bank | 376 North Main Street | Southington | CT | 11 |
| Ion Bank | 1751 Ellington Rd | South Windsor | CT | 11 |
| Ion Bank | 79 Main St | Unionville | CT | 11 |
| Ion Bank | 665 N Colony Rd | Wallingford | CT | 11 |
| Ion Bank | 910 Wolcott St | Waterbury | CT | 11 |
| Ion Bank | 3670 E Main St | Waterbury | CT | 11 |
| Ion Bank | 300 Pierpont Rd | Waterbury | CT | 29 |
| Ion Bank | 544 Straits Tpke | Watertown | CT | 11 |
| Ion Bank | 670 Main St N | Woodbury | CT | 11 |
| Ion Bank | 135 N Washington Ave | Bergenfield | NJ | 11 |
| Ion Bank | 175 Homans Ave | Closter | NJ | 11 |
| Ion Bank | 189 County Rd | Cresskill | NJ | 11 |
| Ion Bank | 76 Engle St | Englewood | NJ | 24 |
| Ion Bank | 76 Engle St | Englewood | NJ | 11 |
| Ion Bank | 159 Broadway | Hillsdale | NJ | 11 |
| Ion Bank | 310 Broad Ave | Leonia | NJ | 11 |
| Ion Bank | 261 Comly Rd | Lincoln Park | NJ | 11 |
| Ion Bank | 223 Changebridge Rd | Montville | NJ | 11 |
| Ion Bank | 400 River Rd | New Milford | NJ | 11 |
| Ion Bank | 19 Chapin Rd | Pinebrook | NJ | 21 |
| Ion Bank | 740 Palisade Ave | Teaneck | NJ | 11 |
| Ion Bank | 1505 Teaneck Rd | Teaneck | NJ | 11 |
| Ion Bank | 80 County Rd | Tenafly | NJ | 11 |
Data sourced from FDIC BankFind Suite. This data is provided by the federal government and is believed to be accurate, but TheFinanceSection.com cannot guarantee its completeness or timeliness.
Data sourced from FDIC Enforcement Decisions and Orders / NCUA. This data is provided by the federal government and is believed to be accurate, but TheFinanceSection.com cannot guarantee its completeness or timeliness.
TFS Financial Health Grades represent our editorial assessment based on publicly available data and our proprietary methodology. They do not represent financial advice or an official government rating. Data on this page is sourced from federal government databases and is believed to be accurate.
Benchmarked against 60 active, federally insured banks reporting in the same quarter and holding roughly 0.5×–2× its assets. Same-state and overlapping-market peers are prioritized.
TFS health score
79.3
Tier 1 capital ratio
11.91%
Return on assets
0.93%
Non-performing loans
1.50%
Efficiency ratio
72.60%
Asset growth (YoY)
-0.14%
Suggested direct comparisons
Danbury, CT
$3.3B
Complaint percentiles are intentionally withheld while TFS audits CFPB company matching and import coverage. Peer conclusions use complete same-quarter regulatory metrics only.