Ion Bank
Naugatuck, CT · Owner: Ion Financial MHC Inc
$2.8B
total assets, June 30, 2026
$2.8B
total assets, June 30, 2026
Ion Bank is a state member bank based in Naugatuck, CT, owned by Ion Financial MHC Inc. As of June 30, 2026 it held $2.8 billion in assets and $2.3 billion in deposits; assets were down 0.1% from a year before. It has 36 branches in 2 states.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$2.8B
-0.1% in a year · +0.5% in a quarter
Deposits
$2.3B
-0.1% in a year · +0.8% in a quarter
Loans
$2.0B
-1.0% in a year · -2.0% in a quarter
Profit so far
$12.8M
Jan 1 to Jun 30, 2026 · -8.8% in a year
Capital ratio
11.91%
-0.72 pts in a year
Return on assets
0.93%
-0.27 pts in a year
Facts
- Type
- State member bank
- Head office
- 251 Church St, Naugatuck, CT, 06770
- County
- Naugatuck Valley
- Holding company
- Ion Financial MHC Inc
- Established
- Jan 1, 1870
- Employees
- 371
- Branches
- 36 in 2 states
- Website
- www.ionbank.com
- Id
- b18198
Quarter by quarter
March 31, 1984 to June 30, 2026
Assets, deposits and loans
Each quarter end, US dollars
Profit by quarter
Net income of each quarter, the last 12
Ratios
Percent. Return on assets and net interest margin are yearly rates.
Branches
36 offices as of June 30, 2026, holding $2.3 billion in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Connecticut | 23 | $1.8B | 79.0% |
| New Jersey | 13 | $479M | 21.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| Church Street Branch | Naugatuck, CT | $325M |
| Oxford Branch | Oxford, CT | $203M |
| Cheshire Branch | Cheshire, CT | $116M |
| Prospect Branch | Prospect, CT | $103M |
| Middlebury Branch | Middlebury, CT | $97.7M |
| New Haven Road Branch | Naugatuck, CT | $96.5M |
| West Main Street Branch | Meriden, CT | $95.6M |
| Southbury Branch | Southbury, CT | $90.9M |
| Hamden Branch | Hamden, CT | $83.2M |
| Ansonia Branch | Ansonia, CT | $82.4M |
Related pages
Questions and answers
How big is Ion Bank?
$2.8 billion in total assets and $2.3 billion in deposits as of June 30, 2026, with assets down 0.1% from a year before. Its loans were $2.0 billion.
How many branches does Ion Bank have?
36 branches in 2 states as of June 30, 2026. The most deposits are in Connecticut ($1.8 billion).
Is Ion Bank profitable?
Yes: it earned $12.8 million from January 1 to June 30, 2026 (down 8.8% from the same months a year before). Its return on assets was 0.93% a year; about 1% is typical.
Who owns Ion Bank?
Ion Bank is owned by Ion Financial MHC Inc, its holding company.
Official public data from the reports every insured bank files each quarter. Profit so far runs from January 1 to the quarter end. Branch deposits are counted once a year, as of June 30. New quarters appear about two months after the quarter ends.