MountainOne Bank
North Adams, MA · Owner: Mountainone Financial MHC
$1.1B
total assets, June 30, 2026
$1.1B
total assets, June 30, 2026
MountainOne Bank is a state savings bank based in North Adams, MA, owned by Mountainone Financial MHC. As of June 30, 2026 it held $1.1 billion in assets and $774.3 million in deposits; assets were up 5.5% from a year before. It has 6 branches.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$1.1B
+5.5% in a year · +1.3% in a quarter
Deposits
$774M
-0.3% in a year · -1.9% in a quarter
Loans
$837M
+7.9% in a year · +3.0% in a quarter
Profit so far
$6.5M
Jan 1 to Jun 30, 2026 · +19.0% in a year
Capital ratio
14.74%
+0.26 pts in a year
Return on assets
1.22%
+0.13 pts in a year
Facts
- Type
- State savings bank
- Head office
- 93 Main St, North Adams, MA, 01247
- County
- Berkshire
- Holding company
- Mountainone Financial MHC
- Established
- Jan 1, 1848
- Employees
- 186
- Branches
- 6
- Website
- www.mountainone.com
- Id
- b90253
Quarter by quarter
September 30, 1985 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
6 offices as of June 30, 2026, holding $774.3 million in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Massachusetts | 6 | $774M | 100.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| Mountainone Bank (main office) | North Adams, MA | $312M |
| Williamstown Savings Bank Branch | Williamstown, MA | $146M |
| Quincy Branch | Quincy, MA | $109M |
| South Coastal Main Off | Rockland, MA | $102M |
| Pittsfield Branch | Pittsfield, MA | $57.8M |
| Scituate Branch | Scituate, MA | $47.6M |
Related pages
Questions and answers
How big is MountainOne Bank?
$1.1 billion in total assets and $774.3 million in deposits as of June 30, 2026, with assets up 5.5% from a year before. Its loans were $836.8 million.
How many branches does MountainOne Bank have?
6 branches in Massachusetts as of June 30, 2026.
Is MountainOne Bank profitable?
Yes: it earned $6.49 million from January 1 to June 30, 2026 (up 19.0% from the same months a year before). Its return on assets was 1.22% a year; about 1% is typical.
Who owns MountainOne Bank?
MountainOne Bank is owned by Mountainone Financial MHC, 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.