There are 22 FDIC-insured banks headquartered in Maine, holding $49.00B in combined assets and $38.09B in deposits, alongside 48 NCUA-insured credit unions. Every figure below comes from the most recent quarterly call report each institution filed with its regulator. Banks are ranked by total assets, which is the standard measure of institution size and the basis regulators use for peer grouping and for determining which capital rules apply.
Ranked by total assets. Branch counts are domestic offices. Click any institution for eight quarters of financial history, peer benchmarking against similarly sized banks, deposit market share by county, and leadership contacts.
| # | Bank | City | Assets | Deposits | Branches |
|---|---|---|---|---|---|
| 1 | Bangor Savings Bank | Bangor | $7.74B | $5.72B | 72 |
| 2 | The Camden National Bank | Camden | $6.94B | $5.59B | 74 |
| 3 | Northeast Bank | Portland | $5.23B | $3.73B | 9 |
| 4 | Bar Harbor Bank & Trust | Bar Harbor | $4.73B | $3.86B | 62 |
| 5 | First National Bank | Damariscotta | $3.18B | $2.68B | 18 |
| 6 | Maine Community Bank | Portland | $2.98B | $2.30B | 23 |
| 7 | Machias Savings Bank | Machias | $2.67B | $2.27B | 16 |
| 8 | Kennebunk Savings Bank | Kennebunk | $2.17B | $1.68B | 17 |
| 9 | Norway Savings Bank | Norway | $2.16B | $1.57B | 25 |
| 10 | Kennebec Savings Bank | Augusta | $1.87B | $1.41B | 8 |
| 11 | Androscoggin Savings Bank | Lewiston | $1.76B | $1.43B | 10 |
| 12 | Bath Savings Institution | Bath | $1.50B | $1.15B | 13 |
| 13 | Saco & Biddeford Savings Institution | Saco | $1.47B | $1.00B | 7 |
| 14 | Katahdin Trust Company | Patten | $1.16B | $965.9M | 17 |
| 15 | Partners Bank of New England | Sanford | $1.09B | $847.0M | 11 |
| 16 | Skowhegan Savings Bank | Skowhegan | $855.0M | $715.3M | 13 |
| 17 | Franklin Savings Bank | Farmington | $786.9M | $601.1M | 9 |
| 18 | Aroostook County Federal Savings and Loan Association | Caribou | $214.0M | $185.0M | 2 |
| 19 | First Federal Savings and Loan Association of Bath | Bath | $189.1M | $144.4M | 5 |
| 20 | Auburn Savings Bank, FSB | Auburn | $103.2M | $75.9M | 2 |
| 21 | Bar Harbor Savings and Loan Association | Bar Harbor | $103.2M | $73.8M | 1 |
| 22 | Rockland Savings Bank, FSB | Rockland | $90.8M | $68.5M | 1 |
NCUA-insured credit unions headquartered in Maine, ranked by total assets, with member counts from 5300 call report filings.
| # | Credit union | City | Assets | Members |
|---|---|---|---|---|
| 1 | ATLANTIC REGIONAL | South Portland | $1.06B | 49,017 |
| 2 | MAINE SAVINGS | Hampden | $845.7M | 42,588 |
| 3 | MAINE STATE | Augusta | $779.2M | 37,275 |
| 4 | EVERGREEN | Portland | $627.0M | 32,257 |
| 5 | TOWN & COUNTRY | SOUTH PORTLAND | $623.7M | 38,593 |
| 6 | UNIVERSITY | Orono | $526.6M | 31,566 |
| 7 | THE COUNTY | Presque Isle | $501.8M | 31,923 |
| 8 | CUMBERLAND COUNTY | Falmouth | $479.5M | 21,961 |
| 9 | DIRIGO | Lewiston | $472.7M | 28,431 |
| 10 | CPORT | Portland | $425.7M | 36,902 |
| 11 | ACADIA | FORT KENT | $399.4M | 18,163 |
| 12 | ANCORUM | Bath | $395.0M | 30,693 |
| 13 | PEOPLESCHOICE | Biddeford | $361.5M | 20,360 |
| 14 | OXFORD | MEXICO | $360.4M | 20,116 |
| 15 | DOWNEAST | Baileyville | $314.0M | 24,718 |
| 16 | OTIS | Jay | $288.4M | 12,370 |
| 17 | BANGOR | Bangor | $283.9M | 15,672 |
| 18 | MAINE FAMILY | Lewiston | $282.3M | 18,928 |
| 19 | NORSTATE | Madawaska | $277.7M | 14,140 |
| 20 | MIDCOAST | Freeport | $266.8M | 16,007 |
| 21 | TRUCHOICE | PORTLAND | $248.5M | 12,581 |
| 22 | SEABOARD | BUCKSPORT | $238.1M | 13,287 |
| 23 | NEW DIMENSIONS | Waterville | $237.5M | 15,949 |
| 24 | MAINE HIGHLANDS | Dexter | $221.8M | 14,231 |
| 25 | LISBON COMMUNITY | Lisbon | $205.5M | 10,437 |
| 26 | SACO VALLEY | Saco | $190.8M | 9,201 |
| 27 | SEBASTICOOK VALLEY | PITTSFIELD | $186.5M | 12,033 |
| 28 | LINCOLN MAINE | LINCOLN | $147.4M | 6,851 |
| 29 | FRANKLIN-SOMERSET | MADISON | $144.4M | 9,983 |
| 30 | CENTRAL MAINE | Lewiston | $140.0M | 6,473 |
| 31 | K V | Augusta | $134.4M | 10,937 |
| 32 | CONNECTED | AUGUSTA | $129.5M | 7,651 |
| 33 | TRADEMARK | Augusta | $125.0M | 8,389 |
| 34 | CASCO | Gorham | $117.4M | 9,078 |
| 35 | COMMUNITY | Lewiston | $116.9M | 13,601 |
| 36 | BREWER | BREWER | $116.2M | 8,494 |
| 37 | KSW | WATERVILLE | $113.8M | 9,509 |
| 38 | KATAHDIN | Millinocket | $107.8M | 7,855 |
| 39 | WINTHROP AREA | WINTHROP | $103.3M | 7,942 |
| 40 | GARDINER | Gardiner | $93.6M | 5,452 |
| 41 | COAST LINE | South Portland | $89.3M | 3,305 |
| 42 | SABATTUS REGIONAL | Sabattus | $84.8M | 4,672 |
| 43 | EASTMILL | EAST MILLINOCKE | $77.2M | 4,081 |
| 44 | CAPITAL AREA | Augusta | $70.2M | 3,971 |
| 45 | GREAT FALLS REGIONAL | Lewiston | $64.7M | 4,728 |
| 46 | MILESTONES | Lewiston | $35.3M | 1,807 |
| 47 | MAINE SOLUTIONS | SOUTH PORTLAND | $20.6M | 1,183 |
| 48 | MAINE MEDIA | PORTLAND | $6.6M | 888 |
Deposit market share is measured at the county level from the FDIC Summary of Deposits, an annual branch-level filing as of each June 30. County data shows which institutions actually hold balances in a given market and how concentrated that market is — a question state-level totals cannot answer, because a bank can be small statewide and dominant in its home county.
Vault republishes public FDIC and NCUA filings without modification. Bank figures come from quarterly call reports; credit union figures from NCUA 5300 filings; branch and deposit market share from the FDIC Summary of Deposits. Data is free to access and free to cite, with no login or paywall. The same data is available to AI agents through a public Model Context Protocol server at vaultbot.ai/mcp.