| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Katahdin Trust Company | Bank | 12 | $531.3M | 22.96% |
| 2 | The County Federal Credit Union | Credit union | 6 | $312.9M* | 13.52% |
| 3 | Machias Savings Bank | Bank | 3 | $279.5M | 12.08% |
| 4 | Acadia Federal Credit Union | Credit union | 7 | $251.0M* | 10.85% |
| 5 | Norstate Federal Credit Union | Credit union | 6 | $244.5M* | 10.57% |
| 6 | TD Bank, National Association | Bank | 1 | $203.7M | 8.80% |
| 7 | Aroostook County Federal Savings and Loan Association | Bank | 2 | $185.0M | 7.99% |
| 8 | KeyBank National Association | Bank | 4 | $181.2M | 7.83% |
| 9 | Katahdin Federal Credit Union | Credit union | 1 | $46.3M* | 2.00% |
| 10 | University Credit Union | Credit union | 1 | $40.9M* | 1.77% |
| 1 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $2.31B | 11 | 44 | Katahdin Trust Company | 23.0% | 1,298 |
| 2025 | $2.26B | 11 | 43 | Katahdin Trust Company | 23.2% | 1,294 |
| 2024 | $2.14B | 11 | 46 | Katahdin Trust Company | 22.7% | 1,280 |
| 2023 | $2.26B | 11 | 46 | Katahdin Trust Company | 22.6% | 1,273 |
| 2022 | $2.22B | 11 | 45 | Katahdin Trust Company | 22.8% | 1,273 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.