FDIC-insured bank
First Seacoast Bank — Dover, NH
Bank headquartered in Dover, New Hampshire, part of FIRST SEACOAST BCORP INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 633 Central Ave Dover, NH 03820 |
| County | Strafford |
| Metro area | Boston-Cambridge-Newton, MA-NH |
| Website | www.firstseacoastbank.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 29744 |
| Federal Reserve RSSD ID | 119872 |
| Status | Active |
| Charter class | SB (OCC) |
| Holding company | FIRST SEACOAST BCORP INC |
| Domestic offices | 5 |
| Financials as of | June 30, 2026 |
How to find your First Seacoast Bank routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.firstseacoastbank.com.
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Offices nearest to headquarters
| First Seacoast Bank main office Dover, NH |
633 Central Ave, 03820 |
| Durham Shopping Plaza Branch Durham, NH |
7 Mill Rd, 03824 |
| Rt 125 Barrington Branch Barrington, NH |
6 Eastern Ave, 03825 |
| 17 Wakefield Street Branch Rochester, NH |
17 Wakefield St, 03867 |
| 1 Market Square Branch Portsmouth, NH |
1650 Woodbury Ave, 03801 |
Where First Seacoast Bank has offices
Cities with the most First Seacoast Bank offices
Largest banks headquartered elsewhere in New Hampshire
| Mascoma Bank Lebanon | $3.03 billion |
| Bank of New Hampshire Laconia | $2.80 billion |
| Bank of New England Salem | $1.82 billion |
| Meredith Village Savings Bank Meredith | $1.64 billion |
| Merrimack County Savings Bank Concord | $1.41 billion |
| Franklin Savings Bank Franklin | $931.39 million |
| Savings Bank of Walpole Walpole | $857.94 million |
| Primary Bank Bedford | $769.55 million |
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