Since 1890, we have served the Seacoast with convenience, courtesy, and a promise that you are our first priority. That’s why here you’ll find products and services that are effective and affordable. Technology to make your life easier. And a commitment to the communities we all share.
First Seacoast Bank is proud to have five locations across the Seacoast region, in Dover, Durham, Barrington, Portsmouth, and Rochester.
Headquartered in Dover, New Hampshire, First Seacoast Bank has served residents of the Seacoast area of New Hampshire since 1890.
We're fortunate to have guidance from an esteemed group of officers and board members who share their insight and experience every day.
Location is everything. If your address has changed, or will be changing, please let us know by filling out this simple form.
Read our annual publication of news, philanthropy and financial information for customers and the public.
We'd love to hear from you. Click here to send an email, find our mailing address, fax number, the number to report a lost or stolen debit card, and more.
FSB’s routing number is 211470018. Also known as the ABA number, this is used to process electronic payments, direct deposits, and wire transfers.