Merrimack County Savings Bank, Bow Branch Basic Info Reviews Routing Numbers Map & Direction Name: Merrimack County Savings Bank, Bow Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 503 South Street Bow, New Hampshire 03304 Merrimack County View other branches Phone: 603-225-2793 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer011401928YY211470225YY From: To: