Wilmington Savings Fund Society, FSB, Newtown Square Branch Basic Info Reviews Routing Numbers Map & Direction Name: Wilmington Savings Fund Society, FSB, Newtown Square Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3590 West Chester Pike Newtown Square, Pennsylvania 19073 Delaware County View other branches Phone: 610-359-6941 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031100102YY031100636YN031100924YN031918844YN231375436YN From: To: