Wilmington Savings Fund Society, FSB, Trolley Square Branch Basic Info Reviews Routing Numbers Map & Direction Name: Wilmington Savings Fund Society, FSB, Trolley Square Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 9a Trolley Square Wilmington, Delaware 19806 New Castle County View other branches Phone: 302-652-4149 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031100102YY031100636YN031100924YN031918844YN231375436YN From: To: