Old National Bank, Mount Horeb Branch Basic Info Reviews Routing Numbers Map & Direction Name: Old National Bank, Mount Horeb Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1889 Business 18 And 151 East Mount Horeb, Wisconsin 53572 Dane County View other branches Phone: 608-437-3011 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072413638YN072414271YN086300012YY275971087YY From: To: