Old National Bank, Monroe Branch Basic Info Reviews Routing Numbers Map & Direction Name: Old National Bank, Monroe Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1712 12th St Monroe, Wisconsin 53566 Green County View other branches Phone: 608-325-7161 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072413638YN072414271YN086300012YY275971087YY From: To: