Old National Bank, Brookfield Branch Basic Info Reviews Routing Numbers Map & Direction Name: Old National Bank, Brookfield Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 18200 West Capitol Drive Brookfield, Wisconsin 53045 Waukesha County View other branches Phone: 262-252-2700 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072413638YN072414271YN086300012YY275971087YY From: To: