American State Bank, American State Bank Basic Info Reviews Routing Numbers Map & Direction Name: American State Bank, American State Bank Main Office: Yes Service: Full Service Brick and Mortar Office Location: 525 North Main Street Sioux Center, Iowa 51250 Sioux County View other branches Phone: 712-722-4846 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer073917641YY073918653YN From: To:
