Union State Bank of Hazen, Union State Bank Basic Info Reviews Routing Numbers Map & Direction Name: Union State Bank of Hazen, Union State Bank Main Office: No Service: Limited Service Facility Office Location: 1221 Main Street W Hazen, North Dakota 58545 Mercer County View other branches Phone: 701-748-3261 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer091302788YY091311135YN From: To: