First Interstate Bank, Polson Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Interstate Bank, Polson Branch Main Office: No Service: Full Service Brick and Mortar Office Location: Main Street Polson, Montana 59860 Lake County View other branches Phone: 406-883-7731 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer092901272YN092901641YN092901683YY102300129YN From: To:
