Bank of the Southwest, Farmington Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank of the Southwest, Farmington Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 320 West Main Street Farmington, New Mexico 87401 San Juan County View other branches Phone: 505-325-1971 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer111003585YN112206297YY From: To: