Bank of the Sierra, West Olive Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank of the Sierra, West Olive Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1498 West Olive Avenue Porterville, California 93257 Tulare County View other branches Phone: 559-782-4500 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121137027YY122242526YN122242827YN From: To: