HomeStreet Bank, Sunnyside Branch Basic Info Reviews Routing Numbers Map & Direction Name: HomeStreet Bank, Sunnyside Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1820 Yakima Valley Highway, Suite B Sunnyside, Washington 98944 Yakima County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer122243460YY123206930YN322278183YY325084426YY From: To: