Coldwell Banker San Juan Island, Inc. Broker Steve Buck Return to Directory Business Name: Coldwell Banker San Juan Island, Inc. Broker Steve Buck Business Genre: Real Estate Broker Business Website Address: https://www.sanjuanislands.com Business Phone Number: (360) 472-0895 ext.2410 Business Tags: Main Business Address: 105 Spring Street Friday Harbor WA ZIP Code: 98250