Starbuck is a town in Columbia County, Washington, United States. The population was 119 at the 2020 census. Named for railroad official W. H. Starbuck, the town was originally a junction on the main line of the Oregon Railroad and Navigation Company. The town was platted in 1894, and built its first bank ten years later. In 1886, the railroad completed a line ea…Starbuck is a town in Columbia County, Washington, United States. The population was 119 at the 2020 census. Named for railroad official W. H. Starbuck, the town was originally a junction on the main line of the Oregon Railroad and Navigation Company. The town was platted in 1894, and built its first bank ten years later. In 1886, the railroad completed a line eastward from Starbuck to Pomeroy and Pataha City in Garfield County. The town was officially incorporated on September 18, 1905. In 1910, a large brick school was built.