Colfax is a city located in the state of Washington in the United States. It serves as the county seat of Whitman County and is situated within a valley characterized by wheat-covered hills at the confluence of the north and south forks of the Palouse River.
The city was named after Schuyler Colfax, who served as the Vice President of the United States from 1869 to 1873. As of the 2020 census, Colfax had a population of 2,782, making it the second-largest city in Whitman County behind Pullman.
The town's main street is formed by U.S. Route 195, which intersects with State Route 26 at the northern end of the city. Historically, Colfax was also situated at the junction of three major railway lines and currently belongs to the Pullman–Moscow combined statistical area.