Colfax is located in Whitman County. About 2,782 people live here (as of 2020). Between 2010 and 2020, the population declined from 2,805 to 2,782. The region is at 601 meters above sea level. The area covers about 9.7 square kilometers. There are about 271 streets in Colfax. The region was founded in 1870. The postal codes are 99111. The dialing code is 509. Colfax is city in and county seat of Whitman County, Washington, United States. Among other things, Colfax has public Transport, restaurants, attractions and banks. More information at
www.colfaxwa.org.