Main city: Colfax
Timezone: Pacific
Phone type: Landline
Operator: Level 3 Communications

Colfax, the county seat of Whitman County, Washington, United States. The population was 2,805 at the 2010 census. It is situated amidst wheat-covered hills in a valley at the confluence of the north and south forks of the Palouse River. U.S. Route 195, which forms the town's main street, intersects with State Route 26 at the north end of town; in the past, Colfax also lay at the junction of three railway lines. It was named after Schuyler Colfax, the vice president from 1869-73. ^source

North American area code 509 is the telephone area code for the eastern two-thirds of Washington. The western boundary of 509 roughly follows the Cascades. The 509 area includes: Spokane, the Tri-Cities (Richland, Pasco, and Kennewick), Yakima, Walla Walla, Tekoa, and Wenatchee. The 509 code was created in a split from 206 in a flash-cut on January 1, 1957. ^source