Elk is an unincorporated rural community in northern Spokane County, Washington, United States.There is also a VFW, Volunteer Fire Station, and other amenities. During the summer Elk holds Pioneer Days, when it celebrates Fathers' Day and the community's rich history. The community gathers, usually at Elk Park, to celebrate with various vendors and festivities often including a car show and parade.The community was named after the elk seen in the area. A post office in Elk has been in operation since 1892. The current post office sits on the site of the Elk Hotel, which was destroyed by fire in the early 70s.