Mica, Washington
Mica is an unincorporated community in Spokane County, Washington, United States. Mica is located along Washington State Route 27 southeast of downtown Spokane. Mica had a post office with ZIP code 99023.History
A post office called Mica was established in 1887, and remained in operation until it was discontinued in 1975. The community was named for deposits of mica.
