About This Place
Danville is an unincorporated community in Ferry County, Washington, United States. Danville is located on Washington State Route 21 near the Canadian border, 26 miles (42 km) north-northeast of Republic. Danville has a post office with ZIP code 99121. The population at the 2010 census was 34.
Danville was founded in 1899 and took its name from the Danville Mining Company.