Ione is a town in Pend Oreille County, Washington, United States. The population was 428 at the 2020 census. Ione was officially incorporated on January 3, 1910.
The timber industry played a major role in Ione's history. In the early 1900's, Frederick A. Blackwell's Panhandle Lumber Company opened the inland northwest's first all-electric sawmill in Ione. The timber-based economy persisted for nearly 100 years in Ione, lasting until 1995 when the Vaagen Brothers' sawmill, the last major sawmill in the county, closed down. Cement Mountain, with its peak roughly a mile immediately north of town, rises to 3,003 feet. Molybdenite Mountain, across the river from Ione, rises even higher to 6,788 feet.
According to the United States Census Bureau, the town has a total area of , of which, is land and is water.
Demographics
thumb|Town of Ione, Washington, looking south