Usk is an unincorporated community in Pend Oreille County, Washington, United States.
Usk is located along the Pend Oreille River 2 miles (3.2 km) southeast of Cusick.
Usk has a post office with ZIP code 99180.
[2] It is near the Kalispel Indian Reservation.
This Pend Oreille County, Washington state location article is a stub.