Kellogg is a city in the Silver Valley of Shoshone County, Idaho, United States, in the Idaho Panhandle region. The city lies near the Coeur d'Alene National Forest and about 36 miles (58 km) east-southeast of Coeur d'Alene along Interstate 90. As of the 2010 United States Census, the city had a total population of 2,120, down by a third from its population in 1980.