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 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.