Kolberg (/ˈkoʊlbərɡ/COAL-bərg)[2] is an unincorporated community in the town of Brussels, in southern Door County, Wisconsin.[1] County Road D connects the community to Forestville and to Brussels.[3] Kolberg came to be in 1893 when Conrad Guth built his store and creamery on the corner where the present creamery now stands. A post office was opened in 1895 by Conrad Guth and closed in 1907, originally in the first store building but moved across the street when the new store was built.