Kalk Post is an underground station on the Cologne Stadtbahn lines 1 and 9, located in Cologne. The station lies at the intersection of Kalker Hauptstraße and Trimbornstraße in the district of Kalk. Köln-Trimbornstraße station is located some 200m to the south. The station was opened in 1980 and consists of a mezzanine and two side platforms with two rail tracks.