Kallerstad is a city district in Linköping, Sweden, with mostly industrial, commercial and office areas. The district includes Kallerstad, Mörtlösa and Torvinge industrial areas. In 2009, fewer than a hundred people lived in the area. The district is east of Tornby, on the north side of the rail line, and crossed by Kallerstad trail, which is part of the city's outer ring road. About 60 companies have offices in the area. These include Tekniska Verken, Schenker, Urban Partners, Veolia Transport AB and CLM Environmental Engineering.