More than 513,000 people live and work in the District of Esslingen on a space of 641.54 km² in 44 cities and communities. In addition to the people, there are 6 different landscape parts which characterize the history of the district: the Neckar valley, the Alp foreland, the Swabian Alb, the Schurwald, Schönbuch and the Filder. The largest width: 40 km air-line distance of NW - SE (Oberaichen - Reussenstein) Largest north - south distance: 28 km air-line distance (Aichelberg - Burrenhof) (Source: http://www.landkreis-esslingen.de/).