Stuttgart Region is an urban agglomeration at the heart of the Stuttgart Metropolitan Region. It consists of the city of Stuttgart and the surrounding districts of Ludwigsburg, Esslingen, Böblingen, Rems-Murr and Göppingen. About 2.7 million inhabitants live in that area (3,700 km2). In fact, with 708 people per square kilometre, the Stuttgart Region is one of the most densely populated areas in Germany. Stuttgart Region is governed by a directly elected parliament.

The Stuttgart S-Bahn is a suburban railway system (S-Bahn) serving the Stuttgart Region, an urban agglomeration of around 2.7 million people, consisting of the city of Stuttgart and the adjacent districts of Esslingen, Böblingen, Ludwigsburg and Rems-Murr-Kreis.