Schönaich is a municipality located in the district of Böblingen within the state of Baden-Württemberg, Germany. It is positioned in the southwestern part of the region, situated approximately 5 km southeast of the city of Böblingen and 16 km southwest of Stuttgart.
The municipality serves as a residential area within the broader metropolitan influence of the Stuttgart region. Its geographical location places it in close proximity to these major urban centers while maintaining its status as an independent administrative entity within the district of Böblingen.