The city of Sandnes is located about 15 kilometres south of Stavanger, and these two cities have expanded so as to form a conurbation. The Gandsfjorden ends in the centre of Sandnes. Sandnes is situated centrally in the Jæren region. Norway´s largest shopping centre, Kvadrat, is also situated in Sandnes.
The landscape of the Sandnes and Stavanger region is quite flat. On the long west coast there are several beaches and further inland the land is raised to form low plains with some small peaks rising up to 400 to 500 metres above sea level.