Granollers is a bustling business centre, and many industries are located there. However, in the southern portion of the municipality, the Palou area retains the agricultural characteristics of the past.
Granollers forms a conurbation with Canovelles, Les Franqueses del Vallès and the neighbourhood of La Torreta in La Roca del Vallès. The city is crossed by the Congost river, a tributary of the Besòs river. It is considered to be situated in the second crown of Barcelona metropolitan area. It is around 25 km north-east of the centre of Barcelona.