Roquebrune-sur-Argens is a rural municipality, because it is one of the low or very low density municipalities, within the meaning of the INSEE municipal density grid. It belongs to the urban unit of Roquebrune-sur-Argens, a monocommunal urban unit of 14,251 inhabitants in 2017, constituting an isolated town.
Furthermore, the commune is part of the Fréjus catchment area, of which it is a commune in the crown. This area, which brings together 6 municipalities, is categorized into areas of 50,000 to less than 200,000 inhabitants.
The municipality, bordered by the Mediterranean Sea, is also a coastal municipality within the meaning of the law of January 3, 1986, known as the coastal law. Specific urban planning provisions therefore apply there in order to preserve natural spaces, sites, landscapes and the ecological balance of the coastline, such as for example the principle of non-construction, outside urbanized spaces, on the strip coastline of 100 meters, or more if the local urban plan provides for it.