Typology As of 1 January 2024, Castillon is categorised as a rural commune with a very dispersed population, according to the new 7-level municipal density grid defined by INSEE in 2022. It is located outside the urban unit and outside the attraction of cities.
Land use The land use of the municipality, as shown by the European biophysical land cover database (CLC), is marked by the importance of agricultural land (99.6% in 2018), a proportion identical to that of 1990 (99.6%). The detailed distribution in 2018 is as follows: meadows (48.3%), arable land (31.2%), heterogeneous agricultural areas (20%), forests (0.3%), mines, landfills and construction sites (0.1%). The evolution of the land use of the commune and its infrastructures can be observed on the various cartographic representations of the territory: the
Cassini map (18th century), the (1820-1866) and the
IGN maps or aerial photos for the current period (1950 to today). ==Population==