Table 1 lists the properties of the members of the young clusters Chamaeleon I observed by the Gaia-ESO Survey. The Table includes the common name to identify each star in the Gaia-ESO catalogue, the coordinates, the parameters used for the membership classification, the spectrograph (GIRAFFE or UVES) used in the observation, and if the star has been previously classified as member of this cluster. Table 2 lists the properties of the stars used for the structural analysis discussed in the paper. The Table includes the coordinates, the effective temperatures, the luminosities, if the parameters of the stars are retrieved from the literature or the Gaia-ESO catalogue and the masses.(2 data files).