This paper presents the results of the estimations of a quality of life (QoL) index focusing on three dimensions: individual factors, urban factors, and civil society. The study was mainly based on information collected through a survey applied in three districts of Lima: La Victoria, Los Olivos and Villa El Salvador. These districts are relatively similar in terms of income, although Villa El Salvador has a larger percentage of poor households. The results show that various indicators have different impacts on QoL. Two findings stand out. First, variables related to participation in civil society are statistically significant in all specifications used. Second, in La Victoria and Los Olivos, QoL is determined largely by indicators in the individual sphere, while the civil society sphere is more important in Villa El Salvador. These results are consistent with the collective action tradition of the Villa El Salvador district and with the market pattern of growth of Los Olivos.