This article tries to establish the scope of post-memory as a fundamental element for the construction of citizenship in the municipality of Soacha. This is done by identifying the characteristics of the population in the light of the massive arrival of displaced people caused by the internal armed conflict and of the implications derived from this phenomenon in the construction of identity and society. The study is presented as an innovative analytical exercise in the construction of citizenship in Colombia, given the fact that postmemory is a revitalizing element of social structures, where ravished or repressed identities are involved. These can generate scenarios of reconciliation and forgiveness through conducts of peaceful reconstruction of memory, thus allowing building communities of more integral, responsible citizens, who are committed to the peace and tranquility of the country. This study is based on a qualitative methodology, and it uses research tools such as the analysis and the documentary review, along with other instruments proper to heuristics.