One of the most significant factors influencing the co-spatialities regimes of post-urban communities is the development of new urban media. On the one hand, new urban media symbolizes the complex transition to new post-urban communities and new spatial regimes of their existence; on the other hand, they are the basic element of the newly emerging policies of co-spatialities. From the phenomenological point of view, post-politics is treated as the growing dominance of flat communicative ontologies in post-urban spaces, characterized by the disintegration of the traditional modern methods of communication. A post-urban locality is defined as a medial co-being, centering the next here-and-now cartography of imagination, which can be considered as a post-political action. The de-territorialization of post-urban communities takes place through the “smoothing” of urban spaces, turning them into mostly “smooth spaces” with the help of the new media. Specific local geo-cultures, a new, “rhizomatic” type whose development is based on the post-political transcription of socialization and medialization of urban spaces, are formed. The affectivity of post-urban co-spatialities is manifested in the gradual increase in the number of new specific urban actors that herald the slipping away of traditional state and municipal policies. The post-political can be considered as a sphere of geo-semiotic violence aimed at the over-coding of co-spatial situations. The mapping of co-spatialities reproduces the Earth as a total chora of post-political ontology. The post-city nomos constantly forms a communicative periphery with the missing center, where any message can signal the transactions of imagination aimed at the devaluation of “center–periphery” systems.