Crowdsourcing is a new approach and concept increasingly used in companies and organizations. Thanks to the outsourcing of tasks entrusted to the wider community, principals can obtain more detailed results and satisfactory results of outsourced activities. This idea has been considered so far in business terms, hardly anyone referred it to processes such as cities. The author presents in the article the idea of Smart City, the area of knowledge management and the use of Crowdsourcing processes for the freeing of communication channels between decision makers and residents. Crowdsourcing has been recognized in the field of public aspects, turning to the wider society. The author indicates an important gap in communication between the city's decision-makers and the inhabitants. In many agglomerations, city authorities do not have knowledge about the needs of residents, whereas the information cycle is disturbed. The main goal of the article is to build a flowchart/model of information flow using crowdsourcing and to discuss its place in intra-city communication.