Modern cities face a number of challenges, among which growing urbanization over the years, environmental pollution, climate change or the problem of efficient resource management play a key role. In this context, the smart city concept, based on modern technologies and innovative solutions, is becoming a leading element of development strategies. Polish voivodeship cities, as regional centres, are increasingly implementing smart city solutions to improve the quality of life of residents, increase the efficiency of government operations and promote sustainable development. The purpose of this article is to determine the extent to which the smart city idea is incorporated into the development strategies of Polish voivodeship cities, and to identify the areas in which these solutions are of greatest importance. The analysis covers six dimensions of the smart city: economy, mobility, environment, people, quality of life and governance. The study consisted of two stages: a literature analysis and a review of cities' strategic documents using thematic modelling tools.