In my bachelor thesis I analysed whether the developed sports infrastructure has a positive impact on the physical fitness of children between 6 and 14 years of age. Sports infrastructure includes facilities intended for various sports activities , while physical fitness of children demonstrates the physical performance and physical fitness of children. The results are obtained on the basis of a so called ˝sports card˝ and are collected annually at primary and secundary schools. The theoretical part explains and defines the basic concepts related to the municipality, sports infrastructure and average physical fitness of children for each individual municipality. Information on sports infrastructure was obtained from the Ministry of Education, Science and Sports, while the information on average physical fitness of children was gathered fron National Institute of Public Health. All 212 Slovenian municipalities have been included in the analysis. I studied the correlation between sports infrastructure and physical fitness of children throughout the municipalities. In the analysis I incorporated one dependt variable (the average physical fitness of children) and two independent variables (the number of sports clubs per 1000 inhabitants and the number of sports facilities per 1000 inhabitants). The impact of sports infrastructure on the physical fitness of children was analysed using the linear regression method. The results of the aforementioned method have datermined the correlation between the variables is weak therefore we can conclude that sports infrastructure at the municipal level has no particular impact on the physical fitness of children. The correlation between the two independent and dependent variables ia also weak, which means that the number of sports clubs and the number of facilities per 1000 inhabitants does not affect the physical performance and fitness of children in each municipality.