Over the last few years, numerous new concepts of area delimitation generalizing and giving new guidelines for further analyses of economic, social, environmental and spatial development have been enforced. A functional region, as a new concept of delimitation, has appeared in literature for quite some time now. In the contemporary era, the concept of functional urban area (FUA) is gaining in importance. In this graduation thesis, functional urban area, modelled by Cetin (2018) after the OECD method for the area of Slovenia between 2000 and 2015, were taken. On the level of the regional centres after SPRS (2004), numerous social-economic and spatial parameters of regional centres, FUAs were analysed. The official statistic data, collected on the level of municipalities (SKTE 5), served as sources for our analysis. Further analysis is done in two parts. The first part consists of the statistical data analysis after FUAs over the years; the second part thematically discusses the analysis of labour commuting routes in FUAs and over the years respectively. An analysis and an evaluation of internal changes of the analysed parameters in FUAs of the regional centres of Slovenia is presented for the period between 2000 and 2015. The analysis is made completely with the programme Excel, which also helps present the results graphically. The results are presented in two different separated chapters: the results, bound up to the change of the social-economic parameters, and the results, bound up directly to the change of labour commuting on the level of regional centres of Slovenia.