Social and economic transformations on a local scale and the strengthening of the role of local government increase the demand for broadly understood statistical information on gminas and powiats. Thinking about local authorities and residents of Mazowieckie Voivodship, the Statistical Office in Warszawa has prepared the eighteenth edition of the study entitled "Statistics of gminas and powiats of Mazowieckie Voivodship in 2015 and 2022". It is a supplement to the publications of the Statistics Poland and the Office describing the diversity of selected elements of the socio-economic potential of gminas and powiats in Mazowieckie Voivodship. The technical solutions used enable both quick access to data and the presentation of indicators in a form tailored to the individual needs of the user. We hope that the study will be useful for you in your current work and will become a pretext for getting to know our other products.