Urban shrinkage has become a common feature for a growing number of European cities and urban regions. Cities in Europe have lost populations during the previous few decades, many of them in the post-communist countries. A similar phenomenon has been observed in smaller units: municipalities and villages. Shrinking towns/municipalities/villages grapple with insufficiently used housing infrastructure, a decrease in labor force, investment and in the number of jobs. This analysis examines the socio-spatial factors present in municipalities in the north-east of Poland, which are expected to experience the greatest population decrease by 2030. The study focused mainly on determinants with the greatest impact on the good life standards. It also sought to answer why the population growth forecasts for these units are so unpromising. The findings have shown that the majority of determinants adopted in the conceptual model describing the good life standards are below the reference values. The applied taxonomic measure of good life standards (TMGL) method allowed for identifying five municipality clusters representing “different speeds” at which these forecasts are fulfilled. Two clusters have dominant determinants in five criteria and three clusters, in two criteria adopted in the conceptual model. The findings indicate that approx. 35% of the municipalities under analysis have a chance for stabilization of the population size, provided local stakeholders take some targeted actions.