The paper examines the socio-spatial differentiation in three medium-sized towns in Pomerania, Poland: Lębork, Szczecinek, and Wałcz. It focuses on demographic changes, population movement, and spatial segregation, particularly among the unemployed and impoverished. The study analyzes the socio-spatial patterns that have emerged over the past two decades, using a model of medium-sized towns in the region. The research highlights the impact of historical and socio-economic factors on urban development, including the influence of political and economic changes during the post-war period and the transition to a market economy. The study also explores the spatial distribution of poverty, wealth, and social problems, as well as the quality of life in these towns. The findings reveal a trend towards spatial segregation, with affluent areas concentrated in city centers and peripheral areas characterized by poverty and social issues. The research also discusses the role of urban planning, housing quality, and infrastructure in shaping the socio-spatial structure of the cities. The study concludes that the socio-spatial differentiation in these towns reflects broader trends in post-socialist urban development, with a clear distinction between central and peripheral areas. The analysis is based on a combination of quantitative and qualitative methods, including surveys, statistical analysis, and spatial classification techniques. The results indicate that the socio-spatial patterns in these towns are influenced by a range of factors, including economic development, population movement, and the legacy of past socio-political structures. The study provides a framework for understanding the complex dynamics of socio-spatial differentiation in medium-sized cities in Pomerania.The paper examines the socio-spatial differentiation in three medium-sized towns in Pomerania, Poland: Lębork, Szczecinek, and Wałcz. It focuses on demographic changes, population movement, and spatial segregation, particularly among the unemployed and impoverished. The study analyzes the socio-spatial patterns that have emerged over the past two decades, using a model of medium-sized towns in the region. The research highlights the impact of historical and socio-economic factors on urban development, including the influence of political and economic changes during the post-war period and the transition to a market economy. The study also explores the spatial distribution of poverty, wealth, and social problems, as well as the quality of life in these towns. The findings reveal a trend towards spatial segregation, with affluent areas concentrated in city centers and peripheral areas characterized by poverty and social issues. The research also discusses the role of urban planning, housing quality, and infrastructure in shaping the socio-spatial structure of the cities. The study concludes that the socio-spatial differentiation in these towns reflects broader trends in post-socialist urban development, with a clear distinction between central and peripheral areas. The analysis is based on a combination of quantitative and qualitative methods, including surveys, statistical analysis, and spatial classification techniques. The results indicate that the socio-spatial patterns in these towns are influenced by a range of factors, including economic development, population movement, and the legacy of past socio-political structures. The study provides a framework for understanding the complex dynamics of socio-spatial differentiation in medium-sized cities in Pomerania.