Thailand provides a particularly productive case for examining how economic development, demographic change, migration, urbanization and unequal access to resources interact to reshape social relations. This manuscript develops a sociological analysis of contemporary Thailand using secondary evidence from national statistics, international development reports and peer-reviewed scholarship. Rather than presenting new survey or interview data, the article synthesizes existing evidence to explain how structural inequalities are reproduced across class, space, generation and migration status. The analysis identifies five interconnected processes: persistent socioeconomic inequality; Bangkok-centered spatial and institutional concentration; demographic ageing and low fertility; internal and cross-border migration; and the institutional production of social inclusion and exclusion. Recent evidence indicates that Thailand has achieved substantial long-term reductions in poverty, but inequality remains significant, with occupational and educational differences, spatial disparities and concentration of wealth continuing to shape life chances. At the same time, demographic ageing and very low fertility are altering household structures, labour markets and intergenerational relations. Internal migration remains substantial, while migrants from neighbouring countries occupy important but vulnerable positions in sectors such as agriculture, manufacturing, construction and services. The article argues that Thai social transformation should not be understood simply as a linear transition from a rural to an urban or traditional to a modern society. Instead, Thailand is characterized by layered modernities in which older hierarchies coexist with new market, educational, bureaucratic and transnational forms of stratification. The paper concludes by proposing a sociological framework that connects structure, institutions and everyday social practices, and identifies implications for future research on inequality, migration, ageing and social cohesion in Thailand.
Keywords:Thailand; sociology; social inequality; social stratification; migration; urbanization; ageing; social change; labour; social exclusion