Quantifying Displacement and Socio-Demographic Change: Asia Minor Refugee Flows in the Eastern Aegean Islands After 1922

The mass arrival of Asia Minor refugees following the events of 1922 profoundly altered the demographic and social structure of Greece, but its effects were geographically uneven. Despite extensive scholarship on refugee settlement at the national level, less attention has been given to its demographic consequences in the Eastern Aegean islands, which received particularly large refugee populations relative to their pre-existing populations. This study examines the scale and demographic effects of the refugee influx in Lesvos, Samos, and Chios, compares them with national patterns, and considers local responses and institutional measures related to integration. The study adopts a quantitative historical-demographic approach, complemented by qualitative archival and historical evidence. It draws primarily on the 1920 and 1928 Population Censuses and the 1923 Refugee Census, conducting comparative analyses at national, prefectural, and selected municipal levels. Population change and density are examined with and without refugees, while age and sex structures, sex ratios, dependency and aging indices, marital status, literacy, and population pyramids are used to assess changes in population composition. Archival and historical sources contextualize local responses and settlement and integration processes. The results show that in 1928 refugees represented 20.2% of the population of Lesvos, 17.0% of Chios, and 9.0% of Samos, compared with 17.2% nationally. Refugee settlement reversed otherwise negative population-growth trends in Lesvos and Chios and substantially increased population density. It also altered age and sex structures, although these effects varied among the three prefectures. Historical evidence indicates that initial tensions between refugees and local populations coexisted with socioeconomic integration and institutional support. Overall, national aggregates alone cannot adequately capture the demographic consequences of the 1922 refugee influx, as the Eastern Aegean islands experienced distinct patterns shaped by the scale, composition, and spatial distribution of refugee settlement.