In 1830 farmers constituted the majority of the Greek population. Part of these was small landowners or small livestock farmers, while the largest part of them was landless. The large farms were few. In the 1920s the entrance of 1.5 million refugees from Asia Minor and the departure of 600 thousands Muslims (with the exchange of populations) had as a result the dissolution of the manors, which were in the hands of the Turks. In the year 1950 due to the German occupation (1941-1944) and civil war (1946-1949) the agriculture returned in the level of the 1930s. In 2000, almost twenty years from the Greece’s accession to the EU (in 1981), the massive subsidies and the clear agricultural policy, led to disruption of productivity of rural sector. The estimates for 2030 are formulated both from the changes that have occurred over time and from the consequences of the accession of Greece in the support mechanism (2010), after the silent bankruptcy of the country. The purpose of this paper is to reflect the changes in the social structure of agriculture from independence (1830) until today and to make estimations for 2030. The Greek case differs from that of European countries, as it has not developed the institution of manor and similar as extensive feudal relations. It also differs from the countries of the Balkans as it maintained the institution of the small private property. The methodology of this study uses the historical approach and is based on evaluation of secondary sources, but also in primary research by the author for the economic efficiency of agriculture. It uses also comparative analysis interpreting the social relations that existed in Greece and in the rest of the Balkans. The paper is structured in four parts. The first refers to the history of the research objective. In the second and the third, economic and social differentiations are presented. In the fourth the above findings are evaluated.