Every society, based on its present situation, has defined social health, i.e.healthy society, differently. The aim of present study is to reach to such definition and then to compose an Iranian Social Health Index (ISHI).To do so, a Delphi research was carried out which resulted in 17 criteria as the components of social health: (1) lack of poverty, (2) lack of violence, (3) controlled growth of population, (4) lack of gender discrimination, (5) equality of people in the eyes of the law, (6) lack of violation of human rights and other international conventions related to the rights of humankind, (7) obligatory and free-of-charge education up to 8th grade and then non-obligatory but free-of-charge, (8) access to health care for all people, (9) full of security, (10) full of freedom of thought, (11) satisfaction of people of their life, (12) full coveraf insurance, (13) redistributive justice in incomes, (14) lack of unemployment, (15) lack of ethnic, racial, and geographic discriminations, (16) democratically elected and (17) democratically supervised government.To examine this consensus-based definition empirically (construct validity) and achieving to a combining index for social health, the existing data of six indexes such as natural growth rate (NGR), murder, unemployment, insurance coverage, and literacy from30 provinces in 2008 were analyzed by explanatory- factor analysis and as a result two indicators of less social capability (e.g.population growth, poverty, insurance coverage and literacy) and social problems (e.g. unemployment and murder) were obtained that can explain 68.3 percent of Iran's social health construct variance.