Development and progress are ideals that always different countries have pursued. Everybody
welcomes a developed country with people free from development obstacles. Indeed, realization of such a goal
requires developmental planning in national and local scales taking into account the population growth rate,
economical, social, cultural, and political problems, and generally, imbalances and dualities from which the whole
country suffers. Hence, it seems inevitably and vitally necessary to pay attention to regional planning in Iran, and,
more rapid growth and development of the country can be achieved with the aid of such planning and through
growth and flourishing of different regions commensurate with their capacities and capabilities. The current paper
is attempted to comparatively assess the performance and efficiency of Iranian provinces in terms of development
level using Taxonomy and Morris models. It also aims at analyzing statuses of Iranian in terms of inequality extent
in enjoying development benefits using standard score method. The research results are suggestive of the fact that
Sistan and Baluchistan Province assumes the lowest rank (30th among the 30 provinces) in all three methods under
study. Due to presence of some obstacles and lack of proper grounds, it is an inevitable necessity to rethink and make
fundamental planning in this respect.