Abstract
Developing inequality is a phenomenon that is always present in every process of development and varies between one region and another. Developing regions in Pegunungan Arfak regency still rely on the agricultural sector as a driving force of the development in their territory to reduce the disparity. This study aims to assess the potential of the agricultural leading sector at the Pegunungan Arfak regency, the level of the regional development disparity, as well as the role and the relevance of the leading sector of agriculture in regional development. The result based on LQ method, it showed that the leading sector of agriculture in Pegunungan Arfak regency consists of food crops sub sector, horticulture sub sector and plantation sub sector. At the same time, the result further suggested that the level of the development disparity, horizontally (among regions) showed high values refer to the Williamson Index about 0.86, as well as the level of the development imbalance, vertically (among community group's income) using the Gini Index had a value about 0.43. Agricultural leading sector is one of the factors that can be spurred on into a prime mover of the development in order to reduce the inequality of regional development.