The aim of this paper is to identify the relationship between organizational and natural conditions of gminas of Podlaskie Voivodeship and the number and area of organic farms in 2008. The proposed valuation method allowed the separation of gminas and regions of different suitability for the development of organic farming, and the results were confirmed by the actual number of organic farms. Increased interest in organic farming was found in the areas with a very low value of the index of evaluation of agricultural production area, but with a very high proportion of protected areas and the high value of the proposed synthetic index of suitability for organic production.