The notable growth experienced by organic agriculture in Spain, has not been accompanied by a similar development in the consumption of organic foods, with most of the organic agricultural output being exported. This study focuses in analyzing Spanish consumer's attitude versus organic foods, in order to identify the factors that influence the demand. For this purpose, 130 surveys are conducted among consumers in a medium-sized city in Spain and processed using different statistical analysis, determining the level of knowledge about these products, consumer's shopping habits, and criteria, which support or dissuade the consumption of these products.