Organic detergent powder compositions and single-dose compressed tablets thereof are disclosed. The organic detergent powder composition can comprise one or more of the following ingredients: saponified oils, lyes, binders, fillers, carriers, disintegrants, inert ingredients, salts or water softeners, detergency aids, defoamers or flow agents, enzymes, chelating agents, and fragrances in amounts complying with the United States Department of Agriculture's (USDA's) National Organic Program (NOP) for products labeled as “organic” or “made with organic.” In some aspects, the organic detergent powder composition comprises organic soapberry powder and one or more of a salt, one or more detergency aids, one or more enzymes, and one or more fragrances.