The water apple commodity is one of the plants that still has an important role in the natioanal economy to be cultivated. Water apple farmers make their farming a side job to increase farmer household income. This study aims to determine the sources of cashew farming income and the amount of contribution of cashew yard farming to household income in Tempuran Village, Demak Subdistrict, Demak Regency. The selection of research locations was done purposively. Sampling uses a simple random sampling technique of 29 farmers. The result showed that the income of water apple farming was Rp 2.940.874, from on farm activities amounting to Rp 4.069.627, off farm activities amounting to Rp 1.086.207 and non farm activities amounting to Rp 14.983.103. The contribution of the water apple garden to the income of farmer households is 14,82%. This shows that the contribution of water apple farming is small.