This study aims to determine the costs and benefits of papaya California farm land sand beach, determine the feasibility of California papaya farm on land sand beaches and knowing the problems that are often faced by farmers in land papaya California beach sand. This research was conducted in two hamlets which have land sand beach that Imorenggo Hamlet and Hamlet Gupit Karangsewu Village Galur District of Kulon Progo Regency. Respondent performed using simple random sampling in Gupit Hamlet and Hamlet Imorenggo census in order to obtain 30 respondents farmers. Data obtained by observation and interviews using questionnaires. Then the data were analyzed using analysis of the feasibility of farming. The total cost is required in California papaya farm on land sand Karangsewu Village Rp. 28,933,555, - with the benefit of Rp 133,005,657, -. The feasibility analysis of farming using NPV, Net B / C, IRR and Payback Period. Net Present Value (NPV) at the rate of 4% NPV Rp 31,749,295. This means that the farming of papaya California advantageous because NPV value greater than 0 (zero), then the papaya California farm to be developed. Net B / CR of 3.776 indicates that the benefit gained by the time the plant has produced to cover losses when immature. Net B / C is greater than 1 so farms papaya California feasible. IRR is greater than the discount rate (the interest rate applicable loan) is 44.95% greater than 4% so that the papaya California farming viable. In calculating the payback period, farm papaya California can recover the investment during the quarter of 3.44 or 10 months and 3 days