Pesticide use related to agriculture and non-agricultural uses has increased six-fold during the last three decades. California has been collecting pesticide use since 1990, and that is recognized as the most comprehensive pesticide reporting program in the world. The program includes the information for 1003 active ingredients and 309 end use commodities. This study aims to develop a relationship between end uses and chemicals to determine the possible impact of end-uses for pesticide demand. In this study, we develop a comprehensive relationship between the pesticide end-uses and active ingredients and analyze pesticide demand using the historical data available from the PUR dataset and agricultural production data using stochastic simulation methods.