A crop land allocation is a complex process because it requires of consideration of different factors such as ecological, environmental, economical, social, and geographical factors. Crop land allocation has been run by aligning maps with predefined crop site requirements. Geographic Information Systems (GIS) are playing an increasing role in rural planning because of their simplicity and speed of analysis of complex problems. They offer analysis for analyzing spatial and non-spatial attributes of a site. La Rioja province has diverse subdivisions of agriculture. Research has found that La Rioja lacks in rural planning, as well as in crop land allocation. Therefore, crop land allocation has been implemented to find out benefits of GIS rural planning. The crop land allocation applied in La Rioja province. The application introduced in this book proves that GIS has an invaluable role in the development of rural planning and it opens the door for further GIS applications in this field. The book is intended for Rural Planners as an instruction to develop GIS models for crop-land allocation, or anyone else who may be involved in constructing GIS models.