West Campus Agricultural Center (WCAC) contains some 70 acres of land located along the Santa Cruz River and within a 10-minute drive from the main campus. This Center has also experienced a recent expansion in both facilities and usage. Facilities include a large animal necropsy building, the Arizona Veterinary Diagnostic Laboratory, six buildings housing the Aquaculture Pathology Research Program, a feed mill, experimental feedlots, about 15 acres of pasture, approximately 12 acres of field research plots, two houses for residential personnel, and various support buildings. Structural space totals over 40,000 square feet.

WCAC is mainly used by researchers from the veterinary and animal sciences, plant sciences, entomological sciences, and the Department of Hydrology and Water Resources. The Veterinary Diagnostics Laboratory serves both urban and rural clients throughout the state of Arizona, and provides services to veterinarians, animal owners, and governmental agencies for the diagnosis of disease problems of livestock, companion animals, zoo and wild species.

Like the Campus Agricultural Center, this Center offers ready access to campus-based personnel. However, WCAC provides opportunities for research of a more industrial nature. With the recent addition of a high-capacity sewage disposal system and the expansion of the water delivery system, this Center offers excellent opportunities for both structural and field-based facilities expansion.