Final answer:
The recommended minimum staffing ratio for patrol districts, as per the International Association of Counseling Services, is one staff member per 1,000 to 1,500 students.
Step-by-step explanation:
The minimum staffing required for all patrol districts, according to the International Association of Counseling Services, is one full-time equivalent staff member for every 1,000 to 1,500 students. This recommended ratio helps to ensure that adequate resources are available to meet the student population's needs effectively. Educational institutions should strive to meet or exceed this ratio to provide sufficient support for their communities.