McPherson County South Dakota Directory Home » Directory Welcome to the McPherson County Directory, select a department below. Auditor Clerk of Courts Community Health Nurse Director of Equalization Emergency Management Extension Office Highway Department Register of Deeds Sheriff State’s Attorney Treasurer Veteran Services Weed & Pest Welfare Office McPherson County Courthouse 706 Main St. Leola, SD 57456 News Categories Meetings (1) Public Information (2)