Great Southern Bank Address: 1727 Corning Ave, Parsons, KS 67357 Phone: (620) 421-2230 Banks Other Businesses: Labette Bank at 3129 Main St, Parsons, KS 67357 Great Southern Bank at 1900 Main St, Parsons, KS 67357 Commercial Bank at 2227 Main St, Parsons, KS 67357 Commercial Bank-Data Center at 1830 Main St, Parsons, KS 67357