Mercer County Prosecuting Atty Address: 712 W Main St, Princeton, MO 64673 Phone: (660) 748-3477 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Lawyers, County Government, County Government-Legal Counsel Other Businesses: George-Walker, Jennifer at 207 N Washington St, Princeton, MO 64673 Kelly Hagan I M D Repair at 502 Ballew St, Princeton, MO 64673