Prince William County Government--question, Direct Dial Numbers, Courts, Circuit Court, General District Court, Civil Clerk Manassas, VA 20108 Phone : (703) 792-6149 Business Category Government Offices & Public Schools Prince William County--courts, General District Court, Civil Clerk Manassas, VA 20110 Phone : (703) 792-6149 Business Category Government Offices-County Government Offices & Public Schools