Home Contact Us Staff Directory John Robbins John Robbins NIACOG Planning OfficesMon - Fri 8:00 am - 4:30 pmSat-Sun Closed525 6TH ST. S.W. MASON CITY, IOWA 50401 PH: 641.423.0491 FAX: 641.423.1637PLANNINGJohn RobbinsSenior PlannerExt. 214