777 Diamond Jo LaneNorthwood, IA 50459 Phone: +1 641-323-7777Toll Free: +877-323-5566 Hotel E-mailHotel Website Classification 6 First Class Commission Rooms Rates 10% 102 - Hoteliers! Is your information accurate? Update Here Diamond Jo Worth Casino Hotel Location & Neighborhood Attached to Diamond Jo casino - 22 MI from Mason City Mncpl airport. 24 MI from Mason CityNearest Cross Street: Diamond Jo LaneHotel Location: Highway