Things to Do in Northwood Most visitors plan to hit the casino when they come to town, but Northwood offers more than just Diamond Jo.
Views Read Edit View history. Review tags are currently diamondjo casino available for English language reviews. Very small and not so clean my I've never been to any casino that has had any tighter slots. Please correct your dates and search again. Diamondjo casino first visit to Dubuque, IA. Peninsula was acquired in November by Boyd Gaming. First timer, had a blast!The official website of the Diamond Jo Casino in Dubuque, IA--a Boyd Gaming casino.Gather at Diamond Jo Dubuque · Diamond Club · Explore · Experience. Visit the premier casino and gaming establishment in Northwood, IA; the Diamond Jo Worth Casino. Diamond Jo Casino, Northwood: See reviews, articles, and 23 photos of Diamond Jo Casino, ranked No.1 on TripAdvisor among 4 attractions in Northwood.