Diamond Jo Casino – Worth County at a glance
About Diamond Jo Casino – Worth County
Diamond Jo Casino – Worth County is an Iowa-licensed commercial casino at 777 Diamond Jo Lane in Northwood, Iowa, operated by Boyd Gaming. The property opened in 2006 and runs 1,002 slot machines, 30 table games, and a 7-table poker room on a 24/7 schedule, with golf, restaurant, self-parking, and valet on site. The minimum gambling age is 21, regulated by the Iowa Racing and Gaming Commission. Website: diamondjoworth.com.
Venue photo
Diamond Jo Casino – Worth
Northwood, Iowa
Northwood is the county seat of Worth County in the extreme north of Iowa, approximately 20 miles south of the Minnesota border via I-35 and approximately 15 miles north of Mason City. The Diamond Jo Lane address mirrors the 777 Diamond Jo Lane address used at the sister property in Dubuque — Boyd Gaming’s two Iowa Diamond Jo Casinos share a naming convention that honors the historic Diamond Jo riverboat brand.
The Worth County location serves the Mason City metropolitan area (approximately 30,000 residents) and the southern Minnesota gaming market, as Minnesota’s commercial casino options are limited relative to Iowa’s riverboat-era gaming infrastructure.
Games at Diamond Jo Casino – Worth County
What the directory data shows
Strengths and gaps inferred from games, features, and directory data.
Strengths
3- Ultimate 3-Card Poker and One For The Money alongside standard specialty table games
- 7 Card Poker and Omaha in the 7-table poker room; golf on site
- Boyd Gaming backing; 777 Diamond Jo Lane address mirrors Dubuque sister property
Watch-outs
2- Website error during our data collection — verify at diamondjoworth.com
- Northwood is rural northern Iowa; Mason City is the primary nearby urban market
Boyd Gaming's northern Iowa Diamond Jo — 7 Card Poker, Ultimate 3-Card Poker, golf, and the Mason City/Minnesota market
Diamond Jo Casino – Worth County is Boyd Gaming's northern Iowa property, positioned 20 miles from the Minnesota border to serve Mason City and southern Minnesota visitors. The format is nearly identical to the Dubuque Diamond Jo (same 30 tables / 1,002 machines / 777 Diamond Jo Lane convention). The poker room's 7 Card Poker is the distinctive format; golf distinguishes it from competitors. Verify hours at diamondjoworth.com — the site encountered errors during data collection.
Licensing & Rules
- Regulator
- Iowa Racing and Gaming Commission
- Age Requirement
- 21+
- Sportsbook
- Legal
