What is Diamond Jo Casino?
Diamond Jo Casino is a casino in Dubuque, Iowa, United States.
- Dubuque has 2 casinos in this catalog, so it is one of several options in the city.
About Diamond Jo Casino
Diamond Jo Dubuque is a gambling casino and entertainment complex located in the Port of Dubuque, in Dubuque, Iowa. The casino is owned and operated by Las Vegas-based Boyd Gaming, which also owns Diamond Jo Worth in Northwood, Iowa. It is a member of the Iowa Gaming Association, and its license is held by the Dubuque Racing Association, which operates Q Casino. Beginning operations on May 18, 1994, the Diamond Jo was a three-level, 305-foot (93 m), 1,500-passenger vessel in Dubuque's Ice Harbor. The boat was a dockside that did not cruise, the casino became land-based when its new facility opened December 11, 2008.
Description from Wikipedia, available under CC BY-SA 4.0.
Everything below is answered from Diamond Jo Casino's catalog record and the casino rules that apply in United States. Where a fact is not published, the question is left out rather than guessed at.
Where is Diamond Jo Casino?
Diamond Jo Casino is at 301 Bell Street, 52001, Dubuque, Iowa, United States.
- Coordinates: 42.49741, -90.65938.
- Phone: +1 563-690-4800.
- Official website: https://www.diamondjodubuque.com/.
What are the opening hours at Diamond Jo Casino?
Diamond Jo Casino is listed as open 24 hours a day, every day.
- Restaurants, the cage, the poker room and individual table games often keep shorter hours than the gaming floor.
How old do you have to be to enter Diamond Jo Casino?
You must be at least 21 to enter Diamond Jo Casino.
- Carry photo ID even if you are well over the limit — staff check on appearance, not on the paperwork you left at the hotel.
Do you need ID to get into Diamond Jo Casino?
Yes. Government-issued photo ID is required to claim a jackpot, open a player's-club account or buy alcohol, and is routinely checked at the door for anyone who looks under 30.
What facilities does Diamond Jo Casino have?
Diamond Jo Casino lists Wheelchair Accessible.
Can you smoke inside Diamond Jo Casino?
Diamond Jo Casino follows the smoking rules for Iowa. Smoking rules are set state by state and often property by property. Nevada casinos allow smoking at the tables and machines; most other states ban it indoors or confine it to a sealed room.
- A property can always be stricter than the law requires, and many are.
What currency do you need at Diamond Jo Casino?
Diamond Jo Casino deals in the US dollar (USD).
- Cash machines on a casino floor charge the worst rates in the building; change money before you arrive.
- On tax: Casino winnings are taxable income. Casinos withhold 24% and issue a W-2G above set thresholds (from $1,200 on a slot jackpot), and non-resident visitors are generally withheld at 30% unless a tax treaty applies.
What other casinos are near Diamond Jo Casino?
The closest casino to Diamond Jo Casino is Q Casino in Dubuque, about 2.5 km away in a straight line.
- Distances are straight-line from this venue; road journeys will be longer.
- Q CasinoDubuque, United States · 2.5 km
- Bally's Quad Cities Casino & HotelRock Island, United States · 116 km
- Ho-Chunk Gaming MadisonMadison, United States · 128 km
- Next Stop GamingRoscoe, United States · 135 km
- Ho-Chunk Gaming Wisconsin DellsBaraboo, United States · 135 km
- Hard Rock Casino RockfordRockford, United States · 142 km
How reliable is this information about Diamond Jo Casino?
This profile is built from OpenStreetMap and Wikidata, last updated July 2026. Country rules were reviewed in August 2026.
- Opening hours, table minimums and dress codes change without notice — call ahead before a long trip.
- The operator's own site is linked above and is the authority on current hours and promotions.
Evidence and verification
How much confidence to place in this profile
This panel separates confirmed facts from listed claims and missing details for Diamond Jo Casino. Physical casino details can change quickly, so use unknowns as prompts to verify.
Building profile
Source basis
openstreetmapwikidata
Identity and location
Address and map coordinates are listed for trip planning.
Amenities and logistics
1 amenity item listed for visit planning.
Hours and access
The casino is listed as 24 hours, though specific venues inside may vary.
Not listed yet: gaming floor, table limits and player reports. Confirm last verification date, current table minimums and maximums, slot count and denomination range and fresh player reviews with the property before you rely on them.
Confidence labels guide research, not gambling outcomes. Always confirm current terms, laws, limits, and responsible gambling tools before play.
Sources
Every claim above is anchored to one of the public records below. Click through to verify directly.
Amenities
Wheelchair Accessible
Quick Info
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