Q Casino + Resort is a 24-hour casino and entertainment destination on Schmitt Island in Dubuque, Iowa, with roughly 500 slots, live table games, a retail sportsbook, and two onsite hotels. Its strongest selling point is combining gambling, dinner, and a show into an overnight trip. The main trade-off is location: you are staying on the island, not amid downtown’s attractions. I would put it on the shortlist when Q itself is the reason for your visit.
Q Casino Dubuque at a glance
| Address | 1855 Greyhound Park Road, Dubuque, IA 52001 |
|---|---|
| Property type | Land-based casino resort |
| Operator | Dubuque Racing Association |
| Casino hours | 24 hours daily; individual outlets and staffed games have separate schedules |
| Minimum gambling age | 21 |
| Gaming floor | Approximately 25,000 square feet |
| Slots | Approximately 500; the state regulator lists 504 |
| Table games | 17 listed by the state regulator; not necessarily all staffed |
| Poker room | No |
| Retail sportsbook | Yes, Q Sportsbook |
| Hotels | The Key Hotel, Tapestry Collection by Hilton, and Hilton Garden Inn |
| Dining | Lock 11, Island Social Kitchen + Bar, and Houlihan’s |
| Casino rewards | Q Rewards |
| Phone | 563-582-3647 |
Property information as of October 17, 2026. Gaming inventories and operating schedules can change.
Location: an island destination, not a downtown base
Q is operated by the nonprofit Dubuque Racing Association on historic Chaplain Schmitt Island. It is separate from Diamond Jo Casino, not another name for the downtown property. Use Q’s name and address when booking a hotel or arranging transportation.
The Key Hotel opened in January 2026, and the operator’s July update identifies Lock 11 rooftop dining and Back Waters Amp as additional openings that year. Those additions strengthen the case for spending an evening or staying overnight rather than making a gambling-only stop.
I would choose the location according to the trip. Staying on the island is convenient for a Q concert or casino weekend. A downtown base is more logical if walking between riverfront attractions and restaurants is the priority. Our Iowa casino guide puts Q in the broader statewide picture.
Casino floor and games
The Iowa Racing and Gaming Commission lists 25,068 square feet of casino space, 504 slot machines, and 17 table games. These are inventory figures, not a promise that every game will be available when you arrive. The property guide lists 14 table games, so neither figure should be treated as a count of simultaneously staffed tables.
Slots and video poker
With approximately 500 machines, slots are a substantial part of Q’s appeal. If a particular title or video poker pay table is essential to your visit, ask about it before traveling rather than assuming it is available.
My advice is to pay more attention to the wager screen than the denomination printed on the cabinet. A penny denomination does not mean a penny spin, and extra features can change the cost considerably. Set an entertainment budget before playing; winning stories and losing sessions do not establish a machine’s payout prospects.
Table games
Q offers live table games, but the practical question is which games are staffed during your visit. Call ahead if your plans depend on a particular game, especially for an early-morning or weekday session.
Check the posted minimum and rules before buying in. I would rather spend a minute reading a blackjack payout sign than discover an unfavorable rule after the chips are on the felt. A 24-hour casino does not mean every live table runs around the clock.
Poker room
Q Casino has no dedicated player-versus-player poker room. Video poker and poker-themed games played against the dealer are different offerings.
Q Sportsbook
Q has an on-property retail sportsbook. The Iowa regulator lists Q Sportsbook as operated by Dubuque Racing Association, Ltd.
Check its hours before making a trip to place a wager. Round-the-clock casino access does not establish round-the-clock sportsbook counter service.
The Key Hotel versus Hilton Garden Inn
Q has two onsite hotel choices. I would compare them as distinct bookings rather than treating every room at the resort as interchangeable.
| Hotel | Reason to consider it | What to check |
|---|---|---|
| The Key Hotel, Tapestry Collection by Hilton | The newer boutique option, with Lock 11 rooftop dining atop the hotel | Room category, final price, and included resort amenities |
| Hilton Garden Inn | Documented in-room conveniences, an indoor pool, and fitness facilities | Breakfast cost, pool hours, and the terms of your rate |
The Hilton Garden Inn property guide lists a refrigerator, microwave, and Keurig in each room, plus an indoor pool, hot tub, and 24-hour fitness center. Complimentary parking and Wi-Fi are also listed. Breakfast is described as cooked to order, not complimentary, so I would not count it as included unless the reservation says so.
Those pool and fitness listings belong to Hilton Garden Inn. Guests booking The Key should confirm access rather than assume every amenity is shared.
Guest reports: mixed service experiences
Individual Hilton Garden Inn reviews on Trip.com offer contrasting accounts. An April 2026 guest praised helpful staff and clean rooms, while a May guest reported unfriendly service and a room that was not ready at 4:30 p.m. These limited reports are not a service verdict on either hotel, and they should not be generalized to The Key.
What the published room mix tells you
The published inventories describe Hilton Garden Inn as the larger hotel, while The Key’s opening announcement suggests a more suite-heavy mix.
Gamboool original analysis
We assembled the comparison below from published information and our calculations. These are selected examples, rather than measured gambling sessions or a representative survey.
| Detail | Published information |
|---|---|
| Q Casino + Resort: Advertised operating-hours policy | The official homepage advertises 24-hour opening, without specifying individual restaurant or table-game schedules. |
| Q Casino: Licensed retail sportsbook | The Iowa regulator lists Q Sportsbook as the property’s retail sportsbook; the listing does not provide counter hours. |
| Q Casino: Regulator-listed gaming inventory | The regulator lists 17 table games and 504 slot machines; these are inventory figures, not a guarantee that every table is open. |
| The Key Hotel: Opening and brand affiliation | The official opening release identifies an onsite Tapestry Collection by Hilton hotel and a January 6, 2026, ribbon-cutting. |
| The Key Hotel: Opening-release room inventory | The opening release states 90 total rooms and 20 suites across seven floors; retain this source-specific wording when comparing hotel inventories. |
| Hilton Garden Inn: Published room inventory | The property guide lists 116 rooms, including five suites. |
| Hilton Garden Inn: Parking and internet inclusions | The Hilton Garden Inn section lists complimentary parking and Wi-Fi, while describing breakfast as cooked to order without saying it is complimentary. |
| Hilton Garden Inn: In-room food and drink equipment | The guide lists a refrigerator, microwave, and Keurig in every hotel room. |
| Hilton Garden Inn: Fitness and aquatic amenities | The guide specifies a 24-hour fitness center, an indoor pool, and a hot tub; it does not specify pool hours. |
| Hilton Garden Inn: Outdoor recreation access | The guide describes access behind the hotel to a walking, running, and biking path leading to the Mississippi River. |
| Q Casino + Resort dining: Published restaurant choices | The homepage distinguishes rooftop dining at Lock 11, Island Social Kitchen + Bar, and casual American dining at Houlihan’s; no menu prices appear in this passage. |
| Lock 11: Location and dining formats | The operator places Lock 11 atop The Key Hotel and describes a dining room, an indoor lounge, and private dining spaces. |
| Island Social: Age-access positioning | The operator describes Island Social as an all-ages entertainment venue; this statement is not an age policy for the casino floor. |
| Q Showroom entertainment: Event-specific free admission listing | The homepage marks The Disco Circus performance on October 17 as a free event; this does not establish that all showroom performances are free. |
| Tapestry Collection by Hilton: Direct-booking loyalty policy | The Key Hotel opening release states that Hilton Honors members booking through preferred Hilton channels have access to instant benefits, without specifying a cash value. |
| Calculation | Result | Takeaway |
|---|---|---|
| Published hotel-size comparison: Hilton Garden Inn versus The Key Hotel | 26 rooms | The published room totals describe Hilton Garden Inn as the larger hotel; they do not establish availability or rates for your dates. |
| The Key Hotel suite share using the opening release’s stated total | 22.2222222222 percent of published room inventory | The opening release describes a more suite-heavy room mix than the Hilton Garden Inn guide does, but travelers should confirm the room category and price before booking. |
| Hilton Garden Inn suite share using the property guide’s inventory | 4.31034482759 percent of published room inventory | Suites represent a smaller share of the Hilton Garden Inn inventory described in the guide; do not assume a standard reservation includes a suite. |
Research references: qcasinoandresort.com 1, irgc.iowa.gov, qcasinoandresort.com 3, qcasinoandresort.com 4, dradubuque.com.
Method: Published inputs collected 2026-10-17. Illustrative assumptions are labeled, and the full calculation inputs remain in the saved research record. These examples support planning; they do not predict a particular session.
Using the opening announcement’s stated total, Hilton Garden Inn has 26 more rooms. If The Key’s 20 suites are included in its stated 90-room total, suites account for about 22.2% of its inventory, compared with about 4.3% at Hilton Garden Inn. Later operator wording is less explicit about whether The Key’s suites are included, so this comparison depends on the opening release’s definition.
My takeaway is not that one hotel is automatically better. The Key deserves a look for a special-occasion stay or a suite, while Hilton Garden Inn has a clearly documented set of practical amenities. Room count and suite share do not tell you which has the better price, availability, or service on your dates.
Restaurants and bars
- Lock 11 Rooftop Restaurant + Bar: Atop The Key Hotel, with a dining room, indoor lounge, private dining spaces, and Mississippi River views described by the operator. This is the option I would investigate first for an occasion dinner.
- Island Social Kitchen + Bar: A dining and drinks option associated with the property’s broader entertainment offering.
- Houlihan’s: The casual American choice for a more straightforward meal.
Lock 11 adds an occasion-dining option, while the other outlets provide alternatives for a less formal evening. That is a distinction in setting and format, not a firsthand food review.
Check menus and serving hours before setting your schedule. On a concert night, I would reserve dinner where available and leave a comfortable gap before doors open. An open casino is not a guarantee of a late-night kitchen.
Concerts, entertainment, and amenities
Q hosts indoor performances in the Q Showroom and outdoor concerts at Back Waters Amp. Check the specific venue, admission price, seating format, and age restrictions: a showroom performance and an amphitheater concert can call for different budgets and arrival plans. Some showroom events are advertised as free, but that is event-specific.
Island Social is an all-ages entertainment venue, broadening the property’s appeal for mixed groups. That does not change the casino’s gambling age. Families should check access routes and the rules for their chosen activity.
For a quieter break, the Hilton Garden Inn guide describes access behind the hotel to a walking, running, and biking path leading toward the Mississippi River.
Parking, costs, and practical visit tips
Navigate to 1855 Greyhound Park Road, then follow signs for your hotel, casino entrance, or concert venue. The best drop-off point may differ for each.
- Parking: Complimentary parking is documented among Hilton Garden Inn’s amenities. Read concert instructions separately rather than assuming those terms apply to every event or resort area.
- Hotel costs: Compare the final booking total, including taxes, mandatory charges, breakfast, and cancellation terms, not just the headline room rate.
- Trip budget: Allow separately for dinner, tickets, transportation, and gambling. I treat the gambling allowance as entertainment spending, not money expected back.
- Smoking and access needs: Smoke-sensitive visitors should ask about gaming areas and routes between rooms and restaurants. Request accessible-room and walking-route details before booking if needed.
- Transportation: Arrange the return trip as carefully as the arrival if you plan to drink.
Q Rewards and hotel loyalty
Q Rewards is the casino’s loyalty program. Ask about enrollment before playing, use your card for eligible machine play, and ask how table play is tracked.
Both hotels have Hilton affiliation, but hotel loyalty benefits and casino offers are not automatically interchangeable. Compare the actual booking terms rather than assuming one membership covers everything.
I treat rewards as a rebate on entertainment I already planned to buy, not a reason to increase the budget. Free play is not cash, and an offer requiring an extra trip may cost more than it saves.
My take: who Q Casino suits best
Q makes the most sense for an overnight trip built around gambling, dinner, and a concert, with two hotels and rooftop dining giving visitors reasons to stay on the island. Limited Hilton Garden Inn reports include both praise for cleanliness and staff and complaints about service, so I would not assume a uniform experience. Choose Q when its entertainment is the main event; choose a downtown base when walkable attractions matter more, and check outlet hours before planning a late night.
Frequently asked questions
Is Q Casino Dubuque open 24 hours?
Yes. The casino advertises 24-hour opening. Restaurants, the sportsbook, and staffed table games have separate schedules.
Does Q Casino have a sportsbook or poker room?
Q has a retail sportsbook, Q Sportsbook, but no dedicated player-versus-player poker room.
How old do you have to be to gamble at Q Casino?
You must be at least 21. Bring valid government-issued identification.
Which hotels are onsite?
The Key Hotel, part of Hilton’s Tapestry Collection, and Hilton Garden Inn. Compare the room category, included amenities, and final booking price.
Does Q Casino have a pool?
The Hilton Garden Inn property guide lists an indoor pool and hot tub. Confirm hours and whether your hotel reservation includes access.
Is Q Casino the same as Diamond Jo?
No. They are separate Dubuque casinos. Q is on Schmitt Island.
Sources
- Q Casino + Resort: advertised casino hours, dining, entertainment, and Q Rewards.
- Iowa Racing and Gaming Commission: gaming inventory, contact information, and retail sportsbook listing.
- Dubuque Racing Association’s July 24, 2026, update: hotel integration, Lock 11, Back Waters Amp, and Island Social.
- The Key Hotel opening announcement, January 7, 2026: opening, brand affiliation, and published room inventory.
- Q Casino + Resort property guide: Hilton Garden Inn rooms, amenities, parking, and recreation access.
Poker room and sportsbook
There is no dedicated poker room.