A city, not a single floor
Las Vegas is a documented city in Nevada, positioned at 36.16916667 latitude and -115.14055556 longitude. When someone asks where 21 Plus 3 blackjack is in Vegas, the honest first answer is that no single address answers the question. The game is a table-game variant, and where it sits on any given day is a matter of floor layout, current table inventory, and the decisions of each venue's pit management.
This article explains the structure of finding a specific table game in Las Vegas. It does not publish a list of venues that currently offer 21 Plus 3, because no such list exists in a stable, verifiable form. What exists is a method: understand how casino floors are organised, know what to confirm before you walk in, and know which channel holds the current answer.
The documented venues nearest to the Las Vegas city coordinate are concentrated downtown. Publicly published reference sources document several properties within roughly half a mile of the city point, including the D Las Vegas, Four Queens, Horseshoe, Golden Nugget Las Vegas, and Binion's. These are physical places with documented coordinates, and they illustrate how dense the downtown gaming district is. But none of those documented records states which table games currently sit on which floor.
What 21 Plus 3 is
21 Plus 3 is a side bet attached to a standard blackjack table. A player makes the side bet in addition to their main blackjack wager. The side bet is settled using the player's first two cards and the dealer's up card, treated as a three-card poker hand. Payouts on the side bet are determined by the poker value of those three cards, with higher-ranking three-card hands paying more.
The side bet does not change how the underlying blackjack hand is played. The main game proceeds under the same rules as any other blackjack table at that venue. The side bet is a separate wager with its own house edge, and it settles independently of whether the player wins or loses the main blackjack hand.
Because 21 Plus 3 is a side bet, it appears on blackjack tables that have been configured to offer it. Not every blackjack table carries every side bet. A venue may offer the side bet on some tables and not others, or may add and remove it as table inventory changes. This is the core reason a static list of locations cannot be accurate.
How a casino floor is organised
A Las Vegas casino floor is not a fixed grid. Table games are grouped by type, but the specific tables within each group change. A blackjack pit may contain tables with different minimums, different rule sets, and different side-bet configurations. The table that offered 21 Plus 3 last month may have been moved, reconfigured, or replaced.
Pit managers and floor supervisors control table placement. They adjust the mix of games based on demand, staffing, and the time of day. A side bet like 21 Plus 3 may be more common during peak hours when more tables are open, and less common during slow periods when the venue runs fewer tables. This is a structural fact about how table-game pits operate, not a promise about any specific venue.
The documented venue records in publicly published reference sources give facility-level figures, not table-level detail. For example, the D Las Vegas is documented with more than 1,000 slot machines and 22 table games. That tells you the scale of the operation. It does not tell you which of those 22 table games currently carry the 21 Plus 3 side bet.
Where the game physically sits
When 21 Plus 3 is offered, it sits on a blackjack table. The table itself is a physical object on the casino floor, usually in a pit area with other table games. The side bet is marked on the table layout, typically as a printed circle or box near the main betting spot. A player who walks the floor can identify the side bet by looking at the layout markings.
Casino floors are divided into zones. Table games are often clustered near the main entrance, near the cage, or in a dedicated pit area. Slot machines occupy the surrounding space. The documented downtown venues are compact enough that a visitor can walk the entire gaming floor in a few minutes and visually scan the table layouts for the side-bet marking.
What a visitor cannot do is rely on a map. Casino floor maps, where they exist, show general zones, not individual table configurations. The authoritative current answer is on the floor itself, or in the hands of the pit staff who know which tables are open and what side bets they carry.
Arrival methods and what to confirm
Reaching a specific Las Vegas venue involves a set of arrival decisions. Each method carries its own confirmation points, and none of them can be resolved by this article. The table below compares the confirmation items for each arrival category.
| Arrival method | What to confirm before travelling | Where the authoritative answer lives |
|---|---|---|
| Driving yourself | Parking structure type, self-park versus valet, venue entrance location relative to the garage | The venue's own parking and directions page |
| Arriving by air | Whether the venue runs a shuttle, whether a shuttle requires reservation, whether a third-party shuttle serves the property | The venue's transportation or guest services page |
| Public transit | Whether the venue sits within the transit service area, the last departure time, the walking distance from the nearest stop | The transit operator's published route and schedule information |
| Charter or tour bus | The designated drop-off and pickup point, whether the tour includes gaming time, whether the venue has a group entrance | The tour operator's booking terms and the venue's group services contact |
None of these confirmation items can be answered here. Road distances are always longer than straight-line distances, and this article does not publish road mileage or travel times. The straight-line distances documented for the downtown venues are measured from the Las Vegas city coordinate, not from any reader's location.
Documented straight-line distances
The following table lists straight-line distances from the Las Vegas city coordinate to documented downtown venues. These are great-circle measurements, not driving distances. They establish geographic proximity, not travel time.
| Venue | Straight-line distance from Las Vegas city point | Measurement type |
|---|---|---|
| D Las Vegas | 0.1 miles | Great-circle |
| Four Queens | 0.2 miles | Great-circle |
| Horseshoe | 0.3 miles | Great-circle |
| Golden Nugget Las Vegas | 0.3 miles | Great-circle |
| Binion's | 0.3 miles | Great-circle |
| Golden Gate | 0.4 miles | Great-circle |
| Main Street | 0.4 miles | Great-circle |
| Main Street Station | 0.4 miles | Great-circle |
These figures come from publicly published reference sources and describe a documented point in time. Facility figures like room counts, machine counts, and floor area are revised as properties are rebuilt and expanded. Ownership and branding of casino properties also change through sales and rebrands.
Entry requirements as a category
Entering a Las Vegas casino involves a set of threshold requirements. These are categories of rules, not specific numbers this article can assert for any venue. The legal age to enter a gaming floor is set by the jurisdiction, and in Nevada the general floor age is 21, though some areas of a property may be accessible at 18. The venue enforces the jurisdiction's rule.
Identification is required at entry or when a player is challenged. The accepted forms of identification are set by the venue and by Nevada law. A government-issued photo ID is the standard category, but the specific accepted documents are the venue's decision.
Dress codes exist at some venues and not at others. Where a dress code exists, it is set by the property and may vary by time of day or by area of the property. There is no uniform Las Vegas dress code. A visitor should confirm the venue's policy before arriving.
Entry fees are not a standard feature of Las Vegas casino floors. Some venues or events within venues may charge admission, but the general gaming floor is typically open entry. Whether a specific venue charges an entry fee is a fact that changes and must be confirmed with the venue directly.
What to confirm before you go
The most important confirmation is whether 21 Plus 3 is currently offered at the venue you plan to visit. The authoritative channel for this is the venue's pit staff or table games department. A phone call to the main casino line, asking for the table games pit, is the most direct route to a current answer.
Second, confirm the venue's entry requirements. Age, ID, dress code, and any admission policy are all set by the property. The venue's own website or guest services line carries the current answer.
Third, confirm your arrival logistics. Parking, shuttle, transit, and group drop-off details all live with the venue or the transit operator. Do not rely on a third-party summary that may be out of date.
Finally, understand that table-game availability changes by shift. A side bet offered on a Friday night may not be offered on a Tuesday morning. The only way to know for certain is to ask the venue at the time you plan to be there.
FAQ
Does every Las Vegas casino offer 21 Plus 3 blackjack?
No. 21 Plus 3 is a side bet, and side-bet availability varies by venue and by table. A property may offer it on some blackjack tables and not others, or may not offer it at all. The only way to confirm is to ask the pit staff at the specific venue you plan to visit.
Can I find 21 Plus 3 blackjack on a casino floor map?
Generally not. Casino floor maps show zones and game categories, not individual table configurations or side-bet availability. The side bet is marked on the table layout itself, so walking the floor and reading the layouts is the most reliable way to spot it. Pit staff can also direct you to tables that carry it.
Is 21 Plus 3 available at the downtown Las Vegas venues?
This article cannot assert that any specific downtown venue currently offers 21 Plus 3. The documented downtown venues include the D Las Vegas, Four Queens, Horseshoe, Golden Nugget Las Vegas, and Binion's, but none of the documented records states which side bets their current table inventory carries. Confirm directly with the venue.
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