Halloween Doppelgänger Index: Your Odds of Meeting a Costume Twin 

There’s nothing spookier than spending weeks planning the perfect Halloween costume, only to walk into the party and see someone else had the exact same idea. Booooo. 

From witches and zombies to this year’s biggest pop culture hits, like Nicki from Obsession, some costumes are way more likely to have you seeing double than others. But how likely are you to run into someone dressed exactly like you this Halloween?  

To find out, we surveyed 2,500 adults across the US and Canada about what their costume plans. From there, we calculated your odds of meeting a Halloween doppelgänger, 2026’s most popular costumes, and where you’re most likely to see double. 

Key findings: 

• Costume wearers have a 1 in 2 chance of meeting their costume doppelgänger this year 

• Doppelgänger hotspots: Delaware has the highest odds in the US at 91%, while Manitoba tops Canada at 85% 

• Going as a witch? Prepare to see double: witch wearers will have an 80% chance of encountering another witch this Halloween  

• America’s top costumes and odds: Witch (81%), Ghostface (69%), Vampire (65%) 

• Canada’s top costumes and odds: Witch (75%), Vampire (73%), Cowboy/cowgirl (70%) 

• 40% would consider changing their costume if they discovered it was going to be extremely popular 

Where you’re most (and least) likely to meet your Halloween doppelgänger 

You might think you’ve nailed a one-of-kind Halloween look, but depending on where you live, your costume could have a few copycats lurking around. 

In the US, Delaware is the doppelgänger hotspot, with costumer wearers facing a 91% chance of encountering someone dressed the same. Mississippi isn’t far behind at 90%, while Nevada ranks #3 at 88%. 

If matching costumes give you the ick, head down south! Texas has the lowest doppelgänger odds in the nation at 52%, followed by Florida (53%) and California (56%). Still, even in the “safest” states, your chances of seeing double are around 1 in 2.  

Over in Canada, Manitoba ranks #1 with a 85% chance of meeting your costume twin. New Brunswick follows at 82%, with Alberta at 66%. At the other end of the spooky spectrum, Ontario has the lowest odds at 53%, followed by British Columbia (64%).  

2026’s costumes with the highest (and lowest) doppelgänger odds 

Witches should prepare for some serious double trouble. 

As America’s popular costume this year, witches have an 81% of encountering another witch this Halloween. Ghostface follows with 69% odds, ahead of vampires (65%), cowboys/cowgirls (65%), and zombies (61%). So much for being one of a kind.  

But if you want to dodge costume doppelgängers in the US, trending pop culture looks could be your best bet. Lucy from hit series Tell Me Lies has the lowest doppelgänger odds at just 5%, followed by Lady Gaga (6%), Harry Styles (7%), Timothee Chalamet (7%), and Taylor Swift (8%); making them some of the most unique costume choices this year. 

Up in Canada, they’re also in their witch era. Anyone donning a pointy hat will face a 75% chance of meeting a spooky twin. Vampires are hot on their heels at 73%, followed by cowboys/cowgirls (70%), zombies (65%), and pirates (64%). In other words, your Halloween party might look less like a costume contest and more like a family reunion. 

Want to stand out in Canada? Pop culture-inspired costumes could once again be the safest best. Lucy from Tell Me Lies has the lowest odds at just 4%, followed by Travis Kelce (5%), Taylor Swift (6%), Sabrina Carpenter (7%), and Jennifer from Jennifer’s Body (8%); giving Canadians a better chance of avoiding that awkward “who wore it better” moment. 

From house parties to happy hour: Where costume twins are most likely to collide 

In the US, house parties are Halloween HQ, with your highest chance of spotting a costume twin (41%). Another 29% are heading to public events or festivals, while 1 in 10 will be dressed up at a bar or nightclub.  

Canada follows a similar pattern. House parties are prime territory for doppelgängers (44%); while public events or festivals follow at 23%, with bars and nightclubs at 12%. 

Trend or treat: How much do we care about being original? 

Americans want to stand out, but they won’t lose sleep over it. About 2 in 5 (41%) would consider changing their costume if they found out it was going to be extremely popular, yet just 8% would actually be bothered if someone turned up wearing the same thing. And despite the endless stream of viral costume inspiration, 40% say it’s not important at all for their look to be trendy or culturally relevant this year; only 1 in 6 (17%) admit staying on trend is very important for them.  

Canadians are slightly more trend-conscious, but still don’t mind sharing the spotlight. More than 1 in 3 (38%) would consider switching costumes if their fit became too popular, while 1 in 10 (10%) would be bothered by someone wearing the same look. However, just 1 in 4 Canadians say dressing trendy or culturally relevant is very important to them – 47% more than those in the US. 

Conclusion

Whether you’re going as a witch, your favorite pop culture icon, or desperately trying to avoid a costume doppelgänger, one thing is clear: being original this Halloween could be trickier than you think. But hey, maybe great minds (and great costumes) think alike! 

Methodology

In September 2026, we conducted a survey of 2,500 Canadians and Americans asking about their Halloween plans, including the costume they intend to wear and how many other costumed people they expect to counter.  

To calculate doppelgänger odds, we combined the percentage of respondents planning to wear each costume with the number of other costumed people they expect to encounter. This allowed us to estimate the probability of encountering at least one person wearing the same costume, using the following formula: 

Doppelgänger probability (%) = [1 − (1 − costume popularity %)ᴺ] × 100 

Where N represents the estimated number of other costumed people a respondent expects to encounter. 

State and provincial findings were only included where there was a sufficient number of qualifying responses.  

Fair use 

Feel free to use the data or visuals on this page for non-commercial purposes. Please be sure to include proper attribution linking back to this page to give credit to the authors.  

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