Halloween Costume Stores in Denver (2026)

A great Halloween starts with the costume, and the costume usually starts at a store. The good news: for Halloween costume stores Denver has more options than almost any city its size — superstores, year-round shops, haunted-attraction gear, and thrift racks where a killer look costs less than lunch. Here are the costume stores in Denver worth your time, sorted by what you actually need.

One thing to keep in mind while you shop: the wilder your idea, the better it plays. At Denver’s biggest Halloween party, the crowd rewards commitment, and the Coloween costume contest is won by people who went one step further than everyone else. Shop with that in mind.

What Halloween Costumes Will Sell Out in 2026?

Know what you’re hunting before you go. Google’s Frightgeist had KPop Demon Hunters as 2025’s #1 costume, and the leftover stock will vanish first. For 2026, expect Doctor Doom and full villain looks (Avengers: Doomsday), Frankenstein and the Bride as the couples costume of the year (The Bride!), Stranger Things characters, and Wednesday’s gothic-witch look to go fastest.

And the racks get picked clean earlier every year. Americans spent a record $13.1 billion on Halloween in 2025, $4.3 billion of it on costumes, per the National Retail Federation. When a licensed piece is gone, it’s gone. Shop in September.

Spirit Halloween — the big-box default

Spirit Halloween is the pop-up giant, with more than 20 seasonal locations around Denver, so there’s almost always one near you. It’s the fastest way to grab a recognizable pop-culture costume, a group theme, or a last-minute fix. It’s also a full party store: fog machines, animatronics, lights, props, and decorations. Great for speed and selection — just don’t expect anything the person next to you couldn’t also find.

Reinke Bros — for the show-stopper

Home of a legendary haunted mansion in Littleton, Reinke Bros doubles as one of the deepest costume shops in the state — think 20,000-plus costumes to buy or rent, plus masks, wigs, make-up, theatrical props, and illusions. This is where you go when the norm won’t cut it. If you’re building something to actually win the contest at Coloween, start here.

The Wizard’s Chest — open all year

Part toy store, part magic shop, part costume vault, The Wizard’s Chest in Denver’s Cherry Creek area stays open year-round and stocks looks for adults, kids, and even pets. Pirate, superhero, fairy-tale villain, or a giant pickle — the selection is broad and the staff knows their stuff. A reliable pick when you want to browse in person without waiting for the seasonal pop-ups.

Disguises — the themed superstore

Disguises is a 16,000-square-foot costume superstore with themed sections you can get lost in: a medieval castle for Renaissance gear and dragons, a Big Top full of clowns, and a boutique corner for dancewear and high-end looks. Buy or rent — thousands of costumes, wigs, masks, and make-up under one roof. This is the store for people who want to try things on and build a look on the spot.

Gott-A-Costume — buy or rent, year-round

A year-round costume superstore and discount shop with a strong buy-or-rent selection for adults and kids. Beyond costumes, they carry accessories, make-up, and prosthetics — the finishing details that separate a good costume from a great one. A solid middle ground between the big-box speed of Spirit and the deep-cut selection at Reinke Bros.

Cheap Halloween Costumes in Denver: Arc Thrift & Goodwill

A killer costume does not have to be expensive. Arc Thrift has 20-plus Denver-area locations and runs a 50% Saturday discount — put together a look, save money, and give back at the same time. Goodwill runs 30-plus locations and rolls out seasonal costumes, wigs, and accessories every fall. The catch: the good stuff goes fast, so hit the racks early in October before they’re picked clean.

Which store is right for you?

Shop smart, then go win

Whatever store you pick, buy early — the best pieces sell out by mid-October, especially the rentals. If you’re after a full breakdown of the region’s options, our guide to Colorado’s best Halloween costume stores goes wider than Denver alone. And once the costume’s locked, put it to work: the Coloween costume contest rewards the people who committed hardest, so shop like you plan to win it.