scary halloween costumes for girls
Skip itA small market ($0/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$29.43avg listing price — sweet spot $15–$100
Price range
Incredible$14.92–$50.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great49%top-5 brand share — no brand owns this niche
Review moat
Great436.86avg incumbent reviews — the moat a new listing must climb
Competition
Great39%top-5 click share — an open shelf
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Bad7.3%return rate — above 6% kills the launch gate
Growth
Bad-15.9%90-day search growth — must beat 0% to launch
Market size
Bad$0$0/yr · 810K searches
Conversion
Bad0.0%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.Brands
28 rising
Sellers
67
Top-5 brand share
49%
Open market
47%
- Elibelle22%
- Fun World9%
- FFNXKLDZSW7%
- mcuaeddu5%
- California Costumes5%
- DSplay4%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 37 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Japanese Traditional Dress Kimono Robe for Kids Girls Costume Silk Folding Fans hairstick Fox mask Set(red Back 150cm)
Elibelle$36.804.8★299 rev
Fun World Girls Glitter Ghost Face Costume Medium Black
Fun World$46.804.4★4 rev
Kids Girl Pirate Halloween Cosplay Costume (10-12Y)
DSplay$46.044.2★303 rev
NXXBLLLY Kids Onesie Animal Pajamas Halloween Costumes Christmas Cosplay Costumes for Girl(10-12 Years)
NXXBLLLY$20.684.6★162 rev
Fun Costumes Girls Creepy Clown Costume - Scary Circus Clown Halloween Costume for Kids Vintage - Creepy Doll Cosplay - Medium - Multicolor
Fun Costumes$14.925.0★14 rev
Newest
by launch date
SEHIOZNI Kids Funny Green Monster Onesie Silly Big Mouth Monster Cartoon Soft Plush One Piece (Purple 10-13 Years)
SEHIOZNI$24.0214 rev
mcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (12-14 Years)
mcuaeddu$35.53169 rev
mcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (10-12 Years)
mcuaeddu$36.83169 rev
16 Pcs Princess Dress Up Clothes for Little Girl Role Play Costume Gift Set Princess Mermaid Pretent Play Outfit Toys for Toddler Girls Cosplay Birthday Party Gifts for Girls Age 3 4 5 6 7+ Year Old
JEMSHE$28.84820 rev
CIRCKOPS 10Pcs Halloween Cheerleader Costume for Girls Zombie Cheer Uniform Outfit Scary Cheerleading Costume for Party Dress Up 8-9Y Black
CIRCKOPS$23.3049 rev
Trending
90-day click momentummcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (12-14 Years)
mcuaeddu$35.534.6★
FFNXKLDZSW Kids Onesie Pajamas Animal Cosplay Costumes Sleepwear Halloween Costumes for Girl(8-10 Years)
FFNXKLDZSW$23.234.7★
SEHIOZNI Kids Funny Green Monster Onesie Silly Big Mouth Monster Cartoon Soft Plush One Piece (Purple 10-13 Years)
SEHIOZNI$24.024.2★
AstraPrime Unisex Kids Onesie Flannel Cosplay Costume Halloween Onesie Pajamas Home Clothing(8-10Years)
AstraPrime$21.174.5★
CHETOSHO Girls Unicorn Onesie Hooded Animal Costume for Girls Purple White Stars 10-12 Years
CHETOSHO$21.314.8★
Demand & seasonality
Weekly Amazon search volume, last 86 weeks — -15.9% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 89.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Size fits as should”
“The quality of the mask is amazing”
“Christmas gift”
“Very comfy”
“Great value for your money”
“fun”
“The costume looks like it is high quality material”
“Durable and comfortable”
“Easy for her to take on and off”
“She loves to dress up”
What buyers complain about
“Too small”
“the shirts are very low quality”
“come apart very easily”
“Cheap material”
“The sizing is not accurate”
“Its extremely cheap”
“it's more of a pale purple not blue like the character”
“Couldnt give it a five because the shoulder strap was not as adjustable enough to have it fit”
“Disappointed this was suppose to be a Christmas gift”
“Dress stained up”