---
title: "Spongebob Costume Kids — $8K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/spongebob-costume-kids"
last_updated: "2026-08-10T09:20:01.271Z"
locale: en
meta:
description: "Niche score 38/100 · $8K/yr market · 141K searches/yr · $29.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · $8K/yr market · 141K searches/yr · $29.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spongebob Costume Kids — $8K/yr Amazon US Niche (2026) - Flapen"
---
# **spongebob costume kids**
**Skip it**
A small market ($8K/yr) — this niche doesn't clear our bar today.
Market size 2Growth 20Conversion 3Competition 82Returns 18Price range 85Avg price 95Brand share 51Review moat 85Quality gap 21
**Avg price**
**Incredible****$29.07**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****290.69**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$5.42–$83.06**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****33%**
top-5 click share — an open shelf
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-9.9%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****7.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.2%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$8K**
$8K/yr · 141K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, spongebob costume kids is a $8K/yr Amazon United States market (141K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 38/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spongebob costume kids market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$29K–$36K**
- units × avg price
- **Conversion rate**
- **0.2%**
- **Avg BSR**
- **#2,240**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **56%**
- **Out of stock**
- **18.6%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.
**Brands**
**15 **▲rising
**Sellers**
**32**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**33%**
Top 20: 78%
**Open market**
**21%**
- SPONGEBOB SQUAREPANTS27% - Jazwares Costume Play24% - Nickelodeon11% - Spirit Halloween7% - Rubies6% - Zando5%
## **Demand & seasonality**
Weekly Amazon search volume, last 91 weeks — -9.9% search growth over the last 90 days.
25K15KSpike '24Spike '25Spike '26 seasonNovDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Sep, Oct · busiest ÷ quietest = 86.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/spongebob-costume-kids/trend)
## **Top spongebob costume kids search terms**
- **spongebob costume kids**117K/yr-16.9%0.7% conv. - **kids spongebob costume**16K/yr+9.3%0.6% conv. - **toddler spongebob costume**8K/yr+35.9%0.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/spongebob-costume-kids/search-terms)
## **Top spongebob costume kids products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$2466%$4929%$73812%$9841101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**SPONGEBOB SQUAREPANTS One-Piece Pajamas for Kids 514 years Hooded Fleece Jumpsuit Loungewear Gifts for Girls Boys (13-14 Years Yellow)**SPONGEBOB SQUAREPANTS**$34.58**4.4★60 rev](https://www.amazon.com/dp/B0F7RFNVYM) [2**SpongeBob SquarePants Official Youth Deluxe Halloween Costume - Premium Quality Square Pullover with Shorts and Socks (L)**Jazwares Costume Play**$39.30**4.6★46 rev](https://www.amazon.com/dp/B0F2BK9VKD) [3**Spongebob Square Pants Little Girls Tulle Tutu Costume Dress- Sizes XS-XL Bright Yellow**SPONGEBOB SQUAREPANTS**$29.61**5.0★15 rev](https://www.amazon.com/dp/B0FGZ83FC6) [4**SpongeBob SquarePants Official Toddler Halloween Costume - Premium Quality Foam Backed Top plus Pants with Boot Tops (3T-4T)**Jazwares Costume Play**$35.12**4.9★44 rev](https://www.amazon.com/dp/B0F2B2RRCX) [5**Zando Knee High Tube Socks Kids Classic Triple Stripes Soft Athletic Children Halloween Cosplay Socks for Boys Girls 1 Pairs White Blue Red 4-6 Years**Zando**$5.42**4.6★3,039 rev](https://www.amazon.com/dp/B07G25YN57)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SpongeBob SquarePants Patrick Official Youth Onesie Halloween Costume - Premium Quality Onesie Jumpsuit (M)**Jazwares Costume Play**$19.59**62 rev10mo ago](https://www.amazon.com/dp/B0DK7V5S5G) [**Spongebob Squarepants Kids Costume Mask with Elastic Strap and Foam Padding for Halloween and Dress Up Standard Multicolor**Jazwares Costume Play**$10.76**4 rev11mo ago](https://www.amazon.com/dp/B0FLYK6QB8) [**SPONGEBOB SQUAREPANTS One-Piece Pajamas for Kids 514 years Hooded Fleece Jumpsuit Loungewear Gifts for Girls Boys (13-14 Years Yellow)**SPONGEBOB SQUAREPANTS**$34.58**60 rev11mo ago](https://www.amazon.com/dp/B0F7RFNVYM) [**SpongeBob SquarePants Official Youth Deluxe Halloween Costume - Premium Quality Square Pullover with Shorts and Socks (L)**Jazwares Costume Play**$39.30**46 rev12mo ago](https://www.amazon.com/dp/B0F2BK9VKD) [**SpongeBob SquarePants Official Toddler Halloween Costume - Premium Quality Foam Backed Top plus Pants with Boot Tops (3T-4T)**Jazwares Costume Play**$35.12**44 rev12mo ago](https://www.amazon.com/dp/B0F2B2RRCX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Bellabu Bear SpongeBob SquarePants Rayon from Bamboo Convertible Footie for Baby Boys & Girls (Good VIbes 9-12 Months)**Bellabu Bear**$38.33**5.0★**▲ 1000%**](https://www.amazon.com/dp/B0D7ZC4PBL) [**Unisex Onesie Kids Animal Pajamas Halloween Christmas Cosplay Costume(8-10Years)**Unicorns Angels**$23.42**4.6★**▲ 1000%**](https://www.amazon.com/dp/B0C6M64TH8) [**SPONGEBOB SQUAREPANTS One-Piece Pajamas for Kids 514 years Hooded Fleece Jumpsuit Loungewear Gifts for Girls Boys (13-14 Years Yellow)**SPONGEBOB SQUAREPANTS**$34.58**4.4★**▲ 1000%**](https://www.amazon.com/dp/B0F7RFNVYM) [**yfgkgkjg Unisex Kids Onesie Animal Pajamas One Piece Cosplay Costume Sleepwear Girls Boys Halloween Christmas (8-10Years)**yfgkgkjg**$23.38**4.6★**▲ 1000%**](https://www.amazon.com/dp/B0CHDPJGQF) [**Nickelodeon Spongebob Square Pants Shirts for Boys (3-Pack) KidsGraphic Tshirt for Toddler & Up - 5T Gn/YEL/Pk SS**Nickelodeon**$26.16**4.7★**▲ 1000%**](https://www.amazon.com/dp/B0CMWNR9GN)
**~~View all trending →~~**
## **What buyers say about spongebob costume kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**46%
*“Good Quality and Arrived On time”*
**Size-Overall**19%
*“fit was good”*
**Durability**12%
*“Durable”*
**Advertised Vs Actual Product**8%
*“As described”*
**Value For Money**8%
*“Worth the price very fast”*
**Soft Feel**4%
*“This is soooo Soft and Cute, Cute”*
### **What buyers complain about **
**Size-Overall**50%
*“its much larger than I expected”*
**Soft Feel**20%
*“I only subtracted one star because the fabric isn't very soft”*
**Material Quality**20%
*“Very slippery material”*
### **Top return reasons **
**Size-Overall**60%
**Length**11%
**Advertised Vs Actual Product**3%
**Product Condition**3%
**Feet Fit**3%
**Comfort-Overall**3%
**Quality-Overall**3%
**Material Quality**2%
**Value For Money**2%
**Color**1%
## **Common questions**
- **Is spongebob costume kids profitable to sell on Amazon United States?**
- The niche generates $8K/yr across 45 tracked products. 0 of 16 products launched in the last 360 days are still selling. 90-day search growth is -9.9%. Flapen's verdict: Skip it (38/100).
- **How competitive is the spongebob costume kids niche?**
- 15 brands and 32 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in spongebob costume kids?**
- Top complaints mined from reviews: Size-Overall, Soft Feel, Material Quality. The return rate is 7.0% — above our launch gate.
- **When does demand for spongebob costume kids peak?**
- Demand peaks in Sep–Oct; the busiest month runs 86.8× the quietest.
- **What does it cost to enter the spongebob costume kids niche?**
- Listings span $5.42–$83.06; the average listing price is $29.07 (sweet spot $15–$100). The average incumbent carries 291 reviews — the moat a new listing must climb.
## **Related niches in Clothing, Shoes & Jewelry**
- 72 [**first communion gifts for boys**](https://flapen.com/research/us/clothing-shoes-jewelry/first-communion-gifts-for-boys)$398K/yr+223.5%**Worth a look**- 72 [**fifa world cup 2026 tshirt**](https://flapen.com/research/us/clothing-shoes-jewelry/fifa-world-cup-2026-tshirt)$177K/yr>1,000%**Worth a look**- 72 [**american flag hat**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-hat)$764K/yr+428.8%**Worth a look**- 72 [**white socks men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-socks-men)$3.0M/yr+13.3%**Launch it**- 72 [**american flag overalls**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-overalls)$662K/yr>1,000%**Worth a look**- 73 [**white ankle socks for men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-ankle-socks-for-men)$448K/yr+88.3%**Worth a look**[**All Clothing, Shoes & Jewelry niches **](https://flapen.com/research/us/clothing-shoes-jewelry)