---
title: "South Park Birthday Decorations — $15K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/south-park-birthday-decorations"
last_updated: "2026-08-06T18:23:58.679Z"
locale: en
meta:
description: "Niche score 31/100 · $15K/yr market · 34K searches/yr · $12.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 31/100 · $15K/yr market · 34K searches/yr · $12.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "South Park Birthday Decorations — $15K/yr Amazon US Niche (2026) - Flapen"
---
# **south park birthday decorations**
**Skip it**
A small market ($15K/yr) — this niche doesn't clear our bar today.
Market size 4Growth 13Conversion 45Competition 19Returns 81Price range 54Avg price 56Brand share 24Review moat 68Quality gap 21
**Returns**
**Great****1.7%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****768.15**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$12.73**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$7.84–$23.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****3.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****90%**
top-5 brand share — brand-locked demand
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-24.7%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$15K**
$15K/yr · 34K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, south park birthday decorations is a $15K/yr Amazon United States market (34K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jan. Verdict: Skip it — 31/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **south park birthday decorations market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$10K–$13K**
- units × avg price
- **Conversion rate**
- **3.6%**
- **Avg BSR**
- **#7,240**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **20.8%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**13**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**7%**
- Seyal77% - Odd Sox4% - GRAPHICS & MORE3% - South Park3% - Concept One3% - SAXAMPPA3% - Open — no brand owns it (3 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -24.7% search growth over the last 90 days.
1K600Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/south-park-birthday-decorations/trend)
## **Top south park birthday decorations search terms**
- **south park birthday decorations**15K/yr-31.5%2.6% conv. - **south park party decorations**8K/yr-22.2%3.3% conv. - **south park decorations**4K/yr-0.2%1.8% conv. - **south park birthday**4K/yr-24.2%0.9% conv. - **south park cake topper**4K/yr-25.1%2.9% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/south-park-birthday-decorations/search-terms)
## **Top south park birthday decorations 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%10%$2K20%$3K30%$5K40%$6K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**South Paark-Inspired Happy Birthday Banner Theme Party Decoration Teens & Adults Bold and Colorful Hanging Banner for Birthday Celebrations Events and Photo Booth Backdrops Reusable and Easy to Hang**Seyal**$9.85**4.4★18 rev](https://www.amazon.com/dp/B0DYNXRFZG) [2**South Paark Cupcake Toppers Funny Cartoon-Inspired Party Picks for Birthday Decorations Perfect for Comedy Show Fans Themed Parties & Adults Celebrations and Cupcake Display Accessories**Seyal**$7.84**4.7★25 rev](https://www.amazon.com/dp/B0DYJRK8LW) [3**South Paark Garland Decoration for Birthday Party Funny Theme Banner for Boys Girls Adults and Fans Hanging Flag Bunting for Wall Cake Table Photo Booth and Party Background Decor**Seyal**$9.67**4.2★4 rev](https://www.amazon.com/dp/B0DYJPH9TF) [4**South Park One Banner Decoration Cartoon-Themed Party Garland Featuring Bold Lettering & Fun Character Designs Supplies for 1st Birthday Celebrations Fan Events & Themed Parties**Seyal**$7.87**0.0★0 rev](https://www.amazon.com/dp/B0DYN6MMFP) [5**Odd Sox Down 360 Knit Towelie Novelty Crew Socks Size Large Mens 812 / Womens 9.513.5 Tv Cartoon Fan Gift Durable Knit Comfort Comfortable Everyday Graphic Design**Odd Sox**$14.12**4.8★750 rev](https://www.amazon.com/dp/B07YN6JS78)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**48Pcs Funny Paper Plates Cartoon Theme Happy Birthday Disposable Tableware Set Anime Paper Platters for Cartoon Anime Funny Birthday Party Favors Funny Theme Party Supplies Decorations 7inch**MinFyberd**$11.54**3 rev8mo ago](https://www.amazon.com/dp/B0G1XQ4W3B) [**South Paark-Inspired Happy Birthday Banner Theme Party Decoration Teens & Adults Bold and Colorful Hanging Banner for Birthday Celebrations Events and Photo Booth Backdrops Reusable and Easy to Hang**Seyal**$9.85**18 rev1y ago](https://www.amazon.com/dp/B0DYNXRFZG) [**South Park One Banner Decoration Cartoon-Themed Party Garland Featuring Bold Lettering & Fun Character Designs Supplies for 1st Birthday Celebrations Fan Events & Themed Parties**Seyal**$7.87**0 rev1y ago](https://www.amazon.com/dp/B0DYN6MMFP) [**South Paark Cupcake Wrapper Set for Birthday Parties Decorative Cartoon-Inspired Cupcake Holders for Adults Unique and Colorful Party Supplies for Celebrations Events & Gatherings**Seyal**$7.87**2 rev1y ago](https://www.amazon.com/dp/B0DYNRTGXG) [**South Paark Cupcake Toppers Funny Cartoon-Inspired Party Picks for Birthday Decorations Perfect for Comedy Show Fans Themed Parties & Adults Celebrations and Cupcake Display Accessories**Seyal**$7.84**25 rev1y ago](https://www.amazon.com/dp/B0DYJRK8LW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Odd Sox Down 360 Knit Towelie Novelty Crew Socks Size Large Mens 812 / Womens 9.513.5 Tv Cartoon Fan Gift Durable Knit Comfort Comfortable Everyday Graphic Design**Odd Sox**$14.12**4.8★**▲ 231%**](https://www.amazon.com/dp/B07YN6JS78) [**48Pcs Funny Paper Plates Cartoon Theme Happy Birthday Disposable Tableware Set Anime Paper Platters for Cartoon Anime Funny Birthday Party Favors Funny Theme Party Supplies Decorations 7inch**MinFyberd**$11.54**4.3★**▲ 210%**](https://www.amazon.com/dp/B0G1XQ4W3B) [**South Park Gifts for Men Teens Throw Blanket for Couch Sofa Bed Soft Cozy Fleece Blankets Kenny Eric Cartman Bed Accessories Decor 59 x 51 Inches (Black/Multi Eric)**South Park**$23.44**4.6★**▲ 91%**](https://www.amazon.com/dp/B0DJSGVTSF) [**3x5 Feet Respect My Authority Flag Banner for Home Fraternities Man Cave Room Decor**SAXAMPPA**$12.81**4.8★**▲ 36%**](https://www.amazon.com/dp/B0CSK3X5T7) [**South Park Officially Licensed Sticker Pack Die Cut Large Deluxe Vinyl Stickers Variety Pack for Laptop Water Bottle Scrapbooking & Indoor/Outdoor Use Set of 50**GRAPHICS & MORE**$13.06**4.7★**▲ 13%**](https://www.amazon.com/dp/B0B8N988VK)
**~~View all trending →~~**
## **What buyers say about south park birthday decorations**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**40%
*“Great quality”*
**Gifting Purpose**22%
*“Perfect gift for my son”*
**Comfort-Overall**9%
*“she still loves the comfort”*
**Battery Life**7%
*“The battery life is amazing i honestly dont think shes turned them off since christmas n its now Feb 1st”*
**Value For Money**6%
*“Good deal”*
**Warmth**2%
*“Keeps him warm”*
**Thickness**2%
*“the thickness. Twss”*
**Ease Of Use**2%
*“They were very easy to use”*
**Advertised Vs Actual Product**2%
*“looks just like shown in picture”*
**Brightness/Shine/Glow**2%
*“Images are clear n bright”*
### **What buyers complain about **
**Size-Overall**19%
*“the fit isnt the best”*
**Ease Of Use**14%
*“A bit hard to put each letter though”*
**Product Condition**14%
*“Arrived used and with no ribbon”*
**Advertised Vs Actual Product**14%
*“Don't believe the picture”*
**Adhesion/Stickiness**14%
*“The glue dots kind of suck so I used regular tape”*
**Brightness/Shine/Glow**7%
*“Not the brightest”*
### **Top return reasons **
**Size-Overall**64%
**Advertised Vs Actual Product**6%
**Product Condition**5%
**Thin**5%
**Feet Fit**3%
**Strength**3%
**Defective Material/Parts**3%
**Material Quality**3%
**Adhesion/Stickiness**3%
**Warmth**3%
## **Common questions**
- **Is south park birthday decorations profitable to sell on Amazon United States?**
- The niche generates $15K/yr across 13 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -24.7%. Flapen's verdict: Skip it (31/100).
- **How competitive is the south park birthday decorations niche?**
- 9 brands and 13 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in south park birthday decorations?**
- Top complaints mined from reviews: Size-Overall, Ease Of Use, Product Condition. The return rate is 1.7%.
- **When does demand for south park birthday decorations peak?**
- Demand peaks in Jan; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the south park birthday decorations niche?**
- Listings span $7.84–$23.44; the average listing price is $12.73 (sweet spot $15–$100). The average incumbent carries 768 reviews — the moat a new listing must climb.
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