---
title: "100th Birthday Decorations — $168K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/100th-birthday-decorations"
last_updated: "2026-08-08T02:01:46.652Z"
locale: en
meta:
description: "Niche score 55/100 · $168K/yr market · 234K searches/yr · $12.32 avg price. Soft demand (-7.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $168K/yr market · 234K searches/yr · $12.32 avg price. Soft demand (-7.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "100th Birthday Decorations — $168K/yr Amazon US Niche (2026) - Flapen"
---
# **100th birthday decorations**
**Worth a look**
Shows no brand lock-in (top 5 brands take 26% of clicks), but soft demand (-7.2% this quarter) keeps it on the watch list.
Market size 35Growth 21Conversion 65Competition 95Returns 50Price range 55Avg price 53Brand share 97Review moat 59Quality gap 23
**Brand share**
**Incredible****26%**
top-5 brand share — no brand owns this niche
**Competition**
**Incredible****18%**
top-5 click share — an open shelf
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,123.24**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$5.63–$26.63**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$12.32**
avg listing price — sweet spot $15–$100
**Returns**
**Okay****3.0%**
return rate — above 5% kills the launch gate
**Market size**
**Okay****$168K**
$168K/yr · 234K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-7.2%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, 100th birthday decorations is a $168K/yr Amazon United States market (234K searches/yr). The top 5 brands hold 26% of demand. Demand peaks in Jan. Verdict: Worth a look — 55/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **100th birthday decorations market data**
- **Units sold / yr**
- **13K–15K**
- avg 0–100/product
- **Revenue / yr**
- **$154K–$185K**
- units × avg price
- **Conversion rate**
- **5.8%**
- **Avg BSR**
- **#1,611**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **190 days**
## **Competition & brand share**
Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen.
**Brands**
**65 **▼falling
**Sellers**
**69**
**Top-5 brand share**
**26%**
Top 20: 65%
**Top-5 click share**
**18%**
Top 20: 50%
**Open market**
**70%**
- DARUNAXY7% - YeohJoy6% - Juhap4% - Ryzovo4% - ZHUOWEISM4% - JunyRuny4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.
6K4KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/100th-birthday-decorations/trend)
## **Top 100th birthday decorations search terms**
- **100th birthday decorations**92K/yr-23.7%4.8% conv. - **100th birthday**30K/yr-22.5%2.3% conv. - **100 birthday decorations for women**11K/yr+74.8%4.5% conv. - **100 year old birthday decorations**17K/yr+9.9%4.3% conv. - **100 years**12K/yr+16.4%0.3% conv. - **100th birthday banner**8K/yr+31.4%2.4% conv. - **100th birthday party supplies**11K/yr-11.1%2.1% conv. - **100th birthday napkins**8K/yr+9.5%4.3% conv. - **happy 100th birthday banner**7K/yr+6.8%4.7% conv. - **100th birthday decorations for women**6K/yr+21.0%3.6% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/100th-birthday-decorations/search-terms)
## **Top 100th 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%2%$3K4%$7K6%$10K8%$13K1101001K10K 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**DARUNAXY 100th Birthday Party Decoration Vintage Back in 1926 Banner 100 Year Old Birthday Party Poster Supplies Vintage 1926 Backdrop Photography Background for Men & Women 100th Class Reunion Decor**DARUNAXY**$13.67**4.8★1,310 rev](https://www.amazon.com/dp/B0FR95L53L) [2**100th Birthday Party Decorations for Women & Men Pre-Strung 100 YEARS LOVED Banner - Gold Glitter Happy 100 Year Old Birthday Sign Gifts for Him & Her**JunyRuny**$8.84**4.5★23 rev](https://www.amazon.com/dp/B0FCY1L817) [3**15 PCS 100th Birthday Centerpiece Sticks Happy 100th Vintage 1926 Table Flower Centerpieces Sticks Cheers to 100 Fabulous Floral Decorations 100th Birthday Party Centerpieces Supplies Rose Gold**ZHUOWEISM**$9.57**4.6★390 rev](https://www.amazon.com/dp/B0D62M7QC1) [4**100th Birthday Decorations for Women 100th Rose Gold Birthday Party Supplies 100 Years Celebration Kit Including Backdrop Crown Sash banner Hanging Swirl Balloons Paper Fans for Her**Ryzovo**$19.53**4.6★63 rev](https://www.amazon.com/dp/B0FR47BSC6) [5**41PCS 100th Birthday Decorations Rose Gold 100th Party Disposable Tableware Set Include 100 Year Old Birthday Plates and Napkins Plastic Tablecloth For 100 Year Old Gifts Women**SNIMICS**$12.43**4.7★1,103 rev](https://www.amazon.com/dp/B0CFXXDHJQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Flower 100th Birthday Banner Decorations for Women Pink Roses Floral Happy 100th Birthday Banner Backdrop for 100 Years Old Anniversary Party Home Wall Outdoor Indoor Photo Booth Background Supplies**LUUFILx**$8.92**68 rev5mo ago](https://www.amazon.com/dp/B0GMHTMZ6J) [**Vlipoeasn Pink 100th Birthday Table Decoration for Women Large Vintage 1926 Poster Rose Gold Back in 1926 Acrylic Table Sign 100th Class Reunion Decor 100 Year Old Birthday Party Supplies**Vlipoeasn**$11.77**278 rev7mo ago](https://www.amazon.com/dp/B0G57M1NNW) [**100th Birthday Decorations for Women 32PCS 100th Birthday Party Decorations**Juesly**$22.46**752 rev9mo ago](https://www.amazon.com/dp/B0FL7LF37H) [**DARUNAXY 100th Birthday Party Decoration Vintage Back in 1926 Banner 100 Year Old Birthday Party Poster Supplies Vintage 1926 Backdrop Photography Background for Men & Women 100th Class Reunion Decor**DARUNAXY**$13.67**1,310 rev10mo ago](https://www.amazon.com/dp/B0FR95L53L) [**100th Birthday Decorations for Women 100th Rose Gold Birthday Party Supplies 100 Years Celebration Kit Including Backdrop Crown Sash banner Hanging Swirl Balloons Paper Fans for Her**Ryzovo**$19.53**63 rev10mo ago](https://www.amazon.com/dp/B0FR47BSC6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Flower 100th Birthday Banner Decorations for Women Pink Roses Floral Happy 100th Birthday Banner Backdrop for 100 Years Old Anniversary Party Home Wall Outdoor Indoor Photo Booth Background Supplies**LUUFILx**$8.92**4.8★**▲ 268%**](https://www.amazon.com/dp/B0GMHTMZ6J) [**Rybicag 100th Birthday Gifts for Him Her 1926 Cap for 100 Year Old Men Women Vintage Hat**Rybicag**$19.91**4.8★**▲ 236%**](https://www.amazon.com/dp/B0D7C61WWS) [**DARUNAXY 100th Birthday Party Decoration Vintage Back in 1926 Banner 100 Year Old Birthday Party Poster Supplies Vintage 1926 Backdrop Photography Background for Men & Women 100th Class Reunion Decor**DARUNAXY**$13.67**4.8★**▲ 141%**](https://www.amazon.com/dp/B0FR95L53L) [**Vlipoeasn Pink 100th Birthday Table Decoration for Women Large Vintage 1926 Poster Rose Gold Back in 1926 Acrylic Table Sign 100th Class Reunion Decor 100 Year Old Birthday Party Supplies**Vlipoeasn**$11.77**4.8★**▲ 90%**](https://www.amazon.com/dp/B0G57M1NNW) [**100th Birthday Decorations for Women 32PCS 100th Birthday Party Decorations**Juesly**$22.46**4.6★**▲ 74%**](https://www.amazon.com/dp/B0FL7LF37H)
**~~View all trending →~~**
## **What buyers say about 100th birthday decorations**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“good quality and complete setting just as described”*
**Advertised Vs Actual Product**10%
*“exactly as described”*
**Design-Overall**8%
*“Decor was beautiful”*
**Gifting Purpose**8%
*“Gift”*
**Color**8%
*“Beautiful color”*
**Value For Money**6%
*“Worth the money”*
**Size-Overall**4%
*“nice size”*
**Soft Feel**3%
*“The blanket is soft”*
**Fun/Entertainment Experience**2%
*“it's still a fun card”*
**Durability**2%
*“These were durable”*
### **What buyers complain about **
**Size-Overall**17%
*“The card was a lot bigger than I expected”*
**Thickness**15%
*“were pretty careful so I think the balloons may have been too thin”*
**Color**6%
*“Not a good color match”*
**Instructions/User Manual/Troubleshooting**6%
*“No instructions”*
**Durability**6%
*“The balloons did not last”*
**Advertised Vs Actual Product**5%
*“Not as nice as the picture”*
**Functionality-Overall**5%
*“Candle malfunction”*
**Quality-Overall**4%
*“They need some improvement”*
**Print Quality**4%
*“I should've read the fine print”*
**Weight Heavy**3%
*“too heavy”*
### **Top return reasons **
**Size-Overall**32%
**Advertised Vs Actual Product**18%
**Color**17%
**Value For Money**9%
**Quality-Overall**5%
**Print Quality**2%
**Durability**2%
**Defective Material/Parts**2%
**Brightness/Shine/Glow**1%
**Material Quality**1%
## **Common questions**
- **Is 100th birthday decorations profitable to sell on Amazon United States?**
- The niche generates $168K/yr across 96 tracked products. 2 of 28 products launched in the last 360 days are still selling. 90-day search growth is -7.2%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the 100th birthday decorations niche?**
- 65 brands and 69 sellers compete. The top 5 products take 18% of clicks and top 5 brands hold 26% of demand.
- **What do buyers complain about in 100th birthday decorations?**
- Top complaints mined from reviews: Size-Overall, Thickness, Color. The return rate is 3.0%.
- **When does demand for 100th birthday decorations peak?**
- Demand peaks in Jan; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the 100th birthday decorations niche?**
- Listings span $5.63–$26.63; the average listing price is $12.32 (sweet spot $15–$100). The average incumbent carries 1,123 reviews — the moat a new listing must climb.
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