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Lego Birthday Party Supplies

Pass

Lego Birthday Party Supplies scores 65 out of 100, a Pass. Shoppers spend an estimated $862K a year here, demand is soft, at -4.7% this quarter, and an estimated 2.0% of orders come back.

Flapen Score
65
65 / 100
Top 3% of 11,240 Home & Kitchen niches · +16 vs the category median of 49
Market size
$862K/yr1.2M searches / yr
90-day growth
-4.7%search demand this quarter
Competition
27%top-5 click share · 44 brands · 130 sellers

Flapen Score

Lego Birthday Party Supplies against its category

The dotted line is the Home & Kitchen average. Past it, Lego Birthday Party Supplies is stronger. Inside it, weaker.

65Pass
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Lego Birthday Party Supplies market on Amazon at a glance

Shoppers on Amazon United States searched for Lego Birthday Party Supplies 1.2M times last year and spent an estimated $862K. The top 5 brands take 35% of clicks. Demand peaks in Jan. Flapen scores it 65 out of 100, a Pass.

01 · Demand

An estimated 4.3% of those searches ended in a purchase.

Shoppers searched for this 1.2M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.3% of those searches ended in a purchase. Searches in the last 90 days moved -4.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $862K a year.

Searches, last 12 months
1.2M
Growth, 90 days vs prior 90
-4.7%
Conversion, latest week
4.3%
Market size, estimated
$862Ka year
Peak month
January1.9× the quietest month
Top search term
lego birthday decorations303K searches a year

02 · Price

A sale here is worth $17.38.

Listings sell for $17.38 on average, from $4.37 to $53.36. Amazon reports units sold in ranges. This niche sold 40K to 50K a year. The average listing sells 500 to 750 of them. At $17.38 that is $9K to $13K a year per listing.

Average price
$17.38inside the $15 to $100 sweet spot
Price range
$4.37–$53.36
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
40K–50K
Units per listing a year
500–750
Revenue per listing a year
$9K–$13K
Returns
2.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

89% of listings pay for placement with sponsored ads. 98% ship with Prime. On an average day, 1.2% of listings are out of stock. The average listing ranks #1,234 within Party Packs. It carries 375 reviews at 4.62 stars, so a new listing needs social proof before a better product.

Sponsored listings
89%
Prime listings
98%
Out of stock, average day
1.2%
Average rank
#1,234in Party Packs
Average rating
4.62 starsAmazon United States average 4.42 stars
Average reviews
375per listing
Listings tracked
57

04 · Newcomers

7 of last year's 19 launches cleared the first-year sales bar.

19 products launched here in the last 12 months. 7 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 31 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
19
Successful launches
7Amazon's first-year sales bar
Average brand age
31 months

Products

Top Lego Birthday Party Supplies products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 23, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 27% of clicks, no more. An open shelf where new products get seen.

$0$26K$52K$78K$103K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

44 falling

Sellers

130

Est. top-5 brand share

35%

Top 20: 75%

Est. top-5 click share

27%

Top 20: 63%

Open market

61%

  • LEGO11%
  • QIYANPAX10%
  • PHD CAKE6%
  • LINHAXM5%
  • Kinovo4%
  • Rossesay4%

Demand

Lego Birthday Party Supplies search demand

Weekly searches over the year, seasonality beneath. Pick a range.

30K20KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.9×

Search terms

Top Lego Birthday Party Supplies search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • lego birthday decorations303K/yr
  • lego party decorations164K/yr
  • lego birthday121K/yr
  • lego party118K/yr
  • lego decorations69K/yr
  • lego themed birthday party41K/yr
  • lego party supplies48K/yr
  • lego birthday party30K/yr
  • lego decorations for birthday party29K/yr
  • birthday lego30K/yr

Reviews and returns

What reviews say buyers love and hate about Lego Birthday Party Supplies

We read the reviews and the return reasons for every product selling here.

13%of positive reviews mention “Quality-Overall”
14%of negative reviews mention “Size-Overall”
2.0%of orders come back
“Very small”
A buyer, on “Size-Overall”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

18 topics

NegativePositive

FAQ

Common Lego Birthday Party Supplies questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data