Is 30th birthday plates profitable to sell on Amazon United States?

The niche generates $66K/yr across 99 tracked products. 0 of 30 products launched in the last 360 days are still selling. 90-day search growth is -3.7%. Flapen's verdict: Worth a look (56/100).

How competitive is the 30th birthday plates niche?

56 brands and 61 sellers compete. The top 5 products take 17% of clicks and top 5 brands hold 33% of demand.

What do buyers complain about in 30th birthday plates?

Top complaints mined from reviews: Strength, Value For Money, Thickness. The return rate is 2.8%.

When does demand for 30th birthday plates peak?

Demand is steady year-round — the busiest month runs 1.7× the quietest.

What does it cost to enter the 30th birthday plates niche?

Listings span $4.38–$39.63; the average listing price is $13.83 (sweet spot $15–$100). The average incumbent carries 267 reviews — the moat a new listing must climb.

30th birthday plates

Worth a look

Shows a fragmented shelf (top 5 take 17% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Competition

Incredible17%

top-5 click share — an open shelf

Brand share

Incredible33%

top-5 brand share — no brand owns this niche

Review moat

Great266.98

avg incumbent reviews — the moat a new listing must climb

Price range

Good$4.38–$39.63

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.1%

search→purchase rate — share of searches ending in a sale

Avg price

Good$13.83

avg listing price — sweet spot $15–$100

Returns

Good2.8%

return rate — above 5% kills the launch gate

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-3.7%

90-day search growth — must beat 0% to launch

Market size

Bad$66K

$66K/yr · 77K searches

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, 30th birthday plates is a $66K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 33% of demand. Verdict: Worth a look — 56/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

30th birthday plates market data

Units sold / yr: 4K–5K; avg 0–100/product
Revenue / yr: $55K–$69K; units × avg price
Conversion rate: 6.1%
Avg BSR: #2,084
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 8.6%
Avg brand age: 23 months
Avg seller age: 202 days

Competition & brand share

Clicks spread well past the top 5 (17% combined) — an open shelf where new products get seen.

Brands

56 rising

Sellers

Top-5 brand share

33%

Top 20: 73%

Top-5 click share

17%

Top 20: 50%

Open market

63%

CHUNNIN10%
Juhap7%
KHAIVI6%
Generic6%
KFJBPB4%
refavor4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.7×

Open Trend

Top 30th birthday plates search terms

30th birthday plates38K/yr +1.5%4.1% conv.
30th birthday plates and napkins27K/yr -5.3%5.3% conv.
30th birthday plates and napkin sets7K/yr -18.8%3.5% conv.
30th birthday cake plates5K/yr -15.0%5.3% conv.

All search terms

Top 30th birthday plates 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.

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

96Pcs Green Gold 30th Birthday Party Plates and Napkins for Women Men Sage Green 30 Year Old Birthday Party Supplies Themed Paper Dessert Plates Tableware Set for 24 Guests Party Decorations

CHUNNIN$17.223.8★23 rev

60 PCS 30th Birthday Decorations for Women 30th Birthday Plates and Napkins Rose Gold Disposable Tableware Set Party Supplies for Women Cheers to 30 Years Anniversary (30TH)

KFJBPB$8.884.7★82 rev

Juhap 30th Birthday Decorations for Women Rose Gold Thirty Year Old Party Supplies Include 20 Plates 20 Napkins Pink 30 Aged Birthday Party Tableware

Juhap$9.554.6★314 rev

40PCS 30th Birthday Decorations Supplies for Men and Women Navy Blue Silver Happy 30 Year Old Birthday Decor Including Plates Napkins Serve 20

KHAIVI$8.854.5★434 rev

Whaline 96Pcs 30th Birthday Party Supplies Kit Black Gold Paper Plates Napkins Cups So Happy Im Thirty Disposable Tableware Set for 24 Guests Party Table Decor

Whaline$20.134.5★87 rev

Newest

by launch date

Hokinaa 30th Birthday Party Decorations - 96 Pcs Vintage Newspaper Back in 1996 Paper Plates Napkins Forks Tableware Disposable Happy Cheers to 30 Year Old Decor Supplies for Men Women Serve 24 Guests

Hokinaa$14.0761 rev

3mo ago

96Pcs Vintage 30th Birthday Party Decorations Back in 1996 Paper Plates and Napkins Cheers to 30 Years Disposable Tableware Set for Men Women 30 Year Old Birthday Anniversary Party Supplies Serves 24

Justforjoyful$18.0069 rev

8mo ago

60 PCS 30th Birthday Decorations for Women 30th Birthday Plates and Napkins Rose Gold Disposable Tableware Set Party Supplies for Women Cheers to 30 Years Anniversary (30TH)

KFJBPB$8.8882 rev

9mo ago

refavor Vintage 30th Birthday Plates and Napkins 96PCS Back in 1996 Birthday Party Decorations Supplies for Him Her Colorful Cheers to 30 Years Disposable Tableware Set Serve 24

refavor$12.9745 rev

9mo ago

40Pcs Sege Greenery 30th Birthday Decorations for Her Him Eucalyptus-themed Plates and Napkins Set Party Supplies Disposable Sage Tableware for Men Women Happy 30th Birthday Decorations

Meidisi$9.8815 rev

10mo ago

What buyers say about 30th birthday plates

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall24%

“Great quality”

Strength11%

“not too flimsy”

Design-Overall10%

“Nice Decorations”

Durability10%

“They seem pretty good quality and durable”

Color9%

“The color was pretty”

Value For Money9%

“Nice for the price”

Correct Contents4%

“The set included everything we needed for guests”

Baking3%

“Cute themed plates”

Thickness2%

“they are thick”

Advertised Vs Actual Product2%

“Exactly what we needed”

What buyers complain about

Strength22%

“They were flimsy”

Value For Money11%

“I felt the bundle was overpriced”

Thickness9%

“The plates were actually a bit thicker than expected”

Size-Overall8%

“The forks are a little small”

Quality-Overall6%

“The forks are of very low quality”

Print Quality5%

“Poor printing design in plates”

Color5%

“Colors Dont match”

Advertised Vs Actual Product5%

“Not as pretty as pictured”

Weight Heavy3%

“Theses plates are not heavy duty”

Thin3%

“Very thin,”

Top return reasons

Size-Overall36%

Strength12%

Value For Money10%

Advertised Vs Actual Product8%

Color8%

Thin6%

Material Quality6%

Quality-Overall5%

Durability1%

Thickness1%

Common questions

Is 30th birthday plates profitable to sell on Amazon United States?: The niche generates $66K/yr across 99 tracked products. 0 of 30 products launched in the last 360 days are still selling. 90-day search growth is -3.7%. Flapen's verdict: Worth a look (56/100).
How competitive is the 30th birthday plates niche?: 56 brands and 61 sellers compete. The top 5 products take 17% of clicks and top 5 brands hold 33% of demand.
What do buyers complain about in 30th birthday plates?: Top complaints mined from reviews: Strength, Value For Money, Thickness. The return rate is 2.8%.
When does demand for 30th birthday plates peak?: Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the 30th birthday plates niche?: Listings span $4.38–$39.63; the average listing price is $13.83 (sweet spot $15–$100). The average incumbent carries 267 reviews — the moat a new listing must climb.