Is 20 oz styrofoam cups profitable to sell on Amazon United States?

The niche generates $320K/yr across 18 tracked products. 7 of 9 products launched in the last 360 days are still selling. 90-day search growth is +9.3%. Flapen's verdict: Worth a look (58/100).

How competitive is the 20 oz styrofoam cups niche?

11 brands and 124 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in 20 oz styrofoam cups?

Top complaints mined from reviews: Size-Overall, Leak-Proof, Value For Money. The return rate is 0.5%.

When does demand for 20 oz styrofoam cups peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the 20 oz styrofoam cups niche?

Listings span $12.97–$66.26; the average listing price is $32.17 (sweet spot $15–$100). The average incumbent carries 531 reviews — the moat a new listing must climb.

20 oz styrofoam cups

Worth a look

Shows low returns (0.5%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Avg price

Incredible$32.17

avg listing price — sweet spot $15–$100

Price range

Great$12.97–$66.26

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

Conversion

Great10.3%

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

Review moat

Good530.89

avg incumbent reviews — the moat a new listing must climb

Market size

Good$320K

$320K/yr · 96K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay62%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+9.3%

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

Brand share

Bad91%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 20 oz styrofoam cups is a $320K/yr Amazon United States market (96K searches/yr). The top 5 brands hold 91% of demand. Verdict: Worth a look — 58/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

20 oz styrofoam cups market data

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: $322K–$402K; units × avg price
Conversion rate: 10.3%
Avg BSR: #1,166
Page quality: 0%
Prime: 72%
Sponsored: 67%
Out of stock: 3.2%
Avg brand age: 55 months
Avg seller age: 164 days

Competition & brand share

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

124

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

62%

Top 20: 100%

Open market

Mr Miracle31%
DART23%
Shop Square16%
Concession Essentials14%
Wincup7%
Genuine Joe2%
Open — no brand owns it (5 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top 20 oz styrofoam cups search terms

20 oz styrofoam cups23K/yr +10.3%12.7% conv.
styrofoam cups 20 oz16K/yr +16.1%9.8% conv.
20oz styrofoam cups9K/yr +24.1%10.7% conv.
large styrofoam cups10K/yr +0.7%4.0% conv.
foam cups 20 oz9K/yr +14.1%8.9% conv.
20 oz foam cups8K/yr +2.5%10.6% conv.
20oz foam cups5K/yr +12.9%7.6% conv.
20 oz styrofoam cups with lids4K/yr +27.3%7.8% conv.
20 ounce styrofoam cups4K/yr -5.0%13.7% conv.
lean cup5K/yr -0.5%0.1% conv.

All search terms

Top 20 oz styrofoam cups 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 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

DART 20J16 3.7 Top and 2.4 Bottom Diameter 6.1 Height 20 Oz Big Drink Foam Cup (Case of 500) White

DART$48.264.7★4,813 rev

Concession Essentials 20 oz Foam Cups 100 Count Pack Insulated Disposable Cups for Hot & Cold Beverages Durable Lightweight Perfect for Coffee Soda & Events

Concession Essentials$28.684.4★772 rev

20 OZ Foam Cups With Lids for Hot & Cold Drinks USA-Made 25-Pack. Ideal Styrofoam Coffee Cups Insulating To-Go Cups for Soda Tea Juice - Sturdy Disposable & comparable to Industry standard 20J20

Mr Miracle$19.834.5★798 rev

Shop Square 20 Oz Disposable Foam Cups (50 Pack) White Foam Insulates Hot & Cold Beverages Made in the USA To-Go Cups - for Coffee Tea Hot Cocoa Soup Broth Smoothie Soda Juice

Shop Square$25.544.6★505 rev

Mr Miracle 20 oz Styrofoam Cups Disposable Foam Cups (25 Pack) Insulated White Styrofoam Coffee Cups for Hot & Cold Drinks Comparable to Industry 20J16 Standard Foam Cups Made in USA

Mr Miracle$17.004.6★68 rev

Newest

by launch date

Concession Essentials 20 oz Foam Cups 100 Count Pack Insulated Disposable Cups for Hot & Cold Beverages Durable Lightweight Perfect for Coffee Soda & Events

Concession Essentials$28.68772 rev

4mo ago

Mr Miracle 20 oz Styrofoam Cups Disposable Foam Cups (25 Pack) Insulated White Styrofoam Coffee Cups for Hot & Cold Drinks Comparable to Industry 20J16 Standard Foam Cups Made in USA

Mr Miracle$17.0068 rev

6mo ago

Mr Miracle 20 oz Styrofoam Cups Disposable Foam Cups (50 Pack) Insulated White Styrofoam Coffee Cups for Hot & Cold Drinks Comparable to Industry 20J16 Standard Foam Cups Made in USA

Mr Miracle$26.0068 rev

6mo ago

Kleen 20 oz 20J16 Insulated Coffee & Beverages White Foam Cups (500 Cups)

Kleen$57.0015 rev

7mo ago

Acellegic 72 Pack 20 oz Disposable Foam Cups Bulk White Foam Insulated Coffee Drink Cups for Hot and Cold Soda Tea Beverage Party Supplies

Acellegic$20.193 rev

7mo ago

What buyers say about 20 oz styrofoam cups

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

What buyers love

Size-Overall20%

“Great size”

Quality-Overall13%

“Great quality”

Leak-Proof13%

“Did not leak”

Value For Money9%

“Good value”

Advertised Vs Actual Product6%

“Exactly as advertised”

Strength6%

“Super sturdy”

Temperature Retention4%

“Great insulation”

Durability4%

“Durable”

Thickness3%

“They are nice and thick, and the lids fit securely”

Material Quality3%

“Styrofoam cups are superior”

What buyers complain about

Size-Overall26%

“Too small”

Leak-Proof18%

“Cups leaked”

Value For Money15%

“A little pricey”

Eco Friendliness8%

“I know its not the most eco-friendly option”

Quality-Overall7%

“Cheap Lids”

Strength4%

“They are very flimsy”

Thickness3%

“Inconsistent feel and thin”

Ease Of Cleaning1%

“you have to figure in time cost of cleaning up”

Durability1%

“liquid it almost feels like it will break”

Top return reasons

Size-Overall52%

Value For Money15%

Advertised Vs Actual Product7%

Leak-Proof4%

Ease Of Use4%

Product Condition2%

Durability2%

Material Quality2%

Strength2%

Quality-Overall2%

Common questions

Is 20 oz styrofoam cups profitable to sell on Amazon United States?: The niche generates $320K/yr across 18 tracked products. 7 of 9 products launched in the last 360 days are still selling. 90-day search growth is +9.3%. Flapen's verdict: Worth a look (58/100).
How competitive is the 20 oz styrofoam cups niche?: 11 brands and 124 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in 20 oz styrofoam cups?: Top complaints mined from reviews: Size-Overall, Leak-Proof, Value For Money. The return rate is 0.5%.
When does demand for 20 oz styrofoam cups peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the 20 oz styrofoam cups niche?: Listings span $12.97–$66.26; the average listing price is $32.17 (sweet spot $15–$100). The average incumbent carries 531 reviews — the moat a new listing must climb.