Is mailman costume profitable to sell on Amazon United States?

The niche generates $17K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -39.8%. Flapen's verdict: Skip it (36/100).

How competitive is the mailman costume niche?

11 brands and 38 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in mailman costume?

Top complaints mined from reviews: Size-Overall, Material Quality, Quality-Overall. The return rate is 9.0% — above our launch gate.

When does demand for mailman costume peak?

Demand peaks in Sep–Oct–Nov; the busiest month runs 22.9× the quietest.

What does it cost to enter the mailman costume niche?

Listings span $17.30–$32.53; the average listing price is $24.79 (sweet spot $15–$100). The average incumbent carries 196 reviews — the moat a new listing must climb.

Mailman Costume

Skip it

A small market ($17K/yr) — this niche doesn't clear our bar today.

Avg price

Incredible$24.79

avg listing price — sweet spot $15–$100

Price range

Incredible$17.30–$32.53

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

Review moat

Great195.7

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay55%

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

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Conversion

Bad1.8%

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

Returns

Bad9.0%

return rate — above 5% kills the launch gate

Growth

Bad-39.8%

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

Market size

Bad$17K

$17K/yr · 39K searches

Signals High Returns

Is mailman costume profitable on Amazon?

According to Flapen's Amazon United States niche tracking, mailman costume is a $17K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 36/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

mailman costume market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $25K–$31K; units × avg price
Conversion rate: 1.8%
Avg BSR: #7,478
Page quality: 0%
Prime: 96%
Sponsored: 74%
Out of stock: 5.4%
Avg brand age: 45 months
Avg seller age: 184 days

Competition: brands, sellers & click share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

55%

Top 20: 96%

Open market

15%

California Costumes26%
KalaDuck17%
2 MULE TEAM13%
Rubies12%
Keymall10%
CINKCO7%
Open — no brand owns it (5 brands, 15%)

mailman costume demand & seasonality

Weekly Amazon search volume, last 104 weeks — -39.8% search growth over the last 90 days.

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 22.9×

Open Trend

Top mailman costume search terms shoppers use

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

mailman costume for kids16K/yr -34.8%2.2% conv.
mail man costume for kids7K/yr -42.9%2.3% conv.
kids mailman costume5K/yr -45.7%2.4% conv.
mail carrier costume for kids4K/yr -47.6%2.5% conv.
usps costume4K/yr -32.3%0.3% conv.
toddler mailman costume3K/yr -44.1%0.9% conv.

All search terms

Top mailman costume products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

California Costumes Toddler Postman Costume Blue

California Costumes$24.764.5★964 rev

2 MULE TEAM Mailman Costume for Kids Includes Mail Carrier Vest Hat Canvas Bag Mailman Pass Cards and Envelopes for Postman Career Day

2 MULE TEAM$20.894.8★6 rev

Kids Mailman Costume Set - Halloween Mail Carrier Costume for Boys Community Helpers Postal Worker Uniform Set with Mail Bag Toddler/Boy Dress Up Outfit Pretend Play Role Play & Career DayS

KalaDuck$29.564.8★23 rev

Keymall Kids Mailman Costume Mail Carrier Hat Mr. Postman Canvas Bag Vest Envelopes For Halloween Career Day Postal Costume

Keymall$27.994.5★163 rev

CINKCO Kids Premium Mailman Costume Kit Bucket Cap+Postman Bag+Vest+Envelope(4 in 1) Career Day Occupational Postman Dress Up for 5-12 Years Old

CINKCO$32.533.9★18 rev

Newest

by launch date

Kids Mailman Costume Set - Halloween Mail Carrier Costume for Boys Community Helpers Postal Worker Uniform Set with Mail Bag Toddler/Boy Dress Up Outfit Pretend Play Role Play & Career DayS

KalaDuck$29.5623 rev

6mo ago

Mailman Costume for Kids with Postman Bag and Role Play Accessories

KalaDuck$29.5223 rev

6mo ago

2 MULE TEAM Mailman Costume for Kids Includes Mail Carrier Vest Hat Canvas Bag Mailman Pass Cards and Envelopes for Postman Career Day

2 MULE TEAM$20.896 rev

7mo ago

Kids Mailman Costume Set - Halloween Mail Carrier Costume for Boys Girls Community Helpers Postal Worker Uniform Set with Mail Bag Toddler/Boy Dress Up Outfit Pretend Play Role Play & Career DayM

KalaDuck$29.6923 rev

1y ago

Rubies United States Postal Service: USPS Letter Carrier Costume for Kids Unisex Medium

Rubies$18.0960 rev

1y ago

What reviews say buyers love and hate about mailman costume

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

What buyers love

Quality-Overall31%

“Higher quality costume that does not feel cheaply made”

Size-Overall14%

“Fit: It fit true to size”

Fun/Entertainment Experience10%

“He loves playing dress up”

Creativity7%

“Great imaginative toy”

Gifting Purpose7%

“Fun Christmas gift”

Advertised Vs Actual Product4%

“did its job”

Storage Capacity4%

“plenty of room for growing”

Durability4%

“Great quality and durability”

Soft Feel2%

“My children were gentle with it”

Value For Money2%

“I would say it is a good value for your money”

What buyers complain about

Size-Overall56%

“Wrong size pants included or just made way to long”

Material Quality6%

“Poor Quality Hat Material”

Quality-Overall6%

“Unfortunately, the hat is really poor quality and quickly developed holes”

Top return reasons

Size-Overall84%

Value For Money4%

Material Quality3%

Quality-Overall3%

Advertised Vs Actual Product3%

Stitch/Finish/Polish2%

Product Condition2%

Shape/Style1%

Defective Material/Parts1%

Durability1%

Common mailman costume questions

Is mailman costume profitable to sell on Amazon United States?: The niche generates $17K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -39.8%. Flapen's verdict: Skip it (36/100).
How competitive is the mailman costume niche?: 11 brands and 38 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in mailman costume?: Top complaints mined from reviews: Size-Overall, Material Quality, Quality-Overall. The return rate is 9.0% — above our launch gate.
When does demand for mailman costume peak?: Demand peaks in Sep–Oct–Nov; the busiest month runs 22.9× the quietest.
What does it cost to enter the mailman costume niche?: Listings span $17.30–$32.53; the average listing price is $24.79 (sweet spot $15–$100). The average incumbent carries 196 reviews — the moat a new listing must climb.