---
title: "Mailman Costume — $1K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/mailman-costume"
last_updated: "2026-08-12T10:01:43.795Z"
locale: en
meta:
description: "Amazon product research for mailman costume: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mailman costume: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mailman Costume — $1K/mo Amazon US Product Research (2026)"
---
# **Mailman Costume**
**Skip it**
A small market ($17K/yr) — this niche doesn't clear our bar today.
Market size 4Growth 5Conversion 22Competition 50Returns 11Price range 95Avg price 95Brand share 46Review moat 90Quality gap 53
**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**
**Great****195.7**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Bad****1.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****9.0%**
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**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **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 ~~](https://flapen.com/research/methodology)
## **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**
**38**
**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.
9K7KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 22.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/mailman-costume/trend)
## **Top mailman costume search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mailman costume for kids**16K/yr-34.8%2.2% conv. - **mail man costume for kids**7K/yr-42.9%2.3% conv. - **kids mailman costume**5K/yr-45.7%2.4% conv. - **mail carrier costume for kids**4K/yr-47.6%2.5% conv. - **usps costume**4K/yr-32.3%0.3% conv. - **toddler mailman costume**3K/yr-44.1%0.9% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/mailman-costume/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.
0%10%$2K20%$3K30%$5K40%$7K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**California Costumes Toddler Postman Costume Blue**California Costumes**$24.76**4.5★964 rev](https://www.amazon.com/dp/B00411BFXK) [2**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**$20.89**4.8★6 rev](https://www.amazon.com/dp/B0G4QZQD89) [3**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**$29.56**4.8★23 rev](https://www.amazon.com/dp/B0GDFN26L3) [4**Keymall Kids Mailman Costume Mail Carrier Hat Mr. Postman Canvas Bag Vest Envelopes For Halloween Career Day Postal Costume**Keymall**$27.99**4.5★163 rev](https://www.amazon.com/dp/B0B9RWGTZ3) [5**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**$32.53**3.9★18 rev](https://www.amazon.com/dp/B0CMNPLPKS)
**~~View all top sellers →~~**
### **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**$29.56**23 rev6mo ago](https://www.amazon.com/dp/B0GDFN26L3) [**Mailman Costume for Kids with Postman Bag and Role Play Accessories**KalaDuck**$29.52**23 rev6mo ago](https://www.amazon.com/dp/B0GDFGY1CH) [**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**$20.89**6 rev7mo ago](https://www.amazon.com/dp/B0G4QZQD89) [**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**$29.69**23 rev1y ago](https://www.amazon.com/dp/B0F8B2V3DX) [**Rubies United States Postal Service: USPS Letter Carrier Costume for Kids Unisex Medium**Rubies**$18.09**60 rev1y ago](https://www.amazon.com/dp/B0DP86YSM8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ripple Junction USPS Mens Bucket Hat United States Postal Service Priority Mail Carrier Striped Logo Natural & Red One Size**Ripple Junction**$17.30**4.8★**▲ 776%**](https://www.amazon.com/dp/B0DD1VHHQJ) [**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**$20.89**4.8★**▲ 647%**](https://www.amazon.com/dp/B0G4QZQD89) [**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**$29.56**4.8★**▲ 582%**](https://www.amazon.com/dp/B0GDFN26L3) [**Mailman Costume for Kids with Postman Bag and Role Play Accessories**KalaDuck**$29.52**4.8★**▲ 525%**](https://www.amazon.com/dp/B0GDFGY1CH) [**California Costumes Toddler Mr. Postman Costume Large (4-6)**California Costumes**$27.44**4.5★**▲ 491%**](https://www.amazon.com/dp/B003VP2EIC)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mailman costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**31%
*“Higher quality costume that does not feel cheaply made”*
**Size-Overall**14%
*“Fit: It fit true to size”*
**Fun/Entertainment Experience**10%
*“He loves playing dress up”*
**Creativity**7%
*“Great imaginative toy”*
**Gifting Purpose**7%
*“Fun Christmas gift”*
**Advertised Vs Actual Product**4%
*“did its job”*
**Storage Capacity**4%
*“plenty of room for growing”*
**Durability**4%
*“Great quality and durability”*
**Soft Feel**2%
*“My children were gentle with it”*
**Value For Money**2%
*“I would say it is a good value for your money”*
### **What buyers complain about **
**Size-Overall**56%
*“Wrong size pants included or just made way to long”*
**Material Quality**6%
*“Poor Quality Hat Material”*
**Quality-Overall**6%
*“Unfortunately, the hat is really poor quality and quickly developed holes”*
### **Top return reasons **
**Size-Overall**84%
**Value For Money**4%
**Material Quality**3%
**Quality-Overall**3%
**Advertised Vs Actual Product**3%
**Stitch/Finish/Polish**2%
**Product Condition**2%
**Shape/Style**1%
**Defective Material/Parts**1%
**Durability**1%
## **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.
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