B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
38%
38% -- ecommerce market share for Amazon (2020)
Amazon's share of US retail e-commerce market is projected to reach 38.0% in 2020.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
38%
Unit
Percentage
Data Vintage
2020
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Sources (2)
eMarketer
Primary
Tier B
https://www.gra.world/the-top-10-u-s-e-commerce-retailers-are ↗
Source Article
The top 10 U.S. e-commerce retailers are… - GRA
The top 10 U.S. e-commerce retailers are…
Amazon continues to far outdistance all other U.S. retailers in e-commerce sales, but Walmart and other large retailers are showing increased strength as they pivot online.
For the first time, Walmart will surpass eBay as the No. 2 e-commerce retailer in the…
Also cited by
2026-09-15
Original Research
eMarketer
· Original study ↗
Methodology
Ranked by percentage of total online sales by eMarketer
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2009 | 33% | |
| 2016 | 10% | -69.7% |
| 2017 | 44% | +340.0% |
| 2018 | 43% | -2.3% |
| 2018 | 49% | +14.0% |
| 2019 | 49% | 0% |
| 2019 | 47% | -4.1% |
| 2020 (current) | 39% | -17.0% |
| 2020 (current) | 38% | -2.6% |
| 2021 | 50% | +31.6% |
| 2021 | 40% | -20.0% |
| 2022 | 38% | -5.0% |
| 2023 | 37.6% | -1.1% |
| 2024 | 37.8% | +0.5% |
| 2026 | 40% | +5.8% |
Segmentation
Industrymarketing
Cite this stat
Plain Text
Amazon: 38% ecommerce market share. Source: eMarketer (2020). Via Lighthouse Intelligence -- https://lighthousedata.io/data/amazon_ecommerce_market_share_2020
HTML Embed
<blockquote cite="https://lighthousedata.io/data/amazon_ecommerce_market_share_2020" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>38%</strong> -- ecommerce market share for Amazon<br><small>Source: eMarketer (2020) · <a href="https://lighthousedata.io/data/amazon_ecommerce_market_share_2020" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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