B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
82
82 -- customer satisfaction index score for Costco (2025)
Costco achieved an ACSI customer satisfaction score of 82.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
82
Unit
Score
Data Vintage
2025
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.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
American Customer Satisfaction Index (ACSI)
Primary
Tier B
https://cxfoundation.com/blog/retail-customer-experience ↗
Source Article
Retail Customer Experience: Strategies and How to Improve It
July 17, 2025 • 18 min read
Retail Customer Experience: Strategies and How to Improve It
Content Writer
July 17, 2025
What Is Retail Customer Experience?
Retail customer experience (CX) is the totality of every interaction your customer has with your brand: from the second they discover you to the m…
Original Research
American Customer Satisfaction Index (ACSI)
· Original study ↗
Methodology
ACSI (American Customer Satisfaction Index) score on 0-100 scale; Costco was overtaken by Sam's Club in the 'latest ACSI' retail study
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2018 | 84 | |
| 2021-2022 | 81 | -4.0% |
| 2025 (current) | 82 | +1.2% |
Segmentation
Industrymarketing
Cite this stat
Plain Text
Costco: 82 customer satisfaction index score. Source: American Customer Satisfaction Index (ACSI) (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/costco-acsi-customer-satisfaction-2025
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<blockquote cite="https://lighthousedata.io/data/costco-acsi-customer-satisfaction-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>82</strong> -- customer satisfaction index score for Costco<br><small>Source: American Customer Satisfaction Index (ACSI) (2025) · <a href="https://lighthousedata.io/data/costco-acsi-customer-satisfaction-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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