B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
23%
23% -- email list degradation rate for email marketing lists (2026)
23% of an email list degrades each year.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
23%
Unit
Percentage
Data Vintage
2026
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
ZeroBounce
Primary
Tier B
https://yocto.agency/email-marketing-statistics/ ↗
Source Article
162 Email Marketing Statistics for 2026 (Sourced)
Email reaches 4.48 billion people and, by the most quoted estimate in the industry, returns $36 for every $1 spent. This page collects 162 figures on how the channel performs in 2026, and every one of them links to the study, dataset or document it came from and carries the year it was published.
If…
Original Research
ZeroBounce
· Original study ↗
Methodology
ZeroBounce data
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email marketing lists: 23% email list degradation rate. Source: ZeroBounce (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/list-degradation-annual
HTML Embed
<blockquote cite="https://lighthousedata.io/data/list-degradation-annual" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>23%</strong> -- email list degradation rate for email marketing lists<br><small>Source: ZeroBounce (2026) · <a href="https://lighthousedata.io/data/list-degradation-annual" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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