Junk Mail Research and Analysis

Original PaperKarma data, environmental analysis, industry decoders, and reporting.

Flagship Report
14 min read · Updated April 2026 · PDF available

How Junk Mail Impacts the Environment

Junk mail environmental impact: is it real? Yes, but beware of older, often repeated statistics: U.S. advertising mail used about 2.14 million tons of paper in 2024, on the order of 30 to 50 million trees, and the average adult receives roughly…

Key findings
58+ bn pieces of junk mail
10.5% of opt-out requests go to ANA member mailers
~3.8% of mail volume is unaddressed EDDM
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Research

What Actually Happens to Junk Mail You Recycle

Junk mail is recycled, but at a rate no household can verify and that official sources do not agree on. Industry puts the 2024…

Jun 9, 2026 · 7 min read
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Research

Why Retailers Ask for Your ZIP Code (and Where It Ends Up)

Retailers ask for your ZIP code at checkout primarily for marketing. Combined with the name on your credit card, a five-digit ZIP is often…

Apr 4, 2013 · 7 min read
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Research

The Truth About Victoria’s Secret Mailing List Opt-Outs

A Victoria’s Secret opt-out works, and it removes exactly one thing: your record in Victoria’s Secret mailing list. It does not remove you from…

Jul 16, 2007 · 8 min read
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