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r/UnresolvedMysteries↗

Unresolved Mysteries

A subreddit dedicated to the unresolved mysteries of the world. Submissions should outline a mystery and provide a link to a more detailed review of the case such as a Wiki article or news report. Replies analysing and speculating over the mystery and possible explanations are encouraged. -

4.5M subscribers292 posts / mo in Sep 2026 (incl. ~2% by known bots)197 authors / mosince 2013

r/UnresolvedMysteries has 4.5M members (+1.6% over the last 12 months). It gets about 292 posts a month from 197 people. Top topics: Missing and Dead Bodies Investigation, Missing Persons and Missing and Unsolved Mysteries.

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When to post on r/UnresolvedMysteries

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Size and growth

How r/UnresolvedMysteries has grown

r/UnresolvedMysteries

Subscriber growth

Subscribers over time

+1.6%in 12 months · +0.4% in 3 months · +0.1% in 1 month
Oct 20264.5M
Growing4.5M subscribers
Data since Mar 2018Live · through Oct 2026
r/UnresolvedMysteries

Monthly activity

Posts, comments and authors per month

−42%vs Sep 2025 · −26% last 3 months vs the 3 before
Sep 2026292
QuieterPeaked at 5.7k in Aug 2023
Sep 2026: incl. ~2% by known botsData through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/UnresolvedMysteries

Top topics

Share of the subreddit's posts

  1. Missing and Dead Bodies Investigation0.7%
  2. Missing Persons0.5%
  3. Missing and Unsolved Mysteries0.4%
  4. Crime and Violence0.3%
  5. True Crime Cases0.2%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. The Charley Project
  2. CBS News
  3. Newspapers
  4. FBI Human Resources Branch
  5. Find a Grave

The full report

Everything else about r/UnresolvedMysteries

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research