r/UnsolvedMysteries↗
UnsolvedMysteries: This reddit is about unsolved mysteries ...
This subreddit is about unsolved mysteries. Whenever possible, actual redditors have participated in investigating the events. What you are about to read is not a news broadcast.
561k subscribers82 posts / mo in Sep 2026 (incl. ~1% by known bots)65 authors / mosince 2008
r/UnsolvedMysteries has 561k members (+5.9% over the last 12 months). It gets about 82 posts a month from 65 people. Top topics: Missing and Dead Bodies Investigation, Missing Persons and Episode Help.
When to post on r/UnsolvedMysteries
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How r/UnsolvedMysteries has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/UnsolvedMysteries
Top topics
Share of the subreddit's posts
- Missing and Dead Bodies Investigation1.0%
- Missing Persons0.4%
- Episode Help0.4%
- Horror and Mystery YouTube Channels0.4%
- Murder Arrests0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Substack
- TikTok
- Yahoo!
- FBI Human Resources Branch
- The Charley Project
Everything else about r/UnsolvedMysteries
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