r/geology↗
Geology! Before the World.
The scientific study of the origin, history, and structure of the Earth.
300k subscribers427 posts / mo in Sep 2026 (incl. ~3% by known bots)347 authors / mosince 2009
r/geology has 300k members (+17% over the last 12 months). It gets about 427 posts a month from 347 people. Top topics: Geology Careers Advice, Identify Strange Rocks and Rock Identification Help.
When to post on r/geology
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How r/geology has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/geology
Top topics
Share of the subreddit's posts
- Geology Careers Advice1.1%
- Identify Strange Rocks0.7%
- Rock Identification Help0.5%
- Mineral Hunting0.5%
- Fluorescent Calcite Rocks0.5%
Brands people mention
Most-mentioned brands and sites, last 12 months
- USGS
- ResearchGate
- ScienceDirect
- Doi
- Nature
Everything else about r/geology
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