r/trains
All things related to Trains and Rail-fanning!
Founded August 2008 · Public — anyone can post
The Home for all things "Iron Horse". Steam, Diesel, Electric, Pneumatic, Hydraulic. It doesn't matter, let them be seen! Post your Pics, Videos, Stories, experiences, etc. Keep it interesting, topical, NON trolling, and everything will be great. Alaska Railroad to Zambian Railroads, we want to see them all.
Members
656,947
657K
Online now
—
not captured in the last snapshot
Posts per day
43.7
from the last 100 posts, spanning 2.3 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
—
not enough history yet
Promo tolerance
—
not assessed yet
Last post
Sep 29
sampled Sep 30
Distinct posters
92%
of the last 100 posts
Tracking since Sep 30 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Tracking since Sep 30 — growth charts appear after a week of history.
Similar by content
Communities that discuss what r/trains discusses.
A place to discuss and/or post pictures of classic cars, trucks, or bikes; including hot rods, car shows and auto museums. Note - this is not for classifieds. Posts selling vehicles or vehicle parts will be removed.
Aircraft, airplanes, aviation, and flying. Helicopters & rotorcraft, airships, balloons, paragliders, and anything that sustains you in the air is acceptable to post here. Please read our rules before posting, and check if there are megathreads active for any topics. Thank you for participating in the r/aviation community.
A place to share this magnificent obsession. Be polite to your fellow's and keep all posts motorcycle related (examples are stories and pictures with your bike, riding equipment not needed for a nice vanity pic) the moderation here will be light as long as it is on point.
See the full lists on similar subreddits.
r/trains — frequently asked
How many members does r/trains have?
r/trains has 656,947 members as of our most recent crawl on Sep 30. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/trains growing?
We don't have 30 days of snapshot history for r/trains yet, so we're not going to invent a growth number. We've been tracking it since Sep 30; the chart fills in as history accumulates.
How active is r/trains?
Around 43.7 posts per day, measured from the newest 100 posts on Reddit, which span 2.3 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/trains created?
r/trains was founded in August 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/trains?
Of the last 100 posts we sampled, 92% came from distinct accounts; the newest was published Sep 29. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/trains?
We don't have a promo-tolerance read for r/trains yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/trains for mentions?
Hit Watch on this page. Prowlo starts crawling r/trains into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/trains's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/trains's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
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