Skip to content

r/Columbine↗

We share research and discuss the victims, investigation, history, school culture, local community, perpetrators, and aftermath of the mass shooting at Columbine High School on April 20, 1999. Rest peacefully to the 14* innocents murdered, and countless others whose lives were forever impacted. 12 students and teacher Dave Sanders were killed by Eric Harris and Dylan Klebold on 4-20-1999. Then-student Anne Marie Hochhalter was left paralyzed and died February 2025 from injuries sustained.

65k subscribers28 posts / mo in Sep 202625 authors / mosince 2013

r/Columbine has 65k members (+6.3% over the last 12 months). It gets about 28 posts a month from 25 people. Top topics: School Shootings & Videos, Dylan Videos and Dylan Troublemakers.

Free report

When to post on r/Columbine

You've used today's free reports

Visitors without an account can open 3 subreddit reports a day. The best time to post on r/Columbine, removal risk and the rest of the report are one step away.

Size and growth

How r/Columbine has grown

r/Columbine

Subscriber growth

Subscribers over time

+6.3%in 12 months · +1.2% in 3 months
Oct 202665k
Growing65k subscribers
Data since Mar 2018Live · through Oct 2026
r/Columbine

Monthly activity

Posts, comments and authors per month

−56%vs Sep 2025 · −33% last 3 months vs the 3 before
Sep 202628
QuieterPeaked at 230 in Apr 2022
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/Columbine

Top topics

Share of the subreddit's posts

  1. School Shootings & Videos0.4%
  2. Dylan Videos0.3%
  3. Dylan Troublemakers0.3%
  4. Reading Recommendations0.2%
  5. School Shootings & Safety0.2%

The full report

Everything else about r/Columbine

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