ECHOExploratory Compendium of Humanity Online

Pushshift Reddit — 2009 (Annual)

AggregateLargeRedditEngagementSentimentSocial graph

A Reddit (Pushshift archive, full year 2009) dataset of 13,585,281 comments across 12 months, collected by Jason Baumgartner via Pushshift.io Reddit API archive. Each record contains 5,434 subreddits, 8,233,162 reply edges across all months. Annual aggregate of all Pushshift Reddit comments for 2009 — 13,585,281 comments across 12 months and 5,434 subreddits.. Suitable for longitudinal Reddit analysis, annual growth trends, subreddit evolution, platform-scale engagement research.

#Annual snapshot#Pushshift#Reply network#Subreddit

Cite this dataset at pushshift-reddit-2009.echo.directory

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Analytics

Data availability: Basic stats only — non-standard dataset format

  • Time-series of aggregate counts rather than individual records

Full text and graph analytics available in individual monthly entries pushshift-reddit-2009-01 through pushshift-reddit-2009-12.

13.6M
Total Comments (2009)
12
Months Covered
5.4K
Unique Subreddits
8.2M
Reply Edges
Comments per Month (2009)
121.9M
101.7M
111.7M
091.4M
081.2M
071M
06905.4K
05841.6K
04757K
03724.9K
01694.5K
02647K
Top Subreddits (2009)
  1. 1AskReddit2.2M
  2. 2reddit.com1.5M
  3. 3politics910.7K
  4. 4pics813.4K
  5. 5WTF671.6K
  6. 6programming553.3K
  7. 7IAmA517.9K
  8. 8gaming505K
  9. 9atheism504.1K
  10. 10worldnews451.7K
  11. 11funny442.3K
  12. 12science426.4K
  13. 13technology319.9K
  14. 14Economics147.4K
  15. 15entertainment131.1K

Record

Catalog key
pushshift-reddit-2009
Authors
Baumgartner, Jason; Zannettou, Savvas; Keegan, Brian; Squire, Megan; Blackburn, Jeremy
Year
2020
Source paper
The Pushshift Reddit Dataset
DOI / arXiv
10.1609/icwsm.v14i1.7347
License
Unknown
Records
13,585,281
Languages
en
Collected
2009 (2000s)
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://files.pushshift.io/reddit/comments/ unverified
Hosted copy
Mirrored on echo.directory on 2026-10-02, 1.6 GB across 12 files. Checksums in MANIFEST.json.

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{baumgartner2020pushshift,
  title         = {The Pushshift Reddit Dataset},
  author        = {Baumgartner, Jason and Zannettou, Savvas and Keegan, Brian and Squire, Megan and Blackburn, Jeremy},
  year          = {2020},
  eprint        = {2001.08435},
  archiveprefix = {arXiv}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Baumgartner, J., Zannettou, S., Keegan, B., Squire, M., & Blackburn, J. (2020). Pushshift Reddit — 2009 (Annual) [Data set]. https://doi.org/10.1609/icwsm.v14i1.7347

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Baumgartner, Jason, et al. Pushshift Reddit — 2009 (Annual). 2020, doi.org/10.1609/icwsm.v14i1.7347.

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