warn-index/us-warn-layoffs

WARN Index: US WARN Act Layoff Dataset

Worker Adjustment and Retraining Notification (WARN) Act notices filed with US state labor agencies, collected daily from 48 state sources and normalized into one table.

• Notices: 96,216
• Notice dates: 1989-01-13 to 2026-11-06
• Snapshot: 2026-11-09 11:37 UTC (refreshed weekly)

Live tracker and API

For real-time filings, maps, alerts and the REST API, visit WARN Index. API docs: https://warnindex.com/api-docs

The same weekly snapshot is published on Hugging Face and Kaggle.

Fields

Column	Description
notice_id	Stable WARN Index id for the notice (a hash of state, employer, notice date, city and ZIP). Same id across snapshots: use it to join versions.
state	Two-letter code of the state whose labor agency published the notice.
employer	Employer name exactly as published by the state.
notice_date	Date the notice was filed or published by the state.
effective_date	Date the layoff or closure takes effect (the 60-day WARN default when the state omits it). Empty when the state's date is more than 2 years before or 5 years after notice_date (a source typo).
layoff_count	Number of workers affected, summed across the worksites of one filing. Empty when the state does not publish a count, or publishes a negative one.
closure_category	Normalized type: Closure, Layoff, or Non-WARN (Mississippi Rapid Response events that are not statutory notices). Empty when the source does not say.
company_name	Canonical company name from WARN Index's employer matching (spelling variants of one employer share a name).
naics_code	NAICS industry code of the matched company.
naics_desc	NAICS industry title for naics_code.
city	Worksite city.
county	Worksite county.
zip	Worksite ZIP code.
lat	Worksite latitude from WARN Index geocoding (street, ZIP, city or county precision, best available).
lon	Worksite longitude, see lat.
source_url	State web page the notice was collected from.
raw_notice_url	The notice's own detail page or PDF on the state site, when there is one (state links can go stale).
detail_url	The notice's page on WARN Index.

detail_url links each notice to its page on WARN Index. Superseded duplicates are excluded. Records come from public state filings; company_name is WARN Index's employer matching, the NAICS fields its industry classification, and lat/lon its geocoding. Values that cannot be right are left empty here (a negative layoff_count, or an effective_date more than 2 years before or 5 years after notice_date); the notice page on WARN Index shows the state's original value.

License and attribution

CC BY 4.0. Please credit WARN Index with a link to https://warnindex.com.

Archived snapshots with a citable DOI are on Zenodo: 10.5281/zenodo.23902958 (always the newest version).

@misc{warnindex2026,
  author = {{WARN Index}},
  title = {US Worker Adjustment and Retraining Notification (WARN) Layoff Dataset},
  year = {2026},
  howpublished = {\url{https://warnindex.com}},
  doi = {10.5281/zenodo.23902958}
}