Unemployment rate: methodology
Provenance for the series on Unemployment rate. This page has its own URL so it can be cited alongside a figure.
- Dataset identifier
- laus_unemployment_rate
- Update cadence
- Monthly, ~3 week lag
- Unit
- percent
- Coverage
- 18 series · 1990-01-01 to 2026-09-01
- Vintage published here
- 2026-10-29
Monthly labor force statistics from the Bureau of Labor Statistics Local Area Unemployment Statistics (LAUS) program, requested directly from the BLS public API as published — not seasonally adjusted, and not recomputed here.
Revisions. LAUS restates the prior year each spring when BLS applies its annual benchmark. We do not overwrite what was published before: each run stores its values under a new vintage, so a figure cited last month remains retrievable.
Known gaps. County series begin in 1990. Values are model-based estimates for counties below the CPS sample threshold, which is most of Nevada outside Clark and Washoe; treat small-county month-to-month moves with care.
October 2025 is permanently missing. The lapse in federal appropriations
suspended the Current Population Survey that month. The household survey cannot
be conducted retroactively, so BLS will never publish an October 2025 figure for
any area. We store the period with a null value flagged unavailable rather
than dropping the month or interpolating across it: a gap in the chart is the
honest representation. Any series you build from this data should expect that
hole and not treat it as a zero.
Revisions and vintages
Every observation we store carries the date it was published, and a revision lands as a new vintage rather than overwriting the old one. The figures on this site are the most recent vintage, stamped above; a figure you cited earlier stays retrievable even after the source restates it.
The full series, including the flag and vintage of every value, is in the CSV.