How many H-1B filings are in this database?
8,429,818 certified H-1B labor condition applications, with 16,120,808 worker requests, across 371,173 employers in Department of Labor disclosure records. Worker requests are not unique workers or confirmed hires. Inspect the filing records and source coverage for the available history.
What does the estimated wage gap measure?
$144.3B in estimated wages below the BLS median across certified filings. Denied filings carry a separate $2.68B estimated gap. These comparisons use offered wages and occupational benchmarks. They do not measure verified unpaid wages or establish why DOL denied a filing.
What does the modeled displacement total measure?
The total is about 19,674,319 modeled worker equivalents. One worker equivalent is the model's base contribution for one position requested in a certified H-1B filing. The total is not a count of unique people or worker-years. A wage offer 20% below the BLS occupation median adds 0.2 equivalents for that position. The total adds records across the available filing history. It does not multiply positions by the length of a visa or job. Renewals, amendments, and repeated filings can represent the same person more than once. The records do not identify every worker, so the model cannot count unique people. The model also adds layoff counts from matched WARN notices. This is not a count of verified layoffs or confirmed H-1B hires. Read the displacement method for the formula and an example.
Why does California lead the state rankings?
California has the largest number of worker requests in the site's certified H-1B filing aggregate. This ordering does not establish which state has the most filings or confirmed hires. Its state page shows employers, occupations, offered wages, and linked layoff notices.
Where does all this data come from?
Public government disclosures: DOL OFLC filing records, BLS wage benchmarks, WARN layoff notices, USAspending and state contract awards, and HRSA health-workforce files. Every number on the site traces to an archived source document with hash-verified provenance.