The U.S. Economic Census is done every 5 years, for years ending in "2" and "7." The most recent data are from 2017.
See the Economic Census: Manufacturing Data.
To see Industry Data, enter a NAICS code in the search box (713940 for gyms, for example). Industry Snapshots provide key statistics such as:
|Number of establishments in an industry||
Payroll per employee
|Revenue||Employees per establishment|
A map showing where sales, establishments,
Inside a snapshot, there's also a "Compare Your Business" link, where you can get comparisons to industry averages. (Look for the magnifying glass in the upper right of the snapshot.)
County Business Patterns provide economic data by industry. Data include the number of establishments, employment, first quarter payroll, and annual payroll.
For information on businesses without paid employees (e.g., sole proprietorships), see Nonemployer Statistics. Data consist of the number of businesses and total receipts by industry.