North American Industry Classification System (NAICS) codes, which can range from 2-6 digits, are used by the government to classify businesses for statistical purposes. Use this website to locate NAICS codes.
The U.S. Economic Census is done every 5 years, for years ending in "2" and "7." The most recent data available is from 2012.
To view Industry Snapshots, enter a NAICS code in the search box (e.g., 451211 for book stores). Industry Snapshots provide key statistics such as:
Inside the snapshot, there's also a Compare Your Business to Industry Averages feature.
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.