Industry & Establishments

This database contains industries by the number of employees for each establishment.  Establishments are organzied by industry as defined by the North American Industry Classification System (NAICS). The Census Bureau provides more details on NAICS here.  Establishment data cover most of the country's economic activity but excludes data on self-employed individuals, employees of private households, railroad employees, agricultural production employees, and most government employees. 

Data are available for the United States, states, counties, cities, and all ZIP Codes reported by the U.S. Postal Service.  City totals reflect the sum of all associated ZIP Codes, i.e., Standard ZIP Codes with physical addresses plus P.O. Box only ZIP Codes that are associated with the city. P.O. Box only ZIP codes are used for addresses that only receive mail at a post office box, and not at a physical address.  In most cases, P.O. Box-only ZIP Codes report zero or a neglibible number of establishments.   A physical ZIP Code may contain areas that are not within city boundaries, overstating totals for the city.