Industry classification of businesses in the County Business Patterns is according to the current 2012 North American Industry Classification System (NAICS), which includes nearly 1,200 industries. For more information on the 2012 NAICS codes, as well as comparisons between the 2012 and 2007 codes, visit the NAICS website. NAICS codes are updated every five years.
The primary source of industry classification is derived from data collected through the Economic Census or through other Census surveys. When this is not available, the Census Bureau uses a hierarchy of administrative record sources to assign a NAICS code, including classifications from the Bureau of Labor Statistics, business birth information, and self-assigned codes from income tax records.
For a small percentage of records, only a partial classification is possible from all sources. For these cases, a complete industry classification is assigned, or imputed, by using a "nearest neighbor" assignment process that assigns the NAICS from an establishment with similar payroll, employment and organizational type with possible constraints. Analysts review the assignments to ensure that anomalies do not occur at the county level. For some multi-unit establishments with a partial classification, a complete code is imputed from another establishment within the same company. The imputation rate for complete codes varies widely during the five-year Economic Census processing cycle, but generally affects small businesses. Completely unclassified records are an even smaller percentage and are tabulated and published separately.
The County Business Patterns series includes the following NAICS sectors:
||Forestry, Fishing and Hunting, and Agricultural Support Services (NAICS 113-115)
||Transportation and Warehousing
||Finance and Insurance
||Real Estate and Rental and Leasing
||Professional, Scientific, and Technical Services
||Management of Companies and Enterprises
||Administrative and Support and Waste Management and Remediation Services
||Health Care and Social Assistance
||Arts, Entertainment, and Recreation
||Accommodation and Food Services
||Other Services (except Public Administration)
||Industries Not Classified