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About the Annual Survey of Manufactures


The Annual Survey of Manufactures (ASM) provides sample estimates of statistics for all manufacturing establishments with one or more paid employee.

  • Conducted annually, except for years ending in 2 and 7, at which time ASM statistics are included in the manufacturing sector of the Economic Census.
  • The economic census manufacturing sector is the universe from which the ASM sample frame is selected and provides more detailed statistics.
  • Provides statistics on employment, payroll, supplemental labor costs, cost of materials consumed, operating expenses, value of shipments, value added by manufacturing, detailed capital expenditures, fuels and electric energy used, and inventories.


To provide key intercensal measures of manufacturing activity, products, and location for public and private sector use. The ASM provides the best current measure of current U.S. manufacturing industry outputs, inputs, and operating status, and is the primary basis for updates of the Longitudinal Research Database (LRD). Census Bureau staff and academic researchers with sworn agent status use the LRD for micro data analysis.


Manufacturing establishments with one or more paid employees or nonemployers that use leased employees for manufacturing are classified in NAICS sector 31-33.


The ASM provides statistics on employment, payroll, worker hours, payroll supplements, cost of materials, selected operating expenses, value added by manufacturing, capital expenditures, inventories, and energy consumption. It also provides estimates of value of shipments for approximately 3,500 products manufactured, as defined by the North America Product Classification System (NAPCS).


The ASM is conducted annually, except for years ending in 2 and 7, at which time ASM data are included in the manufacturing sector of the Economic Census.


 The ASM is a sample survey of approximately 50,000 establishments. The initial 2019 sample was selected using a sample frame based on information from the Manufacturing portion of the 2017 Economic Census, which included records for approximately 291,576 active manufacturing establishments. Approximately 16,621 establishments were selected with certainty based on ad hoc criteria designed to ensure the inclusion of specified establishment groups in the sample. The remaining establishments were selected with probability proportional to a composite measure of establishment size. The initial 2019 sample was supplemented with records for new manufacturing establishments that were not included in the 2017 Economic Census but were identified on the Census Bureau's Business Register for the 2018 processing year. The ASM sample is updated annually from two sources that are input to the Business Register; administrative records from the Internal Revenue Service are used to identify new single-establishment manufacturers, and the Company Organization Survey is used to identify new manufacturing establishments of multi-establishment companies.


Most data are available from the Internet. The principal publications are:

  • Statistics for Industry Groups and Industries: displays U.S. statistics at the 2-through 6-digit NAICS code levels.
  • Geographic Area Statistics: Statistics for All Manufacturing: displays data for the U.S. and States at the 2-through 4-digit NAICS code levels.
  • Geographic Area Statistics: Supplemental Statistics: displays data for the U.S. and States at the 2-digit NAICS code level.
  • Industry-Product Analysis: displays U.S. data at the 2-through 6-digit NAICS code levels for Products as currently defined in the NAPCS structure.

Targeted release dates are 12 months from the end of the reference period.


Bureau of Economic Analysis uses ASM data to prepare annual updates of the GNP and GNP weight deflators, the annual input-output (I/O) tables, and to the private inventories, producer’s equipment and software components (PES) of the gross domestic product (GDP).

Bureau of Labor Statistics uses ASM data to calculate annual productivity series, updating producer price indexes, and calculate weights when new components are added.

Federal Reserve Board uses ASM data to prepare the Index of Industrial Production.

The Census Bureau benchmarks current data on manufacturing shipments and inventories.

State and local agencies use ASM data for economic policymaking and forecasting.


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