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DATA
The Triangle Census Research Data Center (TCRDC) provides access to Census micro data for approved research projects (see proposal guidelines). These data sets are not a regular part of the Census Bureau data dissemination program. A detailed listing of available data sets is provided at the CES Data link which includes links to documentation and survey sponsors. Further information on the contents of the data sets listed can be found at the Census web page (www.census.gov). Researchers need to consult with a TCRDC Administrator on availability of particular data sets before writing research proposals.
Three groups of data sets are available:
Economic Data: Censuses and surveys of business establishments and firms. With very few exceptions, no public use files exist for these surveys.
Demographic Data: Censuses and surveys of households and individuals. These data are not public use files. Include complete geography (in many cases down to the block). Items such as income are not top coded. Individual identifiers such as name, address, and social security numbers are not included.
Heath Data: Data sets available from Agency for Healthcare Research and Quality, and National Center for Health Statistics. These data are not public use files.
Other Information: Surveys conducted by the Census Bureau for other agencies may be available with the permission of the sponsoring agency.
Examples of work performed in the RDC system can be found at the CES Working Paper Series.
Software available to researchers in a RDC include SAS, Stata, Gauss and GeoDa.
Individuals or organizations seeking statistics or public use data sets should visit the Census Bureau website.
Economic Data
| Database Name | Survey Unit | Frequency | Time Periods Available | Number of Observations | Description | Sponsor | Sector |
| Annual Capital Expenditures Survey (ACE) / Information and Communication Technology (ICT) | Enterprise(firm) | Annual | 1993-2003 |
45,000 - 60,000 per year | Industry-level data on capital investment in new and used structures and equipment. | Bureau of the Census | Business |
| Annual Survey of Manufacturers | Establishment | Annual | 1973-2005 |
55,000-70,000 per year | Collects 5-digit product detail | Bureau of the Census | Business |
| Assets and Expenditures Survey | Taxable Entity | 1992 | 60,000 firms and EINs | This is the predecessor of the Business Expenditures Survey(BES) and starting in 1997 can only be found under the BES. | Business | ||
| Auxiliary Establishment | Establishment | Every 5 years | 1977, 1982, 1987, 1992, 1997 | 30,000-40,000 per year | Auxiliary establishment geography, cost, and employment data | Bureau of the Census | Business |
| Business Expenditures Survey | Establishment | 1997 | 60,000 firms and EINs | Formerly the Assets and Expenditures Survey(AES). Data collected on operating expenses - fringe benefits, fees, computer expenses, etc | Business | ||
| Census of Construction Industries | Establishment | Every 5 years | 1972, 1977, 1982, 1987, 1992 | Business | |||
| Census of Finance, Insurance, and Real Estate | Establishment | Every 5 years | 1992, 1997, 2002 |
656,000-696,0000 | Census of establishments primarily engaged in transactions involving the creation, liquidation, or change in ownership of financial assets | Business | |
| Census of Manufacturers | Establishment | Every 5 years | 1963, 1967, 1972, 1977, 1982, 1987, 1992, 1997, 2002 | 300,000-400,000 per year | Collects 7-digit product detail | Bureau of the Census | Business |
| Census of Mining | Establishment | Every 5 years | 1987, 1992, 1997 | 25,000-35,000 | Information about structure and function of mining sector. | Business | |
| Census of Retail Trade | Establishment | Every 5 years | 1977, 1982, 1987, 1992, 1997, 2002 | 1.4-1.7 million | Domestic establishments with payroll that retail merchandise, generally without transformation, and related services. | Business | |
| Census of Services | Establishment | Every 5 years | 1977, 1982, 1987, 1992, 1997 | Business | |||
| Census of Transportation, Communications, and Utilities | Establishment | Every 5 years | 1987, 1992, 1997, 2002 | 166,000-273,000 | Information about the Transportation, Communications, and Utilities industries | Business | |
| Census of Wholesale Trade | Establishment | Every 5 years | 1977, 1982, 1987, 1992, 1997, 2002 | 399,000-530,000 | Establishments engaged in wholesaling merchandise. | Business | |
| Commodity Flow Survey | Shipment Record | 1993 | 10 million shipments from 140,000 establishments | Volume and weight of shipments between zip codes | Department of Transportation | Business | |
| Compustat-SSEL Bridge | Enterprise(firm) | 2001 | Over 115,000 firm year records | The March 2001 Compustat file is linked to the 1981-2001 SSEL, providing firm level linkage. | Business | ||
| Enterprise Summary Report | Establishment | Every 5 years | 1977, 1982, 1987, 1992 | 6,200-11,000 | Large company statistics inlcuding number of establishments, employees, annual payroll, sales and receipts, and some financial characteristics | Business | |
| Exporter Database | Establishment | Annual | 1987, 1992, 1996-2004 | Information about the exporting community including employment size, type of company, and major foreign markets. | Multiple | ||
| Foreign Trade Data - Export | Transaction | Annual | 1992-2005 | 24 million | U.S. exports of merchandise from the U.S. to all countries, except Canada, compiled from copies of Shipper's Export Declarations (SEDs). | Multiple | |
| Foreign Trade Data - Import | Transaction | Annual | 1992-2005 | 47 million | U.S. imports of merchandise, compiled primarily from automated data submitted through the U.S. Customs' Automated Commercial System. | Multiple | |
| Large Company Survey | Firm | Every 5 years | 1977, 1982, 1987, 1992 | 6,000-7,000 per year | Large firm geography, cost, and output data | Bureau of the Census | Business |
| Longitudinal Business Database | Establishment | Annual | 1976-2005 | 24 million unique establishments | All US business establishments with paid employees from 1976 to present | Business | |
Longitudinal Employer Household Dynamics (LEHD)LEHD-BRBLEHD Business Register Bridge |
Establishment | Quarterly | 1990-2004 | 3 million- 7million | Full list of establishments Business Register associated with the business units in the crosswalk and measures of activity (e.g., employment, sales) |
Bureau of the Census | Business |
LEHD-ECFLEHD Employer Characteristics File |
Establishment | Quarterly | 1989-2004 | Several million establishments from 32 states (as of 2007) |
consolidates most firm level information (size, location, industry, etc.) |
Bureau of the Census | Business |
LEHD-QWILEHD Employer Quarterly Workforce Indicators |
Establishment | Quarterly | 1990-2003 | Approximately 4 million establishments from more than 20 states. |
Quarterly measures of workforce composition and worker turnover |
Bureau of the Census | Business |
LEHD-GALLEHD Geocoded Address List |
Establishment | Irregular | 1990-2005 | Varies by state |
Contains unique commercial and residential addresses in a state geocoded to the Census Block and latitude/longitude coordinates |
Bureau of the Census | Business |
| Manufacturing Energy Consumption Survey | Establishment | 1985, 1988, 1991, 1994, 1998, 2002 | 10,000+ (ASM subsample) | Quantity, value of 15 fuel types; short run fuel switching capability | Department of Energy | Business | |
| Medical Expenditure Panel Survey - Insurance Component | Establishment | Annual | 1996-2004 | 25,000 per year | Collects data on health insurance plans obtained through employers. | Bureau of the Census | Business |
| National Employer Survey | Establishment | 1994, 1996, 1997, 1998, 2000 | 1994: 3,000 establishments 1997: 5,500 establishments | Employer practices and expectations concerning education and training, and workforce quality. | Department of Education | Business | |
| Owner Change Database | Establishment | Every 5 years | 1963, 1967, 1972, 1977, 1982, 1987 | 7,200-21,000 | Tracks change in ownership of manufacturing establishments between consecutive census years. | Business | |
| Quarterly Financial Report | Firm | Annual | 1977-91 | 15,000 per quarter | Balance sheet and income statement data | Bureau of the Census | Business |
| Standard Statistical Establishment List | Establishment | Annual | 1975-2005 | ~7 million employers; ~17 million non-employers (1997) | Business register - economic survey universe; underlies longitudinal links | Bureau of the Census | Business |
| Survey of Industrial Research and Development | Firm | Annual | 1973-2003 | 2,000 firms per year | Research and development expenditures | Bureau of the Census | Business |
| Survey of Manufacturing Technology | Establishment | 1988, 1991, 1993 | 10,000 | Use of 17 advanced manufacturing technologies | Bureau of the Census | Business | |
| Survey of Plant Capacity Utilization | Establishment | Annual | 1974-1999 | 17,000 | Current data on the rates of capacity utilization in U.S. manufacturing plants. | Business | |
| Survey of Pollution Abatement Costs and Expenditures | Establishment | 1974-78, 1979-82, 1984-86, 1988-94, 1999 | 16,500-21,000 | Operating and capital expenditures on pollution abatement | Bureau of the Census | Business |
Demographic Data
| Database Name | Survey Unit | Frequency | Time Periods Available | Number of Observations | Description | Sponsor |
| American Community Survey | Household | Annual | 1996-2005 | Varies by year; by 2003, 3 million households will be surveyed annually | Annual updates of the social, economic, and housing characteristics of the population | Bureau of the Census |
| American Housing Survey - Metropolitan Survey | Household | Biennial | Even-numbered years; rotating sample of metropolitan areas | Approx. 55,000 households in 41 metropolitan areas; each area surveyed every six years | Characteristics of housing units and their occupants | Department of Housing and Urban Development |
| American Housing Survey - National | Household | Annual | 1984-2005 | Approx. 55,000 households | Characteristics of housing units and their occupants | Department of Housing and Urban Development |
| CPS Annual Demographics Survey (March Supplement) | Household | Annual | March 1967-2005 | 59,500 households | Work experience, sources of income, migration, household composition, health insurance coverage, and receipt of noncash benefits | Bureau of the Census, Bureau of Labor Statistics |
| Decennial Census Long Form Data | Household | 1990, 2000 | One-in-six households | Social, economic, and housing characteristics of the population | Bureau of the Census | |
| National Longitudinal Survey | Household | Annual | 1966-1999, depending on cohort | Approximately 5,000 | Contains state and county FIPS codes for all cohorts and some additional geographic and higher education information for the young and mature womens cohorts. | Bureau of Labor Statistics |
| Survey of Income and Program Participation | Household | Longitudinal panels | 1984-1993, 1996 | Sample sizes (by panel) range from 14,000 to 37,000 households | Economic situation of households including source and amount of income, labor force information, program participation and eligibility, and general demographic characteristics | Bureau of the Census |
| Survey of Program Dynamics | Household | Annual interviews | 1992-1993 SIPP panel households | 1997:35,000 households 1998-2002: 18,500 households | This survey follows former SIPP respondents to measure the effects of welfare reform | Bureau of the Census |
National Center for Health Statistics (NCHS)
- Many different datasets available please visit the following link for more detailed information http://www.cdc.gov/nchs/data/NCHS_Survey_Matrix.pdf
Agency for Healthcare Research and Quality (AHRQ)
- Medical Expenditure Panel Survey (MEPS)
- Please visit the following link for more detailed information http://www.meps.ahrq.gov/mepsweb/data_stats/onsite_datacenter.jsp
