The Longitudinal Employer-Household Dynamics (LEHD) data at the U.S. Census Bureau is a quarterly database of linked employer-employee data covering over 95% of employment in the United States. The LEHD data are generated by merging previously collected survey and administrative data on jobs, businesses, and workers. Data are derived from various Federal sources as well as state data voluntarily provided through the Local Employment Dynamics (LED) partnership.
The Job-level tables provide the earnings history of workers at state-level firms (SEINs) for jobs that are covered by unemployment insurance. The range of quarters available will vary by state.

Longitudinal Employer-Household Dynamics (LEHD) Job-level Files

Longitudinal Employer-Household Dynamics (LEHD)

The Longitudinal Employer-Household Dynamics (LEHD) data at the U.S. Census Bureau is a quarterly database of linked employer-employee data covering over 95% of employment in the United States. The LEHD data are generated by merging previously collected survey and administrative data on jobs, businesses, and workers. Data are derived from various Federal sources as well as state data voluntarily provided through the Local Employment Dynamics (LED) partnership.
The Employer-level data provides establishment characteristics including geography, industry, ownership, and establishment size. Establishments are components of a statewide employer (SEIN), which can be linked to job-level earnings data. Various measures of employment dynamics and earnings, such as accessions, separations, and job flows, are also provided at the establishment level. These measures serve as the microdata for the public use Quarterly Workforce Indicators (QWI). The employer data package also includes the Successor-Predecessor File (SPF), which provides information on employer identifier changes that may result from various administrative events.

Longitudinal Employer-Household Dynamics (LEHD) Employer-level Files

The Longitudinal Employer-Household Dynamics (LEHD) data at the U.S. Census Bureau is a quarterly database of linked employer-employee data covering over 95% of employment in the United States. The LEHD data are generated by merging previously collected survey and administrative data on jobs, businesses, and workers. Data are derived from various Federal sources as well as state data voluntarily provided through the Local Employment Dynamics (LED) partnership.
The Employer-level T26 tables contain information on the national firm, including Firm ID, Federal EIN, firm age, and firm size, and is sourced from Federal Tax Information (FTI).

Longitudinal Employer-Household Dynamics (LEHD) Employer-level Files Title 26 Components

The Longitudinal Employer-Household Dynamics (LEHD) data at the U.S. Census Bureau is a quarterly database of linked employer-employee data covering over 95% of employment in the United States. The LEHD data are generated by merging previously collected survey and administrative data on jobs, businesses, and workers. Data are derived from various Federal sources as well as state data voluntarily provided through the Local Employment Dynamics (LED) partnership.
The Person-level demographics tables contain characteristics of workers found in earnings data, including date of birth, place of birth, sex, race, ethnicity, and education. Observed characteristics are sourced from decennial Censuses and surveys, as well as Social Security Administration data. Characteristics that are not observed are completed through an imputation process.

Longitudinal Employer-Household Dynamics (LEHD) Person-level Files Demographic Components

The Longitudinal Employer-Household Dynamics (LEHD) data at the U.S. Census Bureau is a quarterly database of linked employer-employee data covering over 95% of employment in the United States. The LEHD data are generated by merging previously collected survey and administrative data on jobs, businesses, and workers. Data are derived from various Federal sources as well as state data voluntarily provided through the Local Employment Dynamics (LED) partnership.
The Person-level residence table contains up to one place of residence per year for all workers observed in the earnings data. The place of residence is derived from a variety of administrative records.

Longitudinal Employer-Household Dynamics (LEHD) Person-level Files Residence Components

The Administrative Data Research Facility (ADRF) is a secure cloud-based computing platform designed to promote collaboration, facilitate documentation, and provide information about data use to the agencies that own the data. The ADRF has provided secure access to over 100 confidential government datasets from 50 different agencies at all levels of government. More information on ADRF is available at https://coleridgeinitiative.org/adrf/.

Remote access to restricted-use data at the authorized licensed location via the the Administrative Data Research Facility (ADRF) by a connected, networked computer.  

Researchers may access restricted-use National Center for Health Statistics (NCHS) data at Research Data Centers (RDCs) located in Hyattsville, MD, Atlanta, GA, Rockville, MD, and Washington DC (government employees only). The NCHS RDCs are open by appointment only during regular business hours. The NCHS RDC computers are not connected to the Internet, and they have standard statistical software. An RDC Analyst will review all materials brought into the RDC and will review any notes, code, or output the researcher may want to take out of the RDC. Electronic devices (e.g., cell phones and laptops) are not permitted in the RDC. Some NCHS projects are authorized to access NCHS data at Federal Statistical RDCs (FSRDC). Non-US Citizens: In general, non-US citizens are not granted access to NCHS RDCs and are encouraged to use Federal Statistical RDCs to access restricted-use NCHS data.

Access via physical data enclaves in Atlanta, GA; Hyattsville, MD; Rockville, MD; or Washington, DC (government employees only).

NCSES Secure Data Access Facility (SDAF) houses NCSES restricted-use data and provides secure remote access to researchers. After researchers have submitted a restricted-use data application, received approval from NCSES, and have been trained on how to use the SDAF, they can login using an approved computer and a private internet connection. Each researcher has access to their own, personal file space and to a suite of software that can be used to store, access, and analyze data. For more information on accessing NCSES restricted-use data, please visit https://ncses.nsf.gov/about/licensing. 

The NCSES Secure Data Access Facility is a virtual data enclave where approved researchers access NCSES restricted-use data.

USDA offers offsite remote access via a secure internet connection using the researcher’s own computer and web browser to approved datasets for data analysis within the Data Enclave. Each researcher has access to their own personal file space and to a suite of software that can be used to store, access, and analyze data.

Remote access through a virtual data enclave.

Access via a physical data enclave at the Social Security Administration in Washington, DC.

The ICPSR physical data enclave is located in the Perry Building on the campus of the University of Michigan.

Access via the physical data enclave at ICPSR in Ann Arbor, MI.

The ICPSR virtual data enclave allows users access to restricted data via their own computers using a virtual desktop. 

Remote access through ICPSR`s virtual data enclave.

Data can be used by the researcher(s) at their institutions via a method and following requirements set by the agency owning the data. These might include a non-networked computer, a secure office, or other provisions deemed necessary to ensure security.

Data can be used at the user`s institution following the license agreement.

Researchers share four secure workstations at BEA’s headquarters at the Suitland Federal Center in Suitland, MD. Workstation use is by appointment only. Due to pandemic-related restrictions that currently prevent access at the physical data enclave, BEA is temporarily providing access at the user`s domicile. A security clearance is required to access the BEA network. 

Access via a physical enclave at BEA`s headquarters in Suitland, MD.

BLS Onsite access is available in a researcher room at the BLS national office in Washington, DC.  Researchers with approved projects can reserve time during normal business hours to use BLS workstations connected to an internal server where all data and project files are stored.  More information is available at www.bls.gov/rda/onsite-at-bls.htm. 

Access via a designated researcher room at the BLS national office in Washington, DC.

BLS offers offsite limited remote access to restricted data through a Virtual Data Enclave for two survey files:  NLSY Geocode and CFOI-Masked data.  More information is available at www.bls.gov/rda/offsite.htm. 

Remote access to limited restricted-use data through a virtual data enclave. 

Federal Statistical Research Data Centers (FSRDCs) are Census Bureau facilities, housed in partner institutions, that meet all physical and information security requirements for access to restricted–use micro data of the agencies whose data are accessed there. Remote access via secure Virtual Desktop Interface (VDI) is permitted for researchers working with selected data, at the discretion of the data-owning agency. All FSRDC researchers must obtain the Census Bureau`s Special Sworn Status and successfully complete a thorough background investigation prior to accessing an RDC.

Federal Statistical Research Data Centers (FSRDCs) are Census Bureau facilities, housed in partner institutions, that meet all physical and information security requirements for access to restricted–use micro data of the agencies whose data are accessed there.

Remote access to the IRS network via a secure VPN line using a government laptop issued and configured by IRS IT.

Remote access to the IRS network via secure VPN line using government laptop issued and configured by IRS IT.

Access at IRS Headquarters, Submission Processing Center, or other satellite (field) offices.

Title	Last Modified
Longitudinal Employer-Household Dynamics (LEHD) Job-level Files RDG 7437 Census Bureau	09-09-2024
Longitudinal Employer-Household Dynamics (LEHD) Employer-level Files RDG 7439 Census Bureau	09-09-2024
Longitudinal Employer-Household Dynamics (LEHD) Employer-level Files Title 26 Components RDG 7436 Census Bureau	09-09-2024
Longitudinal Employer-Household Dynamics (LEHD) Person-level Files Demographic Components RDG 7456 Census Bureau	11-06-2024
Longitudinal Employer-Household Dynamics (LEHD) Person-level Files Residence Components RDG 7438 Census Bureau	11-06-2024

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