United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007
The Social Security Administration created these records to track the earnings of US workers and determine benefit entitlements. The publishable index only contains information for deceased individuals and was gathered from all three record types in the collection: applications, deaths, and claims. Each compiled record includes fields for the name of the deceased, social security number, parents' names, gender, birth city and state or country, birth date, and death date.
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About the United States Social Security NUMIDENT Records
This collection contains indexed records created by the United States Social Security Administration between 1936 and 2007. The records were used to track workers’ earnings and determine eligibility for Social Security benefits. The published index includes information for deceased individuals and was compiled from Social Security applications, claims, and death records.
How This Collection Helps With Family History Research
NUMIDENT records are especially useful for identifying twentieth‑century individuals who lived and worked in the United States. These records may help confirm identity, family relationships, and key life events when other records are limited or missing.
Information found in this collection may include:
- Full name of the deceased
- Birth date
- Birthplace (city and state or country)
- Sex
- Names of parents, including the mother’s maiden name when available
- Death date
Social Security Numbers
Although the original Social Security records included Social Security numbers, FamilySearch does not display them in order to protect personal privacy.
Source information
Location of Original Records
National Archives and Records Administration
"United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", Database. FamilySearch. https://familysearch.org : 30 April 2026.
