Illinois Social Security Numbers

Social Security Numbers issued to Illinois fall between 318-##-#### and 361-##-####.

Use the SSN Search Tool to check individual Social Security Numbers.

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About this Data

SSNs issued before June 25, 2011 are linked to where the number was issued which is often the same as where the cardholder was born. After 2011, SSN issuance was randomized. Not every SSN in the range above is necessarily valid. Learn More >

Illinois SSNs by Year

Within the 318-##-#### to 361-##-#### group, the 4th and 5th digits indicate when a number was issued.

Social Security Number	First Year Issued	Last Year Issued	Estimated Age of Cardholder	Valid SSN?
329-80-####	1988	unknown	30 to 38 yrs	Valid
329-82-####	1989	1992	34 to 37 yrs	Valid
329-84-####	1989	1992	34 to 37 yrs	Valid
329-86-####	1989	1992	34 to 37 yrs	Valid
329-88-####	1993	unknown	25 to 33 yrs	Valid
329-90-####	1994	unknown	24 to 32 yrs	Valid
329-92-####	1996	unknown	22 to 30 yrs	Valid
329-94-####	1997	1998	28 to 29 yrs	Valid
329-96-####	1999	unknown	19 to 27 yrs	Valid
329-98-####	2001	unknown	17 to 25 yrs	Valid
330-01-####	1936	1950	88 to 106 yrs	Valid
330-02-####	2003	2004	22 to 23 yrs	Valid
330-03-####	1936	1950	88 to 106 yrs	Valid
330-04-####	2004	2006	20 to 22 yrs	Valid
330-05-####	1936	1950	88 to 106 yrs	Valid
330-06-####	2006	2008	18 to 20 yrs	Valid
330-07-####	1936	1950	88 to 106 yrs	Valid
330-08-####	2008	2010	16 to 18 yrs	Valid
330-09-####	1936	1950	88 to 106 yrs	Valid
330-10-####	1936	1950	88 to 106 yrs	Valid
330-11-####	2010	2011	15 to 16 yrs	Valid
330-12-####	1936	1950	88 to 106 yrs	Valid
330-14-####	1936	1950	88 to 106 yrs	Valid
330-16-####	1936	1950	88 to 106 yrs	Valid
330-18-####	1936	1950	88 to 106 yrs	Valid
330-20-####	1936	1950	88 to 106 yrs	Valid
330-22-####	1936	1950	88 to 106 yrs	Valid
330-24-####	1936	1950	88 to 106 yrs	Valid
330-26-####	1936	1950	88 to 106 yrs	Valid
330-28-####	1951	1952	86 to 91 yrs	Valid
330-30-####	1953	1954	84 to 89 yrs	Valid
330-32-####	1955	1956	82 to 87 yrs	Valid
330-34-####	1957	1959	79 to 85 yrs	Valid
330-36-####	1960	1961	77 to 82 yrs	Valid
330-38-####	1962	unknown	68 to 80 yrs	Valid
330-40-####	1963	unknown	67 to 79 yrs	Valid
330-42-####	1964	unknown	66 to 78 yrs	Valid
330-44-####	1965	1966	72 to 77 yrs	Valid
330-46-####	1967	unknown	63 to 75 yrs	Valid
330-48-####	1968	unknown	62 to 74 yrs	Valid
330-50-####	1969	1970	68 to 73 yrs	Valid
330-52-####	1971	unknown	59 to 71 yrs	Valid
330-54-####	1972	unknown	58 to 70 yrs	Valid
330-56-####	1973	unknown	57 to 69 yrs	Valid
330-58-####	1973	1974	64 to 69 yrs	Valid
330-60-####	1975	unknown	55 to 67 yrs	Valid
330-62-####	1976	unknown	54 to 66 yrs	Valid
330-64-####	1976	unknown	54 to 66 yrs	Valid
330-66-####	1977	unknown	53 to 65 yrs	Valid
330-68-####	1978	1979	59 to 64 yrs	Valid

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