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	28 to 36 yrs	Valid
329-82-####	1989	1992	32 to 35 yrs	Valid
329-84-####	1989	1992	32 to 35 yrs	Valid
329-86-####	1989	1992	32 to 35 yrs	Valid
329-88-####	1993	unknown	23 to 31 yrs	Valid
329-90-####	1994	unknown	22 to 30 yrs	Valid
329-92-####	1996	unknown	20 to 28 yrs	Valid
329-94-####	1997	1998	26 to 27 yrs	Valid
329-96-####	1999	unknown	17 to 25 yrs	Valid
329-98-####	2001	unknown	15 to 23 yrs	Valid
330-01-####	1936	1950	86 to 104 yrs	Valid
330-02-####	2003	2004	20 to 21 yrs	Valid
330-03-####	1936	1950	86 to 104 yrs	Valid
330-04-####	2004	2006	18 to 20 yrs	Valid
330-05-####	1936	1950	86 to 104 yrs	Valid
330-06-####	2006	2008	16 to 18 yrs	Valid
330-07-####	1936	1950	86 to 104 yrs	Valid
330-08-####	2008	2010	14 to 16 yrs	Valid
330-09-####	1936	1950	86 to 104 yrs	Valid
330-10-####	1936	1950	86 to 104 yrs	Valid
330-11-####	2010	2011	13 to 14 yrs	Valid
330-12-####	1936	1950	86 to 104 yrs	Valid
330-14-####	1936	1950	86 to 104 yrs	Valid
330-16-####	1936	1950	86 to 104 yrs	Valid
330-18-####	1936	1950	86 to 104 yrs	Valid
330-20-####	1936	1950	86 to 104 yrs	Valid
330-22-####	1936	1950	86 to 104 yrs	Valid
330-24-####	1936	1950	86 to 104 yrs	Valid
330-26-####	1936	1950	86 to 104 yrs	Valid
330-28-####	1951	1952	84 to 89 yrs	Valid
330-30-####	1953	1954	82 to 87 yrs	Valid
330-32-####	1955	1956	80 to 85 yrs	Valid
330-34-####	1957	1959	77 to 83 yrs	Valid
330-36-####	1960	1961	75 to 80 yrs	Valid
330-38-####	1962	unknown	66 to 78 yrs	Valid
330-40-####	1963	unknown	65 to 77 yrs	Valid
330-42-####	1964	unknown	64 to 76 yrs	Valid
330-44-####	1965	1966	70 to 75 yrs	Valid
330-46-####	1967	unknown	61 to 73 yrs	Valid
330-48-####	1968	unknown	60 to 72 yrs	Valid
330-50-####	1969	1970	66 to 71 yrs	Valid
330-52-####	1971	unknown	57 to 69 yrs	Valid
330-54-####	1972	unknown	56 to 68 yrs	Valid
330-56-####	1973	unknown	55 to 67 yrs	Valid
330-58-####	1973	1974	62 to 67 yrs	Valid
330-60-####	1975	unknown	53 to 65 yrs	Valid
330-62-####	1976	unknown	52 to 64 yrs	Valid
330-64-####	1976	unknown	52 to 64 yrs	Valid
330-66-####	1977	unknown	51 to 63 yrs	Valid
330-68-####	1978	1979	57 to 62 yrs	Valid

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