Iowa Social Security Numbers

Social Security Numbers issued to Iowa fall between 478-##-#### and 485-##-####.

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 >

Iowa SSNs by Year

Within the 478-##-#### to 485-##-#### 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?
478-01-####	1936	1950	87 to 105 yrs	Valid
478-02-####	1981	1982	55 to 60 yrs	Valid
478-03-####	1936	1950	87 to 105 yrs	Valid
478-04-####	1983	unknown	46 to 58 yrs	Valid
478-05-####	1936	1950	87 to 105 yrs	Valid
478-06-####	1984	unknown	45 to 57 yrs	Valid
478-07-####	1936	1950	87 to 105 yrs	Valid
478-08-####	1985	unknown	44 to 56 yrs	Valid
478-09-####	1936	1950	87 to 105 yrs	Valid
478-10-####	1936	1950	87 to 105 yrs	Valid
478-11-####	1986	unknown	43 to 55 yrs	Valid
478-12-####	1936	1950	87 to 105 yrs	Valid
478-13-####	1987	unknown	42 to 54 yrs	Valid
478-14-####	1936	1950	87 to 105 yrs	Valid
478-15-####	1988	unknown	29 to 37 yrs	Valid
478-16-####	1936	1950	87 to 105 yrs	Valid
478-17-####	1989	1992	33 to 36 yrs	Valid
478-18-####	1936	1950	87 to 105 yrs	Valid
478-19-####	1989	1992	33 to 36 yrs	Valid
478-20-####	1936	1950	87 to 105 yrs	Valid
478-21-####	1989	1992	33 to 36 yrs	Valid
478-22-####	1936	1950	87 to 105 yrs	Valid
478-23-####	1993	unknown	24 to 32 yrs	Valid
478-24-####	1936	1950	87 to 105 yrs	Valid
478-25-####	1995	unknown	22 to 30 yrs	Valid
478-26-####	1936	1950	87 to 105 yrs	Valid
478-27-####	1997	1998	27 to 28 yrs	Valid
478-28-####	1936	1950	87 to 105 yrs	Valid
478-29-####	1999	unknown	18 to 26 yrs	Valid
478-30-####	1936	1950	87 to 105 yrs	Valid
478-31-####	2000	2001	24 to 25 yrs	Valid
478-32-####	1936	1950	87 to 105 yrs	Valid
478-33-####	2002	2004	21 to 23 yrs	Valid
478-34-####	1936	1950	87 to 105 yrs	Valid
478-35-####	2004	2006	19 to 21 yrs	Valid
478-36-####	1951	unknown	78 to 90 yrs	Valid
478-37-####	2006	2007	18 to 19 yrs	Valid
478-38-####	1952	unknown	77 to 89 yrs	Valid
478-39-####	2007	2009	16 to 18 yrs	Valid
478-40-####	1953	unknown	76 to 88 yrs	Valid
478-41-####	2009	2011	14 to 16 yrs	Valid
478-42-####	1954	unknown	75 to 87 yrs	Valid
478-43-####	2011	unknown	6 to 14 yrs	Valid
478-44-####	1955	unknown	74 to 86 yrs	Valid
478-46-####	1955	unknown	74 to 86 yrs	Valid
478-48-####	1956	unknown	73 to 85 yrs	Valid
478-50-####	1957	1958	79 to 84 yrs	Valid
478-52-####	1959	1960	77 to 82 yrs	Valid
478-54-####	1961	unknown	68 to 80 yrs	Valid
478-56-####	1962	unknown	67 to 79 yrs	Valid

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