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	85 to 103 yrs	Valid
478-02-####	1981	1982	53 to 58 yrs	Valid
478-03-####	1936	1950	85 to 103 yrs	Valid
478-04-####	1983	unknown	44 to 56 yrs	Valid
478-05-####	1936	1950	85 to 103 yrs	Valid
478-06-####	1984	unknown	43 to 55 yrs	Valid
478-07-####	1936	1950	85 to 103 yrs	Valid
478-08-####	1985	unknown	42 to 54 yrs	Valid
478-09-####	1936	1950	85 to 103 yrs	Valid
478-10-####	1936	1950	85 to 103 yrs	Valid
478-11-####	1986	unknown	41 to 53 yrs	Valid
478-12-####	1936	1950	85 to 103 yrs	Valid
478-13-####	1987	unknown	40 to 52 yrs	Valid
478-14-####	1936	1950	85 to 103 yrs	Valid
478-15-####	1988	unknown	27 to 35 yrs	Valid
478-16-####	1936	1950	85 to 103 yrs	Valid
478-17-####	1989	1992	31 to 34 yrs	Valid
478-18-####	1936	1950	85 to 103 yrs	Valid
478-19-####	1989	1992	31 to 34 yrs	Valid
478-20-####	1936	1950	85 to 103 yrs	Valid
478-21-####	1989	1992	31 to 34 yrs	Valid
478-22-####	1936	1950	85 to 103 yrs	Valid
478-23-####	1993	unknown	22 to 30 yrs	Valid
478-24-####	1936	1950	85 to 103 yrs	Valid
478-25-####	1995	unknown	20 to 28 yrs	Valid
478-26-####	1936	1950	85 to 103 yrs	Valid
478-27-####	1997	1998	25 to 26 yrs	Valid
478-28-####	1936	1950	85 to 103 yrs	Valid
478-29-####	1999	unknown	16 to 24 yrs	Valid
478-30-####	1936	1950	85 to 103 yrs	Valid
478-31-####	2000	2001	22 to 23 yrs	Valid
478-32-####	1936	1950	85 to 103 yrs	Valid
478-33-####	2002	2004	19 to 21 yrs	Valid
478-34-####	1936	1950	85 to 103 yrs	Valid
478-35-####	2004	2006	17 to 19 yrs	Valid
478-36-####	1951	unknown	76 to 88 yrs	Valid
478-37-####	2006	2007	16 to 17 yrs	Valid
478-38-####	1952	unknown	75 to 87 yrs	Valid
478-39-####	2007	2009	14 to 16 yrs	Valid
478-40-####	1953	unknown	74 to 86 yrs	Valid
478-41-####	2009	2011	12 to 14 yrs	Valid
478-42-####	1954	unknown	73 to 85 yrs	Valid
478-43-####	2011	unknown	4 to 12 yrs	Valid
478-44-####	1955	unknown	72 to 84 yrs	Valid
478-46-####	1955	unknown	72 to 84 yrs	Valid
478-48-####	1956	unknown	71 to 83 yrs	Valid
478-50-####	1957	1958	77 to 82 yrs	Valid
478-52-####	1959	1960	75 to 80 yrs	Valid
478-54-####	1961	unknown	66 to 78 yrs	Valid
478-56-####	1962	unknown	65 to 77 yrs	Valid

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