Illinois Social Security Information
The first 3 digits of Social Security Numbers issued in Illinois fall between 318 and 361.
In 2013 there was a population of 12,882,000 people in Illinois and 16.6% receive Social Security benefits. There were 1,744,000 people over the age of 65 and 88.8% of them receive Social Security benefits. 2013 is the most recent year for which we have reliable data.
Not all numbers in this range have been issued. Click to Verify Social Security Numbers or to Lookup Social Security Numbers by Year. Learn more about Decoding Social Security Numbers. It is important to remember that this is where the number was issued - not necessarily where the recipient was born.