Deferred Action & Social Security Numbers
If your DACA application is approved, you are eligible for a Social Security Number.
Here is the official word on how to apply — after your DACA application is approved. You will need your USCIS work authorization card and your original identity document (like your passport, birth certificate, or state ID).
A useful update from USCIS on how to respond to the Social Security Number questions on the DACA applications: