As a Green Card holder, will I get a social security number?

As a permanent resident, you can get a Social Security number (SSN). A Social Security number is a number assigned to you by the United States government. It helps the government keep track of your earnings and the benefits you can get, and it is also used by banks and other agencies, such as schools, to identify you. For instance, you may be asked for your SSN when you rent an apartment or buy a home.