The Social Security retirement age chart can be found on the office of Social Security website. The chart shows the retirement age for those born before or in 1937 until 1960 or later.
The official retirement age in the United States is 66, as of February, 2015. This is when the person enjoys the full perks of Social Security. In the United States, a person is allowed to retire at 62, but he would only enjoy partial Social Security benefits until he reaches the full retirement age. The amount of money he receives every month at 62 will be dependent on the year of his birth.
If a person were to retire early, he gets a monthly income that is smaller compared to that of retiring at a later stage. But, the monthly income is given over a longer period of time.