At this day of 8/1/11 there are four living retired presidents- two Bushes, Carter and Clinton.
Widows of presidents are entitled to $20,000 per year in pension.
The US Secret Service provides protection for retired Presidents as part of their mandate to protect former Presidents and their families. This protection is offered for the lifetime of the former President, unless they decline it after leaving office. The purpose is to ensure the security and safety of the former Presidents and their immediate family members.
From Wikipedia: Before passage by Congress of the Former Presidents Act (FPA) in 1958, retired Presidents did not receive a pension. All living Presidents in 1959 began to receive a pension of $25,000 per year, an office and a staff. The pension has increased numerous times with Congressional approval. Retired Presidents now receive a pension based on the salary of the current administration's cabinet secretaries (Executive Level I), which is $191,300 as of 2008.[22] Some former Presidents have also collected congressional pensions.[23] The FPA, as amended, also provides former presidents with travel funds and mailing privileges.
there were 43 presidents
44
1
There are many retired people living in the world
How many presidents have lived in the White House.
there were 44 presidents in U.S.A.
21 presidents
33 presidents
they are be 44 Presidents in the U.S.A.