Biggest Holders of 

US Government Debt


RANK HOLDER AMOUNT
$ BILLIONS
1 Federal Reserve 4,785.0
2 Mutual Funds 769.1
3 China 776.4
4 Japan 711.8
5 Other Investors 629.7
6 State & Local Governments 550.3
7 Pension Funds 456.4
8 United Kingdon 214.0
9 Oil Exporters 191.0
10 Caribbean Banking Centers 189.7
11 Brazil 139.8
12 Insurance Companies 126.4
13 Russia 119.9
14 Depository Insititutions 107.3
15 Luxembourg 104.2

Source: US Treasury, US Federal Reserve & US Office of Debt Management

Source:  http://www.cnbc.com/id/29880401