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The Richest Families In America 2011

Rounding out the top 10 richest families on the Forbes 400 in 2011. The Walton Family is by far the richest family in United States (the dispersed fortunes of the Rockefellers and others being unkn

Rounding out the top 10 richest families on the Forbes 400 in 2011.

The Walton Family is by far the richest family in United States (the dispersed fortunes of the Rockefellers and others being unknown to the public), their wealth inherited from Bud and Sam Walton, founders of the world’s biggest retailer,Wal-Mart. The Waltons have a combined wealth of US$93 billion according to Forbes 400. The oldest fortune is that of the Cargill family. W.W. Cargill founded a grain storage company in 1865 which has since grown into the world’s largest private company.

Number of relatives refers to members on The Forbes 400 in 2011:

10 #1. Walton Family - 6 relatives

Combined Net Worth: $93 Billion

Source: Wal-Mart, founded by Sam Walton in 1962, with revenues of $405 billion in 2010.

9 #2. Koch Family - 3 brothers

Combined Net Worth: $54 billion

Source: Koch Industries, which operates pipelines, produces fertilizer, chemicals, polymers and owns forestry company Georgia Pacific; Brothers David and Charles own large stakes in $100 billion (revenues).

8 #3. Mars Family - 3 siblings

Combined Net Worth: $41.4 billion

Source: Siblings share ownership of Mars, the world’s largest confectioner, maker of M&Ms, Milky Way and 3 Musketeers and a long list of others.

7 #4 Cox Family- 3 relatives

Combined Net Worth: $24 billion

Source: Family members share ownership of Cox Enterprises, whose assets include cable company Cox Communications and newspaper, TV and radio group Cox Media.

6 #5. Pritzker Family - 11 relatives

Combined net worth: $19.6 billion

Source: The family inherited pieces of a diversified fortune that includes Hyatt Hotels and host of industrial assets that were built up A.N. Pritzker and his sons Jay (d. 1999) and Robert.

5 #6. Cargill Family - 7 relatives

Combined Net Worth: $14.3 billion

Source: Seven members of the Cargill and MacMillan families inherited stakes agribusiness giant Cargill Inc., which had revenues of $119.5 billion in the fiscal year through May 2011.

4 #7. Duncan Family - 4 siblings

Combined Net Worth: $13.6 billion

Source: Siblings inherited their wealth from their father Dan Duncan, who built Enterprise Products into an energy company that owns 49,000 miles of pipelines.

3 #8. Ziff Family - 3 brothers

Combined Net Worth: $12.6 billion

Source: Brothers share ownership of Ziff Brothers Investments, a diversified portfolio of hedge funds, real estate, equities and commodities. Their father built the Ziff-Davis publishing  empire.

2 #9. Newhouse Family - 2 brothers

Combined Net Worth: $12.5 billion

Source: Brothers S.I. and Donald run newspaper and media company Advance Publications (owner of magazine publisher Conde Nast) and own stock in Discovery Communications.

1 #10. S. C. Johnson Family - 5 relatives

Combined Net Worth: $11.5 billion

Source: H. Fisk Johnson is CEO of household products company S.C. Johnson, with $9 billion in revenues.

[See full list on Forbes.com]

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The Richest Families In America 2011