SEATTLE – Tech industry billionaires dominated Forbes’ latest list of the United States’ wealthiest people, with Bill Gates and his $51 billion fortune again topping the list. Nine Michigan residents were included in Fortune?s list of 400.

The Microsoft chairman has now reigned the ranks a dozen times. Co-founder Paul Allen, worth $22.5 billion, again placed third, while CEO Steve Ballmer, a native of Michigan, valued at $14 billion, nabbed the No. 11 standing.

Michigan?s wealthiest residents include:

Ranked 65, Richard DeVos, Alticor, of Ada, $3.4 Billion

Ranked 133, Roger Penske, Penske Corp., of Birmingham, $2 Billion

Ranked 133, Jon Lloyd Stryker, Stryker Corp., of Kalamazoo, $2 Billion

Ranked 164 William Pulte, Pulte Corp., of Bloomfield Hills, $1.8 Billion

Ranked 283, William Clay Ford Sr., Ford, of Grosse Pointe Shores, $1.2 Billion

Ranked 320, Alfred Taubman, Real Estate, of Bloomfield Hills, $1.1 Billion

Ranked 320, John Brown, Styker Corp., of Kalamazoo, $1.1 Billion

Ranked 346, Richard Manoogian, Masco, of Grosse Pointe Farms, $1 Billion

Ranked 384, Dan Gilbert, Quicken Loans, of Livonia, $900 Million

With the exception of legendary investor Warren Buffett, whose $40 billion net worth secured him a spot behind Gates, this year’s top five wealthiest Americans all represent the technology industry.

Michael Dell and Oracle executive Larry Ellison, with their fortunes pegged at $18 billion and $17 billion, respectively, both beat out a handful of Wal-Mart heirs to take the fourth and fifth spots.

Google founders Sergey Brin and Larry Page – each worth $11 billion and, at 32, the youngest of the pack – surged to the No. 16 spots after debuting on last year’s list at No. 43. They displaced 38-year-old Pierre Omidyar of eBay, who, at $10.2 billion, placed 18th.

Amazon.com’s Jeff Bezos, who recorded $4.6 billion, slightly more than last year, dropped from No. 38 to the No. 42. Apple’s Steve Jobs, as well as Yahoo’s David Filo and Jerry Yang, also made it into the top 100.

Overall, the total net worth of the Forbes roster grew to $1.13 trillion. All but 26 people on the list – including America Online co-founder Steve Case, ranked No. 384 – counted net worth in the billions.