His name is on several enterprises, mines, and entertainment facilities across the state, so it should come as no surprise that T. Denny Sanford is still the richest person in South Dakota.

Even with the philanthropic ventures, he still managed to add $300 million to his portfolio since last year. Forbes listed Sanford's wealth at $2.1 billion.

He'll have a ways to go before he catches up to his fellow billionaire to the south. Nebraska's Warren Buffet has $76.2 billion - but who's counting?

Bill Gates is still the richest person with a staggering $89 billion.

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