BISMARCK, N.D. -- A smartphone warranty provider says North Dakotans are among the nation's clumsiest people when it comes to handling iPhones.

The SquareTrade company says between 25 and 29 percent of North Dakota warranty holders reported damaging their iPhones over two years.

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SquareTrade ranks North Dakota iPhone owners as the fourth clumsiest in the country, based on the number of warranty claims.

The company says it came up with its ratings by dividing the number of damage claims by the number of warranties sold in the state. It says it analyzed almost 126,000 damage claims nationwide.

North Dakotans did not show up on the top five "clumsy list" for handling iPads.

The warranty company rates people in Mississippi as the clumsiest both for handling both iPhones and iPads.