Americans work an average of 1,805 hours a year, leaving 33% of paid time off unused, according to WalletHub and World Economic Forum data. Americans are hard workers, putting in an average of 1,805 hours per year , according to the World Economic Forum. Researchers at WalletHub were determined to find out, comparing the 50 states across two key dimensions: "Direct Work Factors" and "Indirect Work Factors." North Dakota is hardest working stateBy the numbers:The data found that North Dakota was the hardest-working state, in part because it had the third-highest employment rate in the country, at nearly 98%. Hardest Working StatesNorth Dakota Alaska South Dakota Texas HawaiiAmericans are considered hard workers, data findsDig deeper:According to the data, Americans are hard workers, putting in an average of 1,805 hours per year , according to the World Economic Forum.