Washington ? Traffic deaths in the United States declined last year, reaching the lowest level in more than a decade, the government reported Thursday.

Some 41,059 people were killed in highway crashes, down by more than 1,600 from 2006. It was the fewest number of highway deaths in a year since 1994, when 40,716 people were killed.

The fatality rate of 1.37 deaths for every 100 million miles traveled in 2007 was the lowest on record, the National Highway Traffic Safety Administration said in its report.

“Thanks to safer vehicles, aggressive law enforcement and our efforts, countless families were spared the devastating news that a loved one was not coming home,” said Transportation Secretary Mary Peters.

California had the largest decline, 266 fewer fatalities than the previous year. The largest percentage decreases were in South Dakota and Vermont.

North Carolina’s death toll increased the most in the nation, up 121 over the previous year. The District of Columbia and Alaska had the highest percentage increases.

Motorcycle deaths increased for the 10th straight year. There were 5,154 motorcycle deaths last year, compared with 4,837 in 2006.

Peters, an avid motorcyclist who keeps a scuffed helmet in her office that she credits with saving her from a severe head injury in a 2005 crash, said the rise in motorcycle fatalities was disappointing. The increased deaths have come while the number of registered motorcycles has surpassed 6 million, compared with 3.8 million in 1998, and vehicle miles traveled have risen.

Peters said with higher fuel prices, more people may use motorcycles or scooters.

Transportation officials said they plan to target motorcycle drivers in a $13 million anti-drunken driving advertising campaign running during the upcoming Labor Day holiday. The department has also discussed new safety and training standards for novice riders, increased training for law enforcement and curbing counterfeit safety-labeling of helmets.

Fatalities in crashes that involved a driver or motorcycle rider with a blood-alcohol level of 0.08 percent, the legal limit, declined to just under 13,000 deaths in 2007, a 3.7 percent decrease.