The third annual Healthiest State Walk will be held Oct. 9, Gov. Terry Branstad's office announced. All Iowans are encouraged to walk 1 kilometer, roughly seven to eight city blocks, that day as a sign of support for the Healthiest State Initiative, a campaign to make Iowa the healthiest state in the nation. For the first time, the event will have corporate sponsors. Delta Dental of Iowa will serve as presenting sponsor, while Mercy Health Network and UnityPoint Health will serve as sponsors. More than 600,000 Iowans have participated in the first two walks. "The 2013 walk will be a great way to continue the momentum of our rise from 19th to 16th and now to the ninth healthiest state in the Gallup-Healthways Well-Being Index," Branstad said in a press release. For information about the Healthiest State Initiative,