What’s wrong with the northern border states? Wisconsin and North Dakota lead the nation in drunk driving, and the surrounding states like Minnesota, Michigan, and Montana aren’t far behind, according to a new report by the Substance Abuse and Mental Health Services Administration. Utah and Mississippi had the lowest rates of drunk driving. Pooling data from 2006-2009, the survey found that nationally, drunk driving fell to 13.2 percent from 14.6 percent over the last three-year period surveyed. Nearly 20 percent of drivers aged 16 to 25 admitted to having driven drunk in the past year.