2. South Dakota
In its 2015 analysis, WalletHub called South Dakota the most lenient state in the nation in combating drunken driving, pointing out that the state has no minimum jail sentence for first or second offenders, no mandatory vehicle impound or license suspensions and no required ignition interlock devices.
In 2014, it had the second highest rate of DUI arrests in the country, according to an analysis of FBI data by CarInsurance.com, with 78.6 arrests for every 10,000 residents. It had the seventh highest rate of drunken driving fatalities, at 5.4 for every 100,000 residents, or 46 people killed in 2014.
An analysis by CarInsurance.com, found that insurance rates increased by an average of 41 percent in South Dakota following a DUI conviction, less than all but one other state and well below the nationwide average increase of 76 percent.