Which states allow same-day voter registration?

All states aside from North Dakota require voters to register before voting, but a significant number allow registration on the same day that voting takes place.States with same-day voter registration lean toward Democrats, but it isn’t limited to blue states. By Ballotpedia’s account, of the 21 states offering same-day registration with little or no qualifiers, nine have Democratic trifectas, six Republican trifectas, and six are split. Here are the 21 states with same-day voter registration, plus the District of Columbia: California Colorado Connecticut Hawaii Idaho Illinois Iowa Maine Maryland Michigan Minnesota Montana Nevada New Hampshire New Mexico Utah Vermont Virginia Washington Wisconsin Wyoming District of Columbia A handful of other states have some version of same-day registration with qualifiers: North Carolina, New York, and Massachusetts only offer same-day registration during early voting Rhode Island and Alaska only have same-day registration for elections for president North Dakota doesn’t have voter registration at all, so functionally allows same-day voter registration.MARC ELIAS HAS HAND IN MAJOR ELECTION LAWSUITS THIS MIDTERM, INCLUDING MARY PELTOLA CERTIFICATION FIGHTSame-day voter registration has been found to boost voter turnout, but still has its critics. Unlike other voting processes, however, same-day registration is notable for its nonpartisan critics, who attack it from very different angles than most who seek to make voting rules more strict.Opponents of same-day voter registration have attacked it on bureaucratic grounds, arguing that allowing it adds a much bigger workload for election workers and creates longer lines on Election Day. Election administrators are often the fiercest opponents of the process.