Middlesex County fuels 4.4 percent increase in voter enrollment

There are 192,133 new registered voters in Massachusetts since the last presidential election, with three of the state's 14 counties, including Middlesex, responsible for more than half of the increase. As of Oct. 19, 2016, 4,534,974 people are registered to vote in Massachusetts, according to data from Secretary of State William Galvin's office.