Advertisement Expert: Millennials can't find stamps, don't mail in ballots Mail-in ballots surge into Sacramento County elections office Share Shares Copy Link Copy

There was a barrage of incoming ballots Wednesday at the Sacramento County elections office."The return of the ballots -- the request for ballots -- everything is the highest number I have ever seen in Sacramento County," Sacramento County Registrar of Voters Jill Lavine said.Lavine said 19 trays of mail arrived on just Wednesday, filled with an estimated 5,000 completed ballots.But, that's just part of the picture."We've got close to 56,000 ballots back in the office," Lavine explained.Political Data VP Paul Mitchell has been tracking the new numbers."The surge in voter registration: 65 percent of those voters are under 35," Mitchell said.While young people in particular have been flocking to the Bernie Sanders campaign, a closer look at who has actually voted so far tells a very different story.Millennials are “only 9 percent of the electorate," Mitchell said, referring to mail-in ballots. "So, you have an under 35 group that is registering in droves but turning out in trickles in the early vote by mail."So why are younger voters showing such reluctance thus far to vote by mail?"A lot of younger voters, they might not even know where they keep their stamps," Mitchell said.Voting by mail may be problematic for some voters -- but not for older ones.Mitchell's data shows early voting has been dominated by white voters, age 55 and up.Helen Hakanson voted in person Wednesday at the Sacramento County Elections Office."Because we are leaving the country tomorrow for three weeks," Hakanson explained. "We didn't get our absentee ballots, so we decided we better come down here and vote because tomorrow we are on a plane."Early voting analysis from Political Data shows 71 percent of those voting so far in California are at least 55 years old.By contrast, some 400,000 new people registered to vote 15 days before the deadline. Mitchell said 30 percent of them are Latino -- many of them younger voters -- and strongly Democratic. Mitchell said he expects many of them to show up at the polls in person on Election Day.