Voter turnout in King County for Tuesday’s primary election will be about 35 percent, “lower than expected,” said county elections director Sherril Huff.

Huff attributed it to few hotly contested primary races or ballot measures.

The county has more than 1 million registered voters.Countywide, 600,000-plus absentee ballots were distributed, according to the county elections department. The mail-in ballots had to be returned by Tuesday – postmarked by that day if mailed, or deposited in drop boxes – in order to count in the final results. About 210,000 had arrived by Wednesday, officials said.