Voter registration deadline October 5 for general election | King County

Citizens who want to vote in the November 3 general election have until Monday, October 5 to register to vote or update voter registration information online or by mail.

Citizens who want to vote in the November 3 general election have until Monday, October 5 to register to vote or update voter registration information online or by mail.

King County Elections will mail general election ballots to all registered voters on October 14, so it’s important that citizens register to vote and keep their address and other information, including their signature, updated.

Voters can check to make sure their registration information is current by:

  • Using My Voter Guide online
  • Calling the Voter Hotline at 206-296-VOTE (8683)
  • Visiting King County Elections

    919 SW Grady Way, Renton

    Weekdays from 8:30 a.m. to 4:30 p.m.

  • Visiting the Voter Registration Annex

    500 4th Avenue, Room 440, Seattle

    Weekdays from 8:30 a.m. to 1 p.m. and from 2 p.m. to 4:30 p.m.

How to register to vote

  • Online

    The easiest way to register to vote

  • By mail

    Download a registration form and mail it in

  • In person

    At King County Elections or the Voter Registration Annex

Voters who miss the October 5 deadline to update their registration should still contact the Elections office to update their information for future elections. King County residents not currently registered in Washington can register in person at the Elections office through October 26.

Who can register?

To be eligible to register to vote, you must be:

  • 18 years old by election day (November 3)
  • A United States citizen
  • A legal resident of the state of Washington
  • Not under the authority of the Department of Corrections

Voters can visit the Elections website or call the Elections office at 206-296-VOTE for assistance and information.