All San Mateo County voters will receive their ballots in the mail in the coming days and can choose to vote either by mail or in person at a voting center.

Four voting centers open Tuesday, Oct. 9. They are the Assessor-County Clerk-Recorder's Office at 555 County Center in Redwood City; the San Mateo County Registration & Elections Division at 40 Tower Road in San Mateo; the Lewis and Joan Platt East Palo Alto Family YMCA at 550 Bell St. in East Palo Alto; and South San Francisco's main library at 840 West Orange Ave.

The four centers are open 9 a.m. to 5 p.m. Monday through Friday, and will also be open the same hours the weekend of Oct. 27 and 28, when five additional voting centers will open. On Saturday, Nov. 3, through Monday, Nov. 5, all 39 voting centers will be open 9 a.m. to 6 p.m. Election Day hours are 7 a.m. to 8 p.m.

Additional voting centers available beginning Oct. 27 will be open daily through Election Day. They are the North Fair Oaks Community Center at 2600 Middlefield Road in Redwood City; the Emergency Operations Center at 537 Kelly Ave. in Half Moon Bay; Skyline College, Building 19, Room 213, at 3300 College Drive in San Bruno; the Boys & Girls Club at 200 North Quebec St. in San Mateo; and Daly City's City Hall at 333 90th St.

Thirty more voting centers will open Nov. 3 and remain open through Election Day.

The voting centers have accessible voting machines, paper ballots, election materials in numerous languages, and bilingual assistance. Voters can also receive replacement ballots, register to vote or update registration information through Election Day at the centers.

Voters can also drop off ballots in designated boxes, or mail in their ballots in the provided postage-paid envelope.

Local drop-off locations, open during business hours, are Menlo Park City Hall at 701 Laurel St.; Atherton Town Hall at 91 Ashfield Road; Woodside Town Hall at 2955 Woodside Road; the Lewis and Joan Platt East Palo Alto YMCA; and Portola Valley Town Hall at 765 Portola Road.

The nearest 24-hour outdoor drop-off locations are the San Mateo County Registration & Elections Division, and the East Palo Alto Government Center at 2415 University Ave.

For a complete list of drop-off locations and voting centers, visit smcacre.org.

San Mateo County was the first in the state to conduct a countywide, local consolidated all-mailed ballot election in 2015.

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