Voter Information


A person entitled to vote shall be a United States citizen, a resident of California, not imprisoned or on parole for the conviction of a felony, and at least 18 years of age at the time of the next election. Voters can:

Helpful Links

Ballot Drop-Off Location for March 3, 2020 Election

The Diamond Bar Library, located at 21800 Copley Drive, is serving as an official ballot drop-off location for the March 3, 2020 California Primary Election. Individuals with vote-by-mail ballots may drop off their ballots through March 3 during the Library’s regular business hours of Monday through Thursday 10 a.m.-8 p.m., and Friday and Saturday 9 a.m.-5 p.m.

LA County Vote Centers

Voting in the March 3 Presidential Primary Election? You may cast your ballot as early as Feb. 22 by visiting any of the approximately 250 vote centers throughout the county. In Diamond Bar, seven locations will serve as vote centers:

Diamond Bar City Hall/Library
21810 Copley Drive

Diamond Bar Center
1600 Grand Ave.

Armstrong Elementary School
22750 Beaverhead Drive

Diamond Point Elementary School
24150 Sunset Crossing Road

East County Admin Offices
1061 S. Grand Ave.

Golden Springs Elementary School
245 Ballena Drive

Northminster Presbyterian Church
400 Rancheria Road

A full list and locator map of vote centers throughout Los Angeles County is also available.

Locator Map   

(type a street address in the “Search” field, and select your preferred location from a drop down menu)

List of Sites

(view a list of all 250 locations throughout the county)


The City of Diamond Bar contracts with the Los Angeles County Registrar-Recorder / County Clerk for election services.

Polling Places &Times

Polling places may vary from election to election, review your sample ballot for location, date, and time. For more information, call the Diamond Bar City Clerk’s office at 909-839-7000.