- walnutca.gov (opens in a new tab)City of Walnut — Elections page (My-Government/Elections): "The next General Municipal Election will be held on Tuesday, November 3, 2026, for the election of two (2) City Councilmembers"; its own "Current Candidate List" names four qualified candidates -- Allen Wu, Richard "Ritchie" Cajulis, Hong "Diana" Zhao, Stefanie Leilua -- each marked Qualified: Yes, with pulled/filed-papers dates through 8/5/2026
- walnutca.gov (opens in a new tab)City of Walnut — Walnut City Council roster page: lists all five sitting members and titles -- Dr. Allen Wu (Mayor), Nancy Tragarz (Mayor Pro Tem), Ritchie Cajulis, Linda Freedman, Kaylee May Law (Council Members) -- confirming Wu and Cajulis, both on the 2026 candidate list, are the two sitting members up for election this cycle
- walnutca.gov (opens in a new tab)City of Walnut — Dr. Allen Wu's official council bio: "elected to serve on the Walnut City Council in 2018 and selected as Mayor in 2022 and 2026"; Ph.D. in Civil Engineering and M.S. in Environmental Engineering from USC, prior service as a Parks & Recreation Commissioner (2002-2004) and as Walnut Valley Water District Board President (2008, 2012, 2017)
- walnutca.gov (opens in a new tab)City of Walnut — Ritchie Cajulis's official council bio: "Before his appointment to the City Council in 2022, he served on the Parks and Recreation Commission" -- confirming he holds his current seat by 2022 appointment rather than election, and that 2026 is his first bid to win it directly; an IT analyst at a law firm, degree in Electronics and Communications Engineering from Don Bosco Technical College, Manila
- hraus.com (opens in a new tab)hraus.com (Huaren/Australian Chinese) — "Four Candidates for Two Walnut City Council Seats, Two Chinese Americans Running" (Aug. 23, 2026): independent profiles of all four candidates, corroborating Wu's and Cajulis's official bios and adding Zhao's professional background (psychotherapist, USC Ph.D. 2021, 16 years at LA County DCFS) and Wu's own claimed 2025 theft-rate and city-budget figures; found only "limited public information" on Leilua, a late qualifier still building her campaign website as of publication
- results.lavote.gov (opens in a new tab)LA County RR/CC — certified results, November 5, 2024 General Election, Walnut City General Municipal Election, Member of the City Council (3 seats): Hong "Diana" Zhao finished fourth of six candidates with 3,271 votes (12.64%) -- a figure surfaced via a search-engine indexed excerpt of the county's text-results page after the full page could not be loaded within this pass's time budget, not a full read of the underlying document
- ballotpedia.org (opens in a new tab)Ballotpedia — Hong Zhao (Walnut City Council At-large, California, candidate 2024): confirms she ran in the November 5, 2024 general election for one of three at-large seats against five other candidates, including the three incumbents who won (Freedman, Law, Tragarz)
- theballotbook.com (opens in a new tab)The Ballot Book — Hong Diana Zhao person page: lists "Election History: 2 elections, 2024, 2022" for City of Walnut City Council, both marked lost -- surfaced via a search-engine snippet after the page itself returned no extractable text on direct retrieval this pass, so this is not a full read of the underlying page
- cal-access.sos.ca.gov (opens in a new tab)California Secretary of State CAL-ACCESS — filer searches, checked by candidate name 2026-08-31: Allen Wu's committee (Filer 1409276, "WU WALNUT CITY COUNCIL (WCC) 2026; ALLEN", renamed from 2018/2022 committees) is ACTIVE; Ritchie Cajulis's (Filer 1451881, renamed from a 2022 committee) is ACTIVE; Hong Diana Zhao's (Filer 1490833, "ZHAO FOR WALNUT CITY COUNCIL 2026", a newly-registered filing distinct from her existing 2024 committee, Filer 1470294) is ACTIVE -- none of the three has electronically filed a Form 460/461/450 for the 2025-2026 cycle as of this retrieval; Stefanie Leilua has no filer record in CAL-ACCESS at all
Last updated August 31, 2026.
City of Walnut
Walnut City Council
This person holds one of two at-large seats up this cycle. Walnut's City Council has five members, elected to staggered four-year terms. They vote on the city budget, zoning rules, and other city laws. The council picks one of its own members to serve as Mayor. It picks another as Mayor Pro Tem. Neither title is separately elected.
Walnut elects two of its five City Council seats on November 3, 2026. Two sitting councilmembers, Mayor Allen Wu and Ritchie Cajulis, are running for those seats. They face two challengers, repeat candidate Hong "Diana" Zhao and first time candidate Stefanie Leilua.
Each winner serves a 4-year term on Walnut's City Council, which sets the budget, zoning and development rules, and municipal ordinances for this San Gabriel Valley city of roughly 30,000 residents. All five seats are elected at-large rather than by district, and the council selects one of its own members to serve as Mayor and another as Mayor Pro Tem each year -- Wu and Nancy Tragarz currently hold those roles. The city contracts with the LA County Sheriff's Department for public safety rather than running its own police force.
Wu and Cajulis both already hold their seats -- Wu by election since 2018, Cajulis by a 2022 appointment, so this is his first time facing voters directly for it. Zhao, running for a third time after finishing fourth of six in 2024, and Leilua, a late-qualifying newcomer, are the challengers looking to unseat one or both incumbents; Zhao is the more established of the two, while Leilua's platform and priorities were not reachable as of this pass.
Ritchie Cajulis
Ritchie Cajulis is a sitting Walnut councilmember, appointed to the seat in 2022. His priorities are expanding city services, preserving the environment, and strengthening public and cyber security. He is an IT analyst with a degree from Don Bosco Technical College in Manila.
Stefanie Leilua
Stefanie Leilua is the only newcomer in the race. She qualified for the ballot on August 5, 2026, weeks after the other candidates. No platform statement for her was found, and public information about her is limited.
Allen Wu
Dr. Allen Wu is Walnut's sitting Mayor, first elected to the council in 2018. He holds a Ph.D. in Civil Engineering from USC. He credits himself with fewer 2025 thefts and eight balanced budgets, by his own account.
Hong "Diana" Zhao
Hong "Diana" Zhao is a psychotherapist and business owner making at least their third run. They finished fourth of six candidates in the 2024 general election. They spent 16 years at LA County's Department of Children and Family Services.
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A nonpartisan office: candidates do not run as Democrats or Republicans, and no party appears on the ballot.