Full Breakdown
San Mateo County Mail-In Ballot Theft Raises Election-Security Concerns
By Drooid · · How we work
Incident Overview
On the afternoon of October 16, 2026, mail was taken from the loading dock of the United States Postal Service facility on Sullivan Avenue in Daly City, California. An employee reported the theft at approximately 3 p.m., and the U.S. Postal Inspection Service confirmed that collected mail—including, potentially, vote-by-mail ballots from San Mateo County—was stolen. The San Mateo County Assessor-County Clerk-Recorder’s Office said an “unknown number” of ballots may have been taken, but it has not been confirmed that any ballots were actually removed. Federal authorities are investigating, and the U.S. Postal Inspection Service has offered a reward of up to $100,000 for information leading to an arrest and conviction.
Background & Context
California’s early mail-in voting for the November 2026 election began earlier this month, when ballots were mailed to registered voters. A 2025 Brookings study cited by local officials found that cases of mail-voting fraud are “very rare,” with only four fraudulent instances out of ten million mail ballots. Earlier in the month, a separate theft of a postal truck in Sacramento County highlighted broader concerns about mail security, though investigators did not link that event to election mail.
Official Statements & Responses
Assistant Chief Elections Officer Jim Irizarry reassured voters that the county’s Registration and Elections Division maintains safeguards to ensure that only one ballot per voter is counted and that duplicate ballots are prevented. The reward offer underscores the federal commitment to recovering the stolen mail and prosecuting those responsible.
Verbatim Quotes
- “I think it's terrible. I mean, people are relying on the post office to deliver all of the mail, but it's, I think it's crucial right now with the election coming up that the mail gets out for us,” — Mark Nobriga, Daly City resident
- “I think that's potentially a problem, because it just means that our voice isn't being heard,” — Renae Ashton, San Francisco resident and voter
- “What we need to do is to make sure that people understand that there are consequences for taking mail, and there are consequences for taking ballots,” — County Supervisor David Canepa
Data & Statistics
- October 16, 2026 – Date of the Daly City post-office theft.
- October 27, 2026 – Deadline for online requests for replacement ballots.
- Reward of up to $100,000 offered by the U.S. Postal Inspection Service.
- Brookings study: 4 fraudulent cases out of 10 million mail-in votes.
Conflicting Reports & Gaps
County officials have said an “unknown number” of ballots may have been taken, yet they have not confirmed any ballots were actually stolen. Federal investigators have not ruled out that the theft was unrelated to election mail, and Daly City police indicated they have “no open case or investigation” regarding the missing mail bins. The precise impact on the upcoming election remains unclear.
What’s Next
Voters who do not see their ballots reflected in the tracking system are instructed to request replacement ballots online or in person at any San Mateo County Vote Center, with requests required by October 27, 2026. The U.S. Postal Inspection Service and federal authorities continue to investigate, and additional security measures are being considered by county officials ahead of the November midterm elections.