San Mateo County, CA Power Outages
Utilities serving San Mateo County, California don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
San Mateo County on the California outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
San Mateo County power outage history
Every significant outage recorded in San Mateo County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 198 significant power outages in San Mateo County, meaning events that left at least 1% of customers in the dark. The largest (Feb 4–8, 2024) came when severe thunderstorms left 81,483 customers (24.8% of the county) without power.
From 2018 to 2025, the average customer here lost about 8 hr 47 min of power per year, more than the California average of 6 hr 35 min. That ranks 32nd of 58 California counties for outage time, where 1st has the most.
February is the riskiest month: it accounted for 21% of all customer outage time from 2018 to 2025. On 37 days in that period, at least 5% of customers were out at the same time. Outage time in San Mateo County has risen recently: about 11 hr 27 min per customer per year in 2022–2025, versus 6 hr 8 min in 2018–2021.
The most recent significant outage on record (Dec 26, 2025) affected 9,806 customers (3%) amid severe thunderstorms.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Feb 4–8, 2024 | 81,483(24.8%) | 5 | Severe thunderstorms |
| 2 | Mar 10–17, 2023 | 67,816(20.6%) | 8 | Flooding |
| 3 | Feb 21–24, 2023 | 62,792(19.1%) | 4 | Winter storm |
| 4 | Oct 27–29, 2019 | 56,555(17.2%) | 3 | High winds |
| 5 | May 15, 2023 | 51,416(15.7%) | 1 | Extreme heat |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in San Mateo County?
Electric companies with service territory in San Mateo County (EIA-861, 2025)
| Utility | Type | Customers (CA) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| PG&E | Investor Owned | 5,728,333 | Not reporting | |
| City & County of San Francisco - (CA) | Municipal | 3,995 | Not reporting | |
| WAPA-- Western Area Power Administration | Federal | 94 | Not reporting |
Customer counts are each utility's statewide total in California. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No San Mateo County outage headlines in the past week.
Cities in San Mateo County
San Mateo, Daly, Redwood, South San Francisco, San Bruno, Pacifica, Menlo Park, Foster, Burlingame, San Carlos
Nearby counties
San Mateo County power outage FAQ
Is the power out in San Mateo County right now?
No outages are currently reported for San Mateo County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves San Mateo County?
According to EIA-861 service territory data, Pacific Gas & Electric Co., City & County of San Francisco - (CA), WAPA-- Western Area Power Administration provide electric service in San Mateo County, California.
What was the worst power outage in San Mateo County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Feb 4–8, 2024. It peaked at 81,483 customers without power (24.8% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in San Mateo County?
EAGLE-I has recorded 198 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 8 hr 47 min of power per year, and on 37 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "San Mateo County, CA Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/california/san-mateo-county