Power Outages in San Mateo County, CA
As of October 15, 2026 00:30 UTC, about 2,783 customers are without power in San Mateo County, CA across 11 reported incidents. Pacific Gas & Electric Co. publishes only a system-wide total, not county figures. There is no live feed for City & County of San Francisco - (CA) and WAPA-- Western Area Power Administration, so outages in their service area aren't counted. In 2025, the average customer here lost power for about 6.5 hours.
San Mateo County, CA is served by 3 tracked utilities.
Cite this data
- URL
- https://massoutage.com/california/san-mateo-county
- As of
- October 15, 2026 00:30 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in San Mateo County, CA", live data as of October 15, 2026 00:30 UTC. https://massoutage.com/california/san-mateo-county
Not counted: no live feed for City & County of San Francisco - (CA) and WAPA-- Western Area Power Administration.
Out for ~4 days. Most outages this size in San Mateo County are back by now.
Historical average from 443 past outages here, an estimate, not a utility ETA. How long do outages usually last?
0.0%of this county's ~327,316 customers are served by utilities with a county-level live feed.
We can't see outages for: City & County of San Francisco - (CA), WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Pacific Gas & Electric Co..
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | Live · total only | not by county | - | - | - | - | - | - |
| City & County of San Francisco - (CA) | No live feed | can't see | - | - | - | - | - | - |
| WAPA-- Western Area Power Administration | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in San Mateo Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (29)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 94015 | 340 | ≤11 | 166 | 15 |
| 94080 | 332 | ≤11 | 163 | 13 |
| 94044 | 257 | ≤11 | 136 | ≤11 |
| 94066 | 216 | ≤11 | 112 | ≤11 |
| 94014 | 212 | ≤11 | 109 | ≤11 |
| 94403 | 202 | ≤11 | 86 | ≤11 |
| 94010 | 192 | ≤11 | 82 | ≤11 |
| 94404 | 184 | ≤11 | 86 | ≤11 |
| 94025 | 184 | ≤11 | 88 | ≤11 |
| 94061 | 177 | ≤11 | 86 | ≤11 |
| 94402 | 165 | ≤11 | 82 | ≤11 |
| 94401 | 163 | ≤11 | 71 | ≤11 |
| 94070 | 152 | ≤11 | 73 | ≤11 |
| 94062 | 149 | ≤11 | 54 | ≤11 |
| 94030 | 128 | ≤11 | 57 | ≤11 |
| 94063 | 120 | ≤11 | 51 | ≤11 |
| 94019 | 119 | ≤11 | 57 | ≤11 |
| 94002 | 113 | ≤11 | 51 | ≤11 |
| 94065 | 50 | 0 | 28 | 0 |
| 94028 | 38 | 0 | 17 | ≤11 |
| 94027 | 36 | ≤11 | 16 | 0 |
| 94005 | 25 | ≤11 | ≤11 | ≤11 |
| 94018 | 23 | ≤11 | ≤11 | ≤11 |
| 94037 | 16 | ≤11 | ≤11 | 0 |
| 94038 | 14 | 0 | ≤11 | 0 |
| 94074 | ≤11 | 0 | ≤11 | 0 |
| 94060 | ≤11 | 0 | ≤11 | 0 |
| 94021 | ≤11 | 0 | ≤11 | 0 |
| 94020 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for San Mateo County or any town and utility in it.
- Beach Hazards StatementMODERATE
San Mateo County has been under 48 National Weather Service alerts recently, most recently a Beach Hazards Statement on October 17, 2026.
- Coastal Flood Advisory ×16
- Heat Advisory ×16
- Beach Hazards Statement ×9
- Dense Fog Advisory ×6
- Tsunami Warning ×1
Latest San Mateo County, CA outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- GREW
Outage grew to 2,869 customers out (0.9% of the county)
- IMPROVING
Improving: down to 600 customers out
- OUTAGE BEGAN
Outage began: 4,272 customers out (1.3% of the county)
- RESOLVED
Power restored after 2h 45m
- RESTORATION ETA
Restoration now estimated October 13, 2026
- IMPROVING
Improving: down to 906 customers out
- RESTORATION ETA
Restoration now estimated October 13, 2026
- OUTAGE BEGAN
Outage began: 6,667 customers out (2.0% of the county)
Hardest-hit cities in San Mateo County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within San Mateo Countyisn't available yet.
Historical reliability
In 2025, the average customer in San Mateo County went about 6.5 hours without power. Peak simultaneous outage on record reached 81,483 customers.
The US EIA reports California utilities averaged 6.0 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 6.5 hrs.
Worst year here was 2023 (peak 67,816 customers out) · decade average 7.8 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2017 | 8 | 162 | 0.0 |
| 2018 | 300 | 33,771 | 1.3 |
| 2019 | 345 | 56,555 | 10.9 |
| 2020 | 506 | 36,697 | 4.1 |
| 2021 | 295 | 46,910 | 8.2 |
| 2022 | 321 | 15,867 | 3.8 |
| 2023 | 214 | 67,816 | 22.9 |
| 2024 | 235 | 81,483 | 12.5 |
| 2025 | 266 | 36,840 | 6.5 |
Cost of power in San Mateo County
ENERGY & AI DEMAND →Estimated residential electricity price for San Mateo County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Pacific Gas & Electric Co.37.5¢1,738,444 cust
- City & County of San Francisco - (CA)27.1¢3,670 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively Moderate wildfire exposure · 7.8 hrs/yr of outages over the last decade.
Power outages in San Mateo County: FAQ
- How often does San Mateo County, CA lose power?
- Based on EAGLE-I records, San Mateo County, CA logged 266 distinct outage events in 2025, averaging about 6.5 hours without power per customer over the year.
- What was the worst power outage in San Mateo County, CA?
- The largest tracked outage peaked at 81,483 customers without power, beginning January 31, 2024 and lasting about 13d 22h.
- Is there a power outage in San Mateo County, CA right now?
- Yes, about 2,783 customers are currently without power across 11 reported incident(s).
- Which utilities serve San Mateo County, CA?
- Tracked electric providers include Pacific Gas & Electric Co..
San Mateo, Daly City, Redwood City, South San Francisco, San Bruno. Outage counts for these communities are reported at the San Mateo County level shown above.
Outages are tracked at the county level; these ZIP codes fall within San Mateo County.
94002, 94005, 94010, 94014, 94015, 94018, 94019, 94020, 94021, 94025, 94027, 94028, 94030, 94037, 94038, 94044, 94060, 94061, 94062, 94063, 94065, 94066, 94070, 94074, 94080, 94128, 94401, 94402, 94403, 94404
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Pacific Gas & Electric Co. | 4.5 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| City & County of San Francisco - (CA) | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of California customers). Machine-readable data: /api/v1/counties/06081 and /api/v1/counties/06081/history. Live data as of .