Power outages in San Mateo County, CA

Live outage counts for San Mateo, Daly City and Redwood City and the rest of San Mateo County, updated every 10 minutes from PG&E.

Right now

Normal: scattered outages
iNormal: fewer than 0.1% of customers out. Elevated: 0.1% or more. Major outage: 1% or more.
99customers without power
iA customer is one electric account, usually one home or business, not one person. Utilities count outages this way.
0.03% of 312,365 customersUpdated 7 min ago
iWe check every utility's outage data every 10 minutes. Each utility updates its own map on its own schedule, usually every 5 to 15 minutes.
PG&E99 / 312,365
City & County of San Francisco - (CA)no live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Also serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
. Check its own outage map.
WAPA-- Western Area Power Administrationno live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Also serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
. Check its own outage map.

Outage map

Outage locations not published
County outlinePG&E publishes totals only, not outage locations.
iSome utilities publish only how many customers are out, not where. Their outages are in the counts but can't be drawn on the map.

Outage history in San Mateo County

2014–2025 record

San Mateo County averaged 46.3 significant outages a year in 2023–2025, about typical for California counties.

In the 12 months to December 2025, there were 42. Half were over within 60 minutes; the longest lasted 1.8 days, starting December 24, 2025.

The largest on record began February 4, 2024, with 81,483 customers out at once.

46.3significant outages a year (2023–2025)
iAt least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.
1 hourtypical (median) length
iHalf of significant outages here ended sooner than this, and half lasted longer.
4.1 dayslongest on record (January 2023)
81,483most customers out at once
Largest events (start)Peak outLasted
iHow long this area stayed at or above the significant-outage line, not how long any one home was without power.
Customer-hours
iCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours.
February 4, 202481,4833.3 days2,011,312
March 14, 202367,8163.1 days1,665,803
February 21, 202362,7922.6 days1,802,951
October 27, 201956,5552.7 days2,196,044
October 24, 202146,9102.6 days963,034

Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).

iFrom EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.

If your power is out

Report it to your utility

Food safety

  • 0–4 hKeep the fridge closed. It keeps food cold for about 4 hours.
  • 4 h+Throw out meat, dairy and leftovers that have been above 40°F for more than 2 hours.
  • 24 hA half-full freezer holds about 24 hours if kept closed.
  • 48 hA full freezer holds about 48 hours.

Generators, heat and cold

  • Run generators outside only, at least 20 feet from windows and doors. Never in a garage.
  • Use a battery-powered carbon monoxide alarm.
  • Never heat your home with a gas stove or oven.

Cities in San Mateo County

Nearby counties

Utilities