Power Outages in Mariposa County, CA
As of the latest utility report, no major power outages are reported in Mariposa County, CA. In 2025, the average customer here lost power for about 32.7 hours.
Mariposa County, CA is served by 1 tracked utility.
No active power outages are currently reported in Mariposa County.
No active NWS alerts for Mariposa County right now.
Mariposa County has been under 4 National Weather Service alerts recently — most recently a Heat Advisory on July 16, 2026.
- Heat Advisory ×4
Hardest-hit cities in Mariposa County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Mariposa County went about 32.7 hours without power. Peak simultaneous outage on record reached 10,893 customers.
Worst year here was 2021 (peak 10,893 customers out) · decade average 65.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2018 | 210 | 3,289 | 30.9 |
| 2019 | 433 | 10,236 | 61.9 |
| 2020 | 484 | 10,268 | 32.3 |
| 2021 | 404 | 10,893 | 137.9 |
| 2022 | 402 | 3,863 | 83.1 |
| 2023 | 407 | 10,887 | 111.7 |
| 2024 | 410 | 4,100 | 33.9 |
| 2025 | 400 | 3,844 | 32.7 |
Relatively High wildfire exposure · 65.5 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability very high — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Mariposa County: FAQ
- How often does Mariposa County, CA lose power?
- Based on EAGLE-I records, Mariposa County, CA logged 400 distinct outage events in 2025, averaging about 32.7 hours without power per customer over the year.
- What was the worst power outage in Mariposa County, CA?
- The largest tracked outage peaked at 10,893 customers without power, beginning November 3, 2021 and lasting about 9h 15m.
- Is there a power outage in Mariposa County, CA right now?
- No major outage is currently reported for Mariposa County, CA. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Mariposa County, CA?
- Tracked electric providers include PGE.
Outages are tracked at the county level; these ZIP codes fall within Mariposa County.
93623, 95306, 95311, 95318, 95325, 95338, 95345, 95389
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| PGE | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/06043 and /api/v1/counties/06043/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of California customers).