St. Mary's County, MD Power Outages
Utilities serving St. Mary's County, Maryland 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.
St. Mary's County on the Maryland outage map
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- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
St. Mary's County power outage history
Every significant outage recorded in St. Mary's County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 284 significant power outages in St. Mary's County, meaning events that left at least 1% of customers in the dark. The largest (Sep 22, 2015) left 20,346 customers (36.4% of the county) without power. NOAA recorded no major storm in the area at the time.
From 2018 to 2025, the average customer here lost about 4 hr 29 min of power per year, more than the Maryland average of 3 hr 36 min. That ranks 7th of 24 Maryland counties for outage time, where 1st has the most.
January is the riskiest month: it accounted for 16% of all customer outage time from 2018 to 2025. On 40 days in that period, at least 5% of customers were out at the same time. Outage time in St. Mary's County has held roughly steady recently: about 4 hr 36 min per customer per year in 2022–2025, versus 4 hr 22 min in 2018–2021.
The most recent significant outage on record (Dec 19, 2025) affected 7,689 customers (13.8%) amid a winter storm.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Sep 22, 2015 | 20,346(36.4%) | 1 | No major storm reported |
| 2 | Jan 3–5, 2022 | 14,054(25.1%) | 3 | Winter storm |
| 3 | Feb 29, 2024 | 12,061(21.6%) | 1 | No major storm reported |
| 4 | Mar 2–4, 2018 | 11,852(21.2%) | 3 | High winds |
| 5 | May 13–17, 2025 | 11,745(21%) | 5 | Severe thunderstorms |
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 St. Mary's County?
Electric companies with service territory in St. Mary's County (EIA-861, 2025)
| Utility | Type | Customers (MD) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| SMECO | Cooperative | 180,658 | Not reporting |
Customer counts are each utility's statewide total in Maryland. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No St. Mary's County outage headlines in the past week.
Nearby counties
St. Mary's County power outage FAQ
Is the power out in St. Mary's County right now?
No outages are currently reported for St. Mary's 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 St. Mary's County?
According to EIA-861 service territory data, Southern Maryland Elec Coop Inc provide electric service in St. Mary's County, Maryland.
What was the worst power outage in St. Mary's County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Sep 22, 2015. It peaked at 20,346 customers without power (36.4% of the county). NOAA storm reports for that period point to no major storm reported.
How often does the power go out in St. Mary's County?
EAGLE-I has recorded 284 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 4 hr 29 min of power per year, and on 40 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. "St. Mary's County, MD Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/maryland/st-marys-county