St. Tammany Parish, LA Power Outages
Utilities serving St. Tammany Parish, Louisiana 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. Tammany Parish on the Louisiana outage map
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- Minor
- Moderate
- Major
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- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
St. Tammany Parish power outage history
Every significant outage recorded in St. Tammany Parish since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 233 significant power outages in St. Tammany Parish, meaning events that left at least 1% of customers in the dark. The largest (Aug 29 – Sep 10, 2021) came when tornadoes left 130,114 customers (79.2% of the county) without power.
From 2018 to 2025, the average customer here lost about 17 hr 55 min of power per year, less than the Louisiana average of 28 hr 40 min. That ranks 43rd of 64 Louisiana counties for outage time, where 1st has the most.
September is the riskiest month: it accounted for 46% 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. Tammany Parish has fallen recently: about 4 hr 13 min per customer per year in 2022–2025, versus 31 hr 37 min in 2018–2021.
The most recent significant outage on record (Dec 29, 2025) affected 2,599 customers (1.6%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Aug 29 – Sep 10, 2021 | 130,114(79.2%) | 13 | Tornadoes |
| 2 | Oct 28–31, 2020 | 80,509(49%) | 4 | Hurricane Zeta |
| 3 | Oct 26–28, 2019 | 40,301(24.5%) | 3 | High winds |
| 4 | Sep 11–13, 2024 | 33,719(20.5%) | 3 | Flooding |
| 5 | Apr 9–13, 2024 | 28,799(17.5%) | 5 | Tornadoes |
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. Tammany Parish?
Electric companies with service territory in St. Tammany Parish (EIA-861, 2025)
| Utility | Type | Customers (LA) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Entergy Louisiana | Investor Owned | 1,129,260 | Not reporting | |
| Cleco | Investor Owned | 295,892 | Not reporting | |
| Washington-St Tammany E C, Inc | Cooperative | 55,871 | Not reporting |
Customer counts are each utility's statewide total in Louisiana. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No St. Tammany Parish outage headlines in the past week.
Cities in St. Tammany Parish
Slidell
Nearby counties
St. Tammany Parish power outage FAQ
Is the power out in St. Tammany Parish right now?
No outages are currently reported for St. Tammany Parish 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. Tammany Parish?
According to EIA-861 service territory data, Entergy Louisiana LLC, Cleco Power LLC, Washington-St Tammany E C, Inc provide electric service in St. Tammany Parish, Louisiana.
What was the worst power outage in St. Tammany Parish?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Aug 29 – Sep 10, 2021. It peaked at 130,114 customers without power (79.2% of the county). NOAA storm reports for that period point to tornadoes.
How often does the power go out in St. Tammany Parish?
EAGLE-I has recorded 233 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 17 hr 55 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. Tammany Parish, LA Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/louisiana/st-tammany-parish