Cobb County, GA Power Outages
Utilities serving Cobb County, Georgia 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.
Cobb County on the Georgia outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Cobb County power outage history
Every significant outage recorded in Cobb County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 131 significant power outages in Cobb County, meaning events that left at least 1% of customers in the dark. The largest (Dec 8–11, 2017) came when a winter storm left 67,177 customers (20.8% of the county) without power.
From 2018 to 2025, the average customer here lost about 2 hr 13 min of power per year, less than the Georgia average of 7 hr 12 min. That ranks 146th of 159 Georgia counties for outage time, where 1st has the most.
October is the riskiest month: it accounted for 26% of all customer outage time from 2018 to 2025. On 9 days in that period, at least 5% of customers were out at the same time. Outage time in Cobb County has held roughly steady recently: about 2 hr 25 min per customer per year in 2022–2025, versus 2 hr 2 min in 2018–2021.
The most recent significant outage on record (Oct 14, 2025) affected 3,458 customers (1.1%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Dec 8–11, 2017 | 67,177(20.8%) | 4 | Winter storm |
| 2 | Oct 29–31, 2020 | 65,007(20.2%) | 3 | Hurricane Zeta |
| 3 | Jun 7–8, 2025 | 38,496(11.9%) | 2 | Severe thunderstorms |
| 4 | Jun 25–26, 2023 | 22,843(7.1%) | 2 | Severe thunderstorms |
| 5 | Feb 16, 2025 | 22,023(6.8%) | 1 | 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 Cobb County?
Electric companies with service territory in Cobb County (EIA-861, 2025)
| Utility | Type | Customers (GA) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Georgia Power | Investor Owned | 2,833,530 | Not reporting | |
| Cobb EMC | Cooperative | 226,844 | Not reporting | |
| GreyStone Power | Cooperative | 156,150 | Not reporting | |
| City of Marietta - (GA) | Municipal | 42,732 | Not reporting | |
| City of Acworth - (GA) | Municipal | 6,954 | Not reporting |
Customer counts are each utility's statewide total in Georgia. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Cobb County outage headlines in the past week.
Cities in Cobb County
Mableton, Marietta, Smyrna, Kennesaw, Acworth, Powder Springs
Nearby counties
Cobb County power outage FAQ
Is the power out in Cobb County right now?
No outages are currently reported for Cobb 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 Cobb County?
According to EIA-861 service territory data, Georgia Power Co, Cobb Electric Membership Corp, GreyStone Power Corporation, City of Marietta - (GA) and 1 others provide electric service in Cobb County, Georgia.
What was the worst power outage in Cobb County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Dec 8–11, 2017. It peaked at 67,177 customers without power (20.8% of the county). NOAA storm reports for that period point to winter storm.
How often does the power go out in Cobb County?
EAGLE-I has recorded 131 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 2 hr 13 min of power per year, and on 9 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. "Cobb County, GA Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/georgia/cobb-county