Power outages in Cobb County, GA
Live outage counts for Mableton, Marietta and Smyrna and the rest of Cobb County, updated every 10 minutes from Georgia Power.
Right now
Normal: scattered outages
i
Normal: fewer than 0.1% of customers out. Elevated: 0.1% or more. Major outage: 1% or more.10customers without power
i
A customer is one electric account, usually one home or business, not one person. Utilities count outages this way.Georgia Power10 / 139,381
Cobb Electric Membership Corpno live feedAlso serves this county, per federal utility records. Check its own outage map.
i
This 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.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.GreyStone Power Corporationno live feedAlso serves this county, per federal utility records. Check its own outage map.
i
This 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.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.City of Marietta - (GA)no live feedAlso serves this county, per federal utility records. Check its own outage map.
i
This 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.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.City of Acworth - (GA)no live feedAlso serves this county, per federal utility records. Check its own outage map.
i
This 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.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
1–1050200+ customers
i
Each dot is an outage the utility reports, placed where the utility puts it, often the middle of the affected area rather than a specific home. Tap a dot for the number of customers and the utility's estimated restoration time.Outages by ZIP code
5 of 17 ZIP codes have outages| ZIP | Area | Out | CustomersiA customer is one electric account, usually one home or business, not one person. Utilities count outages this way. | % outiCustomers without power divided by all the customers the utility serves in this area. |
|---|---|---|---|---|
| 30060 | Marietta / Fair Oaks | fewer than 5 | 3,225 | 0.06% |
| 30062 | Marietta | fewer than 5 | 4,581 | 0.04% |
| 30066 | Marietta | fewer than 5 | 8,917 | 0.02% |
| 30067 | Marietta | fewer than 5 | 6,759 | 0.03% |
| 30152 | Kennesaw / Marietta | fewer than 5 | 3,628 | 0.06% |
| 30008 | Marietta / Fair Oaks | 0 | 1,232 | 0.00% |
| 30064 | Marietta / Powder Springs | 0 | 443 | 0.00% |
| 30068 | Marietta | 0 | 4,877 | 0.00% |
| 30080 | Smyrna | 0 | 30,935 | 0.00% |
| 30082 | Smyrna | 0 | 10,736 | 0.00% |
| 30101 | Acworth / Kennesaw | 0 | 454 | 0.00% |
| 30106 | Austell / Mableton | 0 | 3,386 | 0.00% |
| 30126 | Mableton | 0 | 16,834 | 0.00% |
| 30127 | Powder Springs / Austell | 0 | 6,263 | 0.00% |
| 30144 | Kennesaw / Acworth | 0 | 6,728 | 0.00% |
Outage history in Cobb County
2014–2025 recordCobb County averaged 20.3 significant outages a year in 2023–2025, fewer than most Georgia counties.
In the 12 months to December 2025, there were 16. Half were over within 45 minutes; the longest lasted 11 hours, starting February 16, 2025.
The largest on record began December 8, 2017, with 67,177 customers out at once.
Outages are most common in June.
20.3significant outages a year (2023–2025)
i
At 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.45 minutestypical (median) length
i
Half of significant outages here ended sooner than this, and half lasted longer.2.9 dayslongest on record (December 2017)
67,177most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| December 8, 2017 | 67,177 | 2.9 days | 2,011,389 |
| October 29, 2020 | 65,007 | 2.4 days | 1,235,595 |
| June 7, 2025 | 38,496 | 9.5 hours | 158,481 |
| June 25, 2023 | 22,843 | 7.5 hours | 84,402 |
| February 16, 2025 | 22,023 | 11 hours | 131,134 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From 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
- Georgia Power: outage map and reporting
- Stay at least 35 feet from downed power lines and report them right away.
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.
Utilities
- Georgia Power
- Cobb Electric Membership Corp no live feed
- GreyStone Power Corporation no live feed
- City of Marietta - (GA) no live feed
- City of Acworth - (GA) no live feed
- All Georgia outages