Electric companies in Cobb County, Georgia
Cobb County, GA ranks 1st of 159 Georgia counties for tornado risk, FEMA score 98.3. Cobb County, GA has 769,152 residents. Cobb County, GA: 4 utilities listed by EIA. Cobb County, GA: home electricity prices of 11.41 to 15.49 cents per kWh.
Cobb County, GA on the map
Cobb County, GA darker: more storm events
Outage risk in Cobb County, GA
Cobb County, GA, NWS storm events 2015 to 2025: 89 in all, 11.6 per 100,000 residents of 769,152, rank 40 of 159 Georgia counties. Property damage in Cobb County, GA: $624K, with 3 direct injuries or deaths.
Events by year in Cobb County, GA
events a year, Cobb County, GA
- 6'15
- 6'16
- 13'17
- 7'18
- 3'19
- 8'20
- 5'21
- 13'22
- 16'23
- 5'24
- 7'25
Events by type
| Cobb County, GA | FEMA | Score | Rank | Events | Peak | Damage |
|---|---|---|---|---|---|---|
| Cobb County, GA, thunderstorm and high wind | Relatively Moderate | 83.6 | 7 of 159 | 76 | 2023 (15) | $423K |
| Cobb County, GA, tornado | Relatively High | 98.3 | 1 of 159 | 4 | 2016 (1) | $150K |
| Cobb County, GA, hurricane and tropical storm | Relatively Low | 68.1 | 88 of 159 | 3 | 2017 (1) | $51K |
| Cobb County, GA, ice storm | Relatively High | 93.5 | 3 of 159 | 1 | 2015 (1) | $0 |
| Cobb County, GA, winter storm and heavy snow | Relatively Moderate | 75.4 | 2 of 159 | 5 | 2017 (2) | $0 |
| Cobb County, GA, heat wave | Relatively Moderate | 89.0 | 9 of 159 | 0 | none | $0 |
Cost of living with electricity in Cobb County, GA
Cobb County, GA: electricity $1,431 a year per home (DOE LEAD), all home energy $1,942, 1.6% of $122,769 income. 291,171 households in Cobb County, GA spend about $416.7 million a year on electricity and $565.5 million on all home energy. Lower-income homes in Cobb County, GA ($21,990 a year) spend 7.4% of income, 4.7 times the all-home figure.
Energy burden in Cobb County, GA
| Cobb County, GA | Homes | Income | Power | Gas | Other | Burden |
|---|---|---|---|---|---|---|
| Cobb County, GA, all households | 291,171 | $122,769 | $1,431 | $504 | $7 | 1.6% |
| Cobb County, GA, lower income | 48,479 | $21,990 | $1,199 | $412 | $8 | 7.4% |
| Cobb County, GA, owners | 193,617 | $150,321 | $1,601 | $597 | $9 | 1.5% |
| Cobb County, GA, renters | 97,554 | $68,087 | $1,093 | $319 | $3 | 2.1% |
Housing and heating in Cobb County, GA
Cobb County, GA: 87,173 of 311,556 homes were built before 1980 and 89,941 in 2000 or later. Cobb County, GA has 204,162 detached houses, 69,319 homes in 5+ unit buildings, 3,173 mobile homes, and 96,846 of 293,410 households rent.
Age of homes in Cobb County, GA
% of homes by decade built, Cobb County, GA
- 1pre-40
- 140s
- 450s
- 860s
- 1570s
- 2480s
- 1990s
- 1800s
- 1010s
- 120+
Heating fuel in Cobb County, GA
| Cobb County, GA | Value | State median | Gap | Rank (1 = highest) |
|---|---|---|---|---|
| Cobb County, GA, median year built | 1989 | 1987 | +2 years | 60 of 159 |
| Cobb County, GA, built before 1980 | 28.0% | 38.8% | -10.8 points | 123 of 159 |
| Cobb County, GA, built 2000 or later | 28.9% | 25.4% | +3.5 points | 60 of 159 |
| Cobb County, GA, detached houses | 65.5% | 64.6% | +0.9 points | 74 of 159 |
| Cobb County, GA, apartments in 5+ unit buildings | 22.2% | 4.0% | +18.3 points | 4 of 159 |
| Cobb County, GA, mobile homes | 1.0% | 22.1% | -21.0 points | 157 of 159 |
| Cobb County, GA, renter households | 33.0% | 28.6% | +4.4 points | 56 of 159 |
| Cobb County, GA, median home value | $373,700 | $161,000 | +$212,700 | 6 of 159 |
| Cobb County, GA, median gross rent a month | $1,640 | $847 | +$793 | 5 of 159 |
| Cobb County, GA, people per household | 2.59 | 2.61 | -0.02 | 84 of 159 |
Flood claims and flood insurance in Cobb County, GA
Cobb County, GA: 345 NFIP flood claims in 2015 to 2025, $9.7M paid, median paid claim $18,258.
2,144 of 223,468 residential structures in Cobb County, GA carry an NFIP contract. 2,456 NFIP policies of any type were in force in Cobb County, GA on 8 Sep 2026. Cobb County, GA lists 132 repetitive-loss properties, 21 of them severe repetitive loss.
Cobb County, GA: claims history, not an outage count.
Flood claims by year in Cobb County, GA
flood claims a year, Cobb County, GA
- 22'15
- 8'16
- 11'17
- 14'18
- 10'19
- 37'20
- 126'21
- <5'22
- 43'23
- 62'24
- 8'25
| Cobb County, GA | Value | Median county | Rank (1 = highest) |
|---|---|---|---|
| Cobb County, GA, claims 2015-2025 | 345 | — | 5 of 91 |
| Cobb County, GA, paid 2015-2025 | $9.7M | — | 4 of 91 |
| Cobb County, GA, median paid claim | $18,258 | — | — |
| Cobb County, GA, claims per 1,000 homes | 1.5 | 1.1 | 34 of 91 |
| Cobb County, GA, homes with flood insurance | 1.0% | 0.3% | 25 of 152 |
| Cobb County, GA, policies in force | 2,456 | — | — |
| Cobb County, GA, repetitive-loss properties | 132 | — | — |
Cobb County, GA: OpenFEMA NFIP, claims as of 8 Sep 2026, insured share as of 3 Aug 2026; counts under 5 are hidden.
Cobb County, GA: flood claims by state, flood hub.
Climate and electric heating in Cobb County, GA
Cobb County, GA totals 3,033 heating degree days and 1,655 cooling degree days a year (1991-2020 normal).
For heating, Cobb County, GA is the 28th coldest of 159 counties in Georgia: 3,033 against a median of 2,315. For cooling, Cobb County, GA is the 126th hottest: 1,655 against a median of 2,094.
Cobb County, GA sits between climates, 1,378 degree days separate heating and cooling.
Cobb County, GA averaged 2,681 heating degree days in 2016-2025 against a 3,033 normal, 12% fewer.
In Cobb County, GA, 29.6% of 293,410 homes heat with electricity; the other 70.4% use another main heating fuel.
| Cobb County, GA | Value | GA median county | Cobb County, GA, rank (1 = highest) |
|---|---|---|---|
| Cobb County, GA, heating degree days, 1991-2020 normal | 3,033 | 2,315 | 28 of 159 |
| Cobb County, GA, heating degree days, 2016-2025 mean | 2,681 | 2,033 | 27 of 159 |
| Cobb County, GA, cooling degree days, 1991-2020 normal | 1,655 | 2,094 | 126 of 159 |
| Cobb County, GA, cooling degree days, 2016-2025 mean | 1,821 | 2,240 | 127 of 159 |
| Cobb County, GA, electric heating, ACS 2019-2023 | 29.6% | 74.7% | 158 of 159 |
Cobb County, GA: ACS B25040, 293,410 homes; NOAA nClimDiv, retrieved 7 Oct 2026.
Facts about Cobb County, GA
- Residents of Cobb County, GA, ACS 2023
- 769,1523 of 159 Georgia counties
- Households in Cobb County, GA
- 293,4102.62 people each
- Owner-occupied homes in Cobb County, GA
- 67.0%196,564 owner and 96,846 renter households
- Median household income in Cobb County, GA
- $98,7125 of 159 Georgia counties
- Housing units in Cobb County, GA
- 311,55618,146 vacant or seasonal, 5.8% of the units
- Homes heated by electricity in Cobb County, GA
- 29.6%86,733 homes, 158 of 159 Georgia counties
- Utilities listed for Cobb County, GA
- 44 with a home price: Cobb Electric Membership Corp, City of Marietta, GreyStone Power Corporation
- Lowest home price in Cobb County, GA
- 11.41 ¢/kWhCobb Electric Membership Corp, 26.4% below the highest
- Highest home price in Cobb County, GA
- 15.49 ¢/kWhGeorgia Power Co
- Monthly bill gap in Cobb County, GA
- $44between the two at 1,074 kWh, $527 a year, 0.53% of the Cobb County, GA median income
- ZIP areas touching Cobb County, GA
- 1930008 to 30339
- Outage-linked storm events in Cobb County, GA
- 89NWS storm events, 2015 to 2025
- Homes built before 1980 in Cobb County, GA
- 28.0%median year built 1989
- Flood claims in Cobb County, GA
- 345NFIP 2015 to 2025, $9.7M paid
- Home energy burden in Cobb County, GA
- 1.6%$1,431 a year on electricity (DOE LEAD)
Electricity price since 2015 in Cobb County, GA
Georgia Power Co charged Cobb County, GA homes 12.15 ¢/kWh in 2015. Cobb County, GA: 15.49 ¢ in 2024, 27% up. Cobb County, GA: against 22% up for the Georgia average.
Cobb County, GA: a 1,074 kWh month at that price. Cobb County, GA: $130 in 2015, $166 in 2024. Cobb County, GA: $1,997 a year, 2.0% of the $98,712 median income.
Cobb: 10 yearly prices
| Year | Georgia Power Co, Cobb County, GA | Cobb: Gap to Georgia average | Cobb: Gap to U.S. average |
|---|---|---|---|
| 2015, Cobb | 12.15 | +0.61 | -0.50 |
| 2016, Cobb | 12.10 | +0.60 | -0.45 |
| 2017, Cobb | 12.38 | +0.48 | -0.51 |
| 2018, Cobb | 11.63 | +0.16 | -1.24 |
| 2019, Cobb | 12.10 | +0.34 | -0.91 |
| 2020, Cobb | 12.38 | +0.36 | -0.77 |
| 2021, Cobb | 13.22 | +0.71 | -0.44 |
| 2022, Cobb | 15.18 | +1.38 | +0.14 |
| 2023, Cobb | 14.62 | +0.93 | -1.38 |
| 2024, Cobb | 15.49 | +1.41 | -0.99 |
Cobb County, GA: EIA-861 home prices, 2015 to 2024, not a Cobb County, GA price.
CSVElectric utilities in Cobb County, GA
| Utility listed for Cobb County, GA | Type | Home price ¢/kWh | Yearly bill at 1,074 kWh | Share of Cobb County, GA median income of $98,712 |
|---|---|---|---|---|
| Cobb Electric Membership Corp in Cobb County, GA | Cooperative | 11.41 | $1,470 | 1.49% |
| City of Marietta in Cobb County, GA | Municipal | 11.93 | $1,538 | 1.56% |
| GreyStone Power Corporation in Cobb County, GA | Cooperative | 12.22 | $1,575 | 1.60% |
| Georgia Power Co in Cobb County, GA | Investor Owned | 15.49 | $1,996 | 2.02% |
Prices are statewide utility averages, not a county price.
Analyst note on Cobb County, GA
86,733 of the 293,410 homes in Cobb County, GA heat with electricity. Cobb County, GA counts 769,152 residents in 293,410 households. Cobb County, GA touches 19 ZIP areas, 30008 to 30339, about 40,482 residents each.
Household income in Cobb County, GA is $98,712; 196,564 of its 293,410 households own. Cobb County, GA has 311,556 housing units, 18,146 (5.8%) vacant or seasonal, and 96,846 rented homes. Cobb County, GA logged 89 storm events for its 769,152 residents.
The median home in Cobb County, GA dates from 1989. Homes in Cobb County, GA pay $1,431 a year for electricity. Cobb County, GA home electricity prices run Cobb Electric Membership Corp to Georgia Power Co, $44 a month apart at 1,074 kWh.
Bill and heat pump calculator, Cobb County, GA
Compare Cobb County, GA with its neighbours
- Fulton County sits 10 miles southeast of Cobb County, GA, with 1,068,507 residents against 769,152 there, 217 storm events against 89, median home built 1992 against 1989, energy burden 1.4% against 1.6%, income $91,490 against $98,712.
- Paulding County sits 16 miles west of Cobb County, GA, with 174,292 residents against 769,152 there, 150 storm events against 89, median home built 2001 against 1989, energy burden 1.8% against 1.6%, income $94,557 against $98,712.
- Douglas County sits 19 miles southwest of Cobb County, GA, with 146,141 residents against 769,152 there, 184 storm events against 89, median home built 1996 against 1989, energy burden 2.1% against 1.6%, income $80,764 against $98,712.
- Cherokee County sits 20 miles north of Cobb County, GA, with 274,539 residents against 769,152 there, 204 storm events against 89, median home built 2000 against 1989, energy burden 1.6% against 1.6%, income $105,442 against $98,712.
- DeKalb County sits 20 miles southeast of Cobb County, GA, with 762,105 residents against 769,152 there, 153 storm events against 89, median home built 1983 against 1989, energy burden 1.7% against 1.6%, income $77,683 against $98,712.
Cities in Cobb County, GA
- Marietta electricity rates61,773 residents
- Smyrna electricity rates56,285 residents
- Mableton electricity rates42,403 residents
- Kennesaw electricity rates33,627 residents
ZIP codes in Cobb County, GA
- 30008
- 30060
- 30062
- 30064
- 30066
- 30067
- 30068
- 30080
- 30082
- 30090
- 30101
- 30106
- 30111
- 30126
- 30127
- 30144
- 30152
- 30168
- 30339
Georgia: home prices since 2001, planned plants.
Questions on Cobb County, GA
Cobb County, GA: what do homes pay for electricity?
Cobb County, GA homes paid 11.41 to 15.49 cents per kWh in 2024 across 4 listed utilities: $122 to $166 a month at 1,074 kWh, 1.49% to 2.02% of Cobb County, GA income.
Cobb County, GA: how many homes heat with electricity?
Cobb County, GA: 86,733 of 293,410 occupied homes, 29.6%, rank 158 of 159.
Cobb County, GA: median household income?
$98,712 in Cobb County, GA, rank 5 of 159; 769,152 residents, 293,410 households.
Cobb County, GA: outage-linked storms since 2015?
Cobb County, GA: 89 NWS events, peak year 2023.
Cobb County, GA: flood insurance claims since 2015?
Cobb County, GA: 345 NFIP flood claims, $9.7M paid, 1.5 per 1,000 homes, 1.0% of homes insured.
How old are the homes in Cobb County, GA?
Cobb County, GA: median home built 1989; 28.0% predate 1980, 65.5% detached, 22.2% in 5+ unit buildings.
Cobb County, GA: share of income for energy?
Cobb County, GA homes spend $1,431 a year on electricity, $1,942 on all energy: 1.6% of $122,769; 7.4% for lower incomes.