Tornado Risk in Cobb County, GA
Cobb County's tornado history, by the numbers
33 tornado tracks have crossed Cobb County since 1953 by NOAA's count, roughly one every 2.3 years - the Elevated band on this site's scale. That is the 73rd percentile nationally for tornado frequency. Georgia has 159 counties in this dataset; Cobb County ranks 6 of them by frequency.
The number that matters more than frequency
Yes. Cobb County has recorded 1 EF4 or EF5 tornado - the strength FEMA's own safe-room guidance is built around, because a standard code-built house is not expected to survive those winds without a hardened room. A county can be lower-frequency overall and still carry this history.
Shelter and safe-room economics
Georgia does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Cobb County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
787,538 people live in Cobb County, and a tornado outbreak's power loss usually reaches far more of Georgia than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
Wind damage may need its own endorsement
Georgia is one of a handful of states where insurers can write wind/hail damage out of a standard homeowners policy - tornado damage may not be fully covered without a separate wind endorsement. Worth confirming directly on a Cobb County policy rather than assuming it is included.
What Cobb County's figure does not tell you
Cobb County's figure is county-wide, not address-specific. Cobb County covers about 340 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Cobb County has about 787,538 residents.