Sugar Hill, Georgia: natural disaster risk
How exposed Sugar Hill is to floods, storms and other hazards, from FEMA and NOAA records for Gwinnett County.
Sugar Hill is a city of 26,128 people in Gwinnett County, Georgia. FEMA's National Risk Index rates Gwinnett County relatively high for natural hazards overall, higher than most of the US. The costliest hazards there are inland flooding, tornado and cold wave, with about $211 million in expected losses a year across the county. The weather service has logged 713 storm reports in the county since 1956, including 12 tornadoes and 43 floods. NOAA hurricane records show 0 hurricanes and 9 tropical storms passing within 65 miles of the county's center. About 0.4% of homes in the county carry federal flood insurance.
Risk figures are for Gwinnett County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Sugar Hill
Full Gwinnett County report ›- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $145M | |
| Tornado | $23M | |
| Cold wave | $11M | |
| Earthquake | $10M | |
| Hail | $7M | |
| Heat wave | $5M | |
| Lightning | $4M | |
| Strong wind | $3M | |
| Ice storm | $2M | |
| Hurricane | $777K | |
| Drought | $249K | |
| Winter weather | $154K |
Homes in Sugar Hill
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Strongest tornadoes in Gwinnett County
More cities in Gwinnett County
Other cities in Georgia
All ›Common questions about Sugar Hill
Is Sugar Hill safe from natural disasters?
Sugar Hill is in Gwinnett County, which FEMA's National Risk Index rates relatively high overall, higher than most of the US. The biggest hazards are inland flooding, tornado, cold wave. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Sugar Hill?
By expected yearly losses in Gwinnett County, the top hazards are inland flooding (High), tornado (High), cold wave (High). Gwinnett County has been part of 13 federal disaster or emergency declarations for natural events.
Does Sugar Hill get tornadoes?
Yes. NOAA records list 12 tornadoes in Gwinnett County since 1950; the strongest was an F2 tornado on June 27, 1994 near Grayson. FEMA rates tornado risk in the county high.
Do I need flood insurance in Sugar Hill?
Standard home insurance does not cover floods. In Gwinnett County, about 0.4% of homes have federal flood insurance, and FEMA rates inland flooding risk high. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.