Greenwood, Indiana: natural disaster risk
How exposed Greenwood is to floods, storms and other hazards, from FEMA and NOAA records for Johnson County.
Greenwood is a city of 66,029 people in Johnson County, Indiana. FEMA's National Risk Index rates Johnson County relatively low for natural hazards overall, lower than most of the US. The costliest hazards there are inland flooding, tornado and strong wind, with about $53.5 million in expected losses a year across the county. The weather service has logged 432 storm reports in the county since 1954, including 24 tornadoes and 39 floods. About 0.7% of homes in the county carry federal flood insurance.
Risk figures are for Johnson County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Greenwood
Full Johnson 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.
- Secure outdoor furniture and trash bins before storms.
- Have trees near the house checked.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $30M | |
| Tornado | $11M | |
| Strong wind | $4M | |
| Earthquake | $3M | |
| Cold wave | $2M | |
| Hail | $2M | |
| Heat wave | $1M | |
| Lightning | $519K | |
| Winter weather | $460K | |
| Drought | $240K | |
| Ice storm | $196K | |
| Wildfire | $12K |
Homes in Greenwood
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 Johnson County
More cities in Johnson County
Common questions about Greenwood
Is Greenwood safe from natural disasters?
Greenwood is in Johnson County, which FEMA's National Risk Index rates relatively low overall, lower than most of the US. The biggest hazards are inland flooding, tornado, strong wind. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Greenwood?
By expected yearly losses in Johnson County, the top hazards are inland flooding (Moderate), tornado (Moderate), strong wind (High). Johnson County has been part of 14 federal disaster or emergency declarations for natural events.
Does Greenwood get tornadoes?
Yes. NOAA records list 24 tornadoes in Johnson County since 1950; the strongest was an F3 tornado on October 11, 1954. FEMA rates tornado risk in the county moderate.
Do I need flood insurance in Greenwood?
Standard home insurance does not cover floods. In Johnson County, about 0.7% of homes have federal flood insurance, and FEMA rates inland flooding risk moderate. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.