Greene County, Indiana Natural Disaster Risk
FEMA National Risk Index assessment · IN
Very LowComposite Risk Score
National percentile: 42th
Greene County faces very low composite natural disaster risk (NRI Risk Index score 42.5, 42th national percentile), driven primarily by landslide and strong wind exposure. Expected annual loss across all 18 hazard types is $14M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
FEMA's National Risk Index rates Greene County at very low composite risk, with a National Risk Index score of 42.5 out of 100 — placing it in the 42nd national percentile and among the lowest-risk counties in the country. The score blends Expected Annual Loss, Social Vulnerability, and Community Resilience across all 18 FEMA hazard types.
The county's risk is driven primarily by landslide (downhill movement of rock, soil, and debris on unstable slopes) at Medium risk — $48K in expected annual loss and about 0.52 events per year; strong wind (damaging straight-line winds outside of tornadoes and hurricanes) at Medium risk — $1M in expected annual loss and about 4.63 events per year; and earthquake (ground shaking from sudden movement along geologic faults) at Low risk — $1M in expected annual loss and about 0.00 events per year. Across all hazards, FEMA estimates $14M in expected annual loss for a population of 31K.
Beyond physical exposure, Greene County has a low social vulnerability rating (how susceptible the population is to harm) and a medium community resilience rating (its capacity to prepare for and recover from disasters). Both measures sit toward the lower end, indicating relatively modest population sensitivity.
The federal record bears this out: Greene County has received 19 federal disaster declarations since 1979, including 10 for severe storm events and 4 for flood events. The most recent was Severe Winter Storm (winter storm), declared in January 2026.
Among 92 Indiana counties, Greene County ranks #47 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Landslide | Medium | 0.52 / yr | $48K |
| Strong Wind | Medium | 4.63 / yr | $1M |
| Earthquake | Low | 0.00 / yr | $1M |
| Tornado | Low | 0.38 / yr | $2M |
| Winter Weather | Medium | 7.58 / yr | $98K |
| Heat Wave | Low | 5.89 / yr | $577K |
| Drought | Low | 2.19 / yr | $240K |
| Hail | Low | 3.49 / yr | $319K |
| Ice Storm | Low | 0.48 / yr | $95K |
| Riverine Flood | Low | 3.43 / yr | $7M |
| Cold Wave | Low | 1.53 / yr | $485K |
| Lightning | Low | 50.39 / yr | $108K |
| Hurricane | Very Low | 0.01 / yr | $10K |
| Wildfire | Very Low | 0.00 / yr | $3K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Greene County has received 19 federal disaster declarations since 1979, most recently Severe Winter Storm in January 2026. Most frequent causes: Severe Storm (10), Flood (4), Biological (2).
| Declared | Type | Disaster |
|---|---|---|
| January 2026 | Winter Storm | Severe Winter Storm |
| July 2025 | Flood | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding |
| April 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| June 2008 | Severe Storm | Severe Storms, Flooding, and Tornadoes |
| September 2005 | Hurricane | Hurricane Katrina Evacuation |
| January 2005 | Severe Storm | Severe Winter Storms and Flooding |
| January 2005 | Snowstorm | Snow |
| September 2004 | Severe Storm | Severe Storms, Tornadoes and Flooding |
| June 2004 | Severe Storm | Severe Storms, Tornadoes, and Flooding |
Showing the 10 most recent of 19 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Greene County?
Greene County has a composite FEMA National Risk Index score of 42.5 out of 100, placing it in the Very Low category and the 42th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Greene County?
The three highest-rated hazards are Landslide (Medium, $48K EAL), Strong Wind (Medium, $1M EAL), Earthquake (Low, $1M EAL). These account for most of the county's expected annual losses.
How does Greene County compare to other Indiana counties?
Greene County ranks #47 of 92 Indiana counties for overall natural disaster risk, with a very low rating.
How many federally declared disasters has Greene County had?
FEMA records 19 federal disaster declarations for Greene County since 1979, most often 10 for severe storm events and 4 for flood events. The most recent was Severe Winter Storm, declared in January 2026.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Greene County's $14M EAL is a statistical average, not a guarantee for any specific year or address.