Logan County, Colorado Natural Disaster Risk
FEMA National Risk Index assessment · CO
LowComposite Risk Score
National percentile: 59th
Logan County faces low composite natural disaster risk (NRI Risk Index score 58.7, 59th national percentile), driven primarily by hail and strong wind exposure. Expected annual loss across all 18 hazard types is $18M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
Overall natural disaster risk in Logan County is low, with a National Risk Index score of 58.7 out of 100 — placing it in the 59th national percentile and below the national average for natural-disaster risk. 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 hail (ice stones from severe thunderstorms that damage property and crops) at High risk — $2M in expected annual loss and about 6.34 events per year; strong wind (damaging straight-line winds outside of tornadoes and hurricanes) at High risk — $2M in expected annual loss and about 1.86 events per year; and drought (extended dry periods that stress water supplies and agriculture) at Medium risk — $1M in expected annual loss and about 52.93 events per year. Across all hazards, FEMA estimates $18M in expected annual loss for a population of 22K.
Beyond physical exposure, Logan County has a medium social vulnerability rating (how susceptible the population is to harm) and a very low community resilience rating (its capacity to prepare for and recover from disasters). Both measures sit toward the lower end, indicating relatively modest population sensitivity.
History supports the rating: Logan County has received 12 federal disaster declarations since 1965, including 7 for flood events and 2 for biological events. The most recent was Severe Storms, Flooding, and Tornadoes (flood), declared in August 2023.
Among 64 Colorado counties, Logan County ranks #17 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Hail | High | 6.34 / yr | $2M |
| Strong Wind | High | 1.86 / yr | $2M |
| Drought | Medium | 52.93 / yr | $1M |
| Ice Storm | Medium | 0.15 / yr | $383K |
| Cold Wave | Medium | 2.74 / yr | $3M |
| Winter Weather | Medium | 9.95 / yr | $137K |
| Tornado | Medium | 1.82 / yr | $2M |
| Wildfire | Low | 0.00 / yr | $97K |
| Lightning | Low | 47.47 / yr | $249K |
| Riverine Flood | Low | 0.71 / yr | $5M |
| Earthquake | Very Low | 0.00 / yr | $90K |
| Heat Wave | Very Low | 0.58 / yr | $54K |
| Landslide | Very Low | 0.24 / yr | $45 |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Logan County has received 12 federal disaster declarations since 1965, most recently Severe Storms, Flooding, and Tornadoes in August 2023. Most frequent causes: Flood (7), Biological (2), Coastal Storm (1).
| Declared | Type | Disaster |
|---|---|---|
| August 2023 | Flood | Severe Storms, Flooding, and Tornadoes |
| March 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| July 2015 | Flood | Severe Storms, Tornadoes, Flooding, Landslides, and Mudslides |
| September 2013 | Flood | Severe Storms, Flooding, Landslides, and Mudslides |
| September 2013 | Flood | Severe Storms, Flooding, Landslides, and Mudslides |
| September 2005 | Coastal Storm | Hurricane Katrina Evacuation |
| May 2001 | Severe Storm | Severe Winter Storms |
| August 1997 | Flood | Severe Storms, Heavy Rain, Flash Floods, Flooding, Mudslides |
| May 1973 | Flood | Heavy Rains, Snowmelt and Flooding |
Showing the 10 most recent of 12 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Logan County?
Logan County has a composite FEMA National Risk Index score of 58.7 out of 100, placing it in the Low category and the 59th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Logan County?
The three highest-rated hazards are Hail (High, $2M EAL), Strong Wind (High, $2M EAL), Drought (Medium, $1M EAL). These account for most of the county's expected annual losses.
How does Logan County compare to other Colorado counties?
Logan County ranks #17 of 64 Colorado counties for overall natural disaster risk, with a low rating.
How many federally declared disasters has Logan County had?
FEMA records 12 federal disaster declarations for Logan County since 1965, most often 7 for flood events and 2 for biological events. The most recent was Severe Storms, Flooding, and Tornadoes, declared in August 2023.
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. Logan County's $18M EAL is a statistical average, not a guarantee for any specific year or address.