Chisago County
Minnesota — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 45th
Chisago County faces low composite natural disaster risk (NRI Risk Index score 44.5, 45th national percentile), driven primarily by strong wind and hail exposure. Expected annual loss across all 18 hazard types is $23M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Strong Wind | Medium | 3.64 / yr | $2M |
| Hail | Medium | 5.26 / yr | $1M |
| Wildfire | Low | 0.00 / yr | $199K |
| Tornado | Low | 0.23 / yr | $3M |
| Cold Wave | Low | 9.63 / yr | $2M |
| Riverine Flood | Low | 0.18 / yr | $13M |
| Lightning | Low | 33.17 / yr | $438K |
| Landslide | Very Low | 0.07 / yr | $2K |
| Winter Weather | Low | 17.16 / yr | $82K |
| Heat Wave | Low | 2.95 / yr | $357K |
| Ice Storm | Low | 0.39 / yr | $79K |
| Drought | Low | 2.33 / yr | $67K |
| Earthquake | Very Low | 0.00 / yr | $7K |
| 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 |
Frequently Asked Questions
What is the overall natural disaster risk for Chisago County?
Chisago County has a composite FEMA National Risk Index score of 44.5 out of 100, placing it in the Low category and the 45th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Chisago County?
The three highest-rated hazards are Strong Wind (Medium, $2M EAL), Hail (Medium, $1M EAL), Wildfire (Low, $199K EAL). These account for most of the county's expected annual losses.
How does Chisago County compare to other Minnesota counties?
Chisago County ranks #40 of 87 Minnesota counties for overall natural disaster risk, with a low rating.
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. Chisago County's $23M EAL is a statistical average, not a guarantee for any specific year or address.