riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Iosco County Disaster Risk

Iosco County, Michigan

FEMA Risk Rating

Very Low

National Percentile

38th

of 3,144 counties

State Rank

#53

of 83 (1 = highest risk)

Flood Risk

53th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 53% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 61% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 37% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 24% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 40% of US counties

Risk Overview

About Natural Disaster Risk in Iosco County, Michigan

Iosco ranks among lowest-risk counties

Iosco County's composite risk score of 37.75 sits well below Michigan's state average of 49.56 and substantially below the national median, earning a very low risk rating. Residents here face notably less disaster exposure than most Americans.

Safest natural hazard exposure in Michigan

Iosco County lands in Michigan's safest tier for natural disasters, with minimal exposure to tornadoes, earthquakes, and hurricanes. The county's very low composite risk makes it one of the state's most stable communities for disaster preparedness.

Iosco's safety stands out regionally

Iosco's 37.75 score is notably lower than nearby Kalkaska (21.28) and significantly safer than most other Michigan counties, reflecting its regional advantage. This favorable profile makes Iosco an outlier for natural disaster resilience in northeastern Michigan.

Wildfire and flood are minor concerns

While Iosco's wildfire risk of 60.72 and flood risk of 52.93 exceed some other county risks, both remain relatively modest in statewide and national context. Tornado risk (36.67) rounds out the county's hazard profile with manageable exposure.

Standard coverage likely sufficient here

Iosco's low overall risk means standard homeowners insurance provides reasonable protection for most residents, though flood insurance remains worth evaluating if your property sits near water. Keep gutters clear and maintain proper drainage to manage the modest flood risk.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Iosco County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    61th percentile
  2. #2
    FloodPrepare
    53th percentile
  3. #3
    HurricanePrepare
    40th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Iosco County

Risk Verdict

Iosco County sits in the lower tier of U.S. counties for natural disaster exposure, ranked at the 38th percentile nationally. At the 38th percentile nationally, Iosco County's natural hazard profile is comparatively favorable — community resilience is reinforced when individual households maintain a reviewed emergency plan.

Hazard Breakdown

Wildfire risk is Iosco County's dominant natural hazard, ranked at the 61th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 53th percentile nationally. Additional tracked hazards include hurricane (40th percentile), tornado (37th percentile), earthquake (24th percentile).

Preparedness Context

At the 61th percentile nationally for wildfire risk, Iosco County households benefit from creating defensible space — a buffer of reduced vegetation around structures — and reviewing whether homeowners insurance covers wildfire damage in this region. A secondary flood exposure at the 53th percentile nationally means Iosco County residents face hazards from two distinct natural peril categories during different seasons. Enrolling in the county's wireless emergency alert system and keeping a vehicle at least half-full during peak fire season are low-cost habits that dramatically reduce evacuation lag time for Iosco County residents.

Regional Context

Iosco County falls 11.8 points below Michigan's typical county risk level, making it one of the safer natural-hazard environments in the state.

Is your household prepared for Iosco County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Iosco County, MI?
Iosco County has a FEMA National Risk Index rating of Very Low, placing it in the 38th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Iosco County?
Iosco County is evaluated for five major natural hazard types: wildfire (61th percentile), flooding (53th percentile), hurricane (40th percentile), tornado (37th percentile), earthquake (24th percentile). The highest-risk hazard is wildfire at the 61th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Iosco County risk compare to the Michigan average?
Iosco County's composite risk percentile is 38th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Iosco County faces lower natural disaster risk than the typical county in Michigan.
Is Iosco County at risk for wildfire?
Yes, Iosco County's wildfire risk is at the 61th percentile nationally. This is above the national median. For flooding specifically, Iosco County is at the 53th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Is Iosco County a safe place to live?
Iosco County's composite risk score of 38th percentile is below the Michigan state average of 50th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 61th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.