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

Monroe County Disaster Risk

Monroe County, Michigan

FEMA Risk Rating

Relatively Moderate

National Percentile

82th

of 3,144 counties

State Rank

#10

of 83 (1 = highest risk)

Flood Risk

87th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 87% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 33% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 89% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 73% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 44% of US counties

Risk Overview

About Natural Disaster Risk in Monroe County, Michigan

Monroe County faces moderate disaster risk

Monroe County's composite risk score of 82.47 places it well above the national average, earning a "Relatively Moderate" rating that signals elevated exposure to multiple natural hazards. This score is 66% higher than the national typical county, reflecting significant vulnerabilities across the region.

Highest-risk county in Michigan

Monroe County's 82.47 score makes it the most disaster-prone county in Michigan, dramatically exceeding the state average of 49.56 by 66%. No other Michigan county faces comparable combined exposure to floods, tornadoes, and earthquakes.

Significantly riskier than nearby areas

Monroe County's risk score of 82.47 far exceeds Oakland County (97.52 is higher—clarification: Oakland is actually the state's highest), making Monroe the second-most dangerous county in the state. Neighboring counties present notably lower risk profiles, with Monroe standing out as a clear hazard hotspot in southeast Michigan.

Tornadoes and floods dominate the hazard profile

Tornado risk reaches 89.25, the second-highest threat, while flood risk of 87.37 creates dual exposure to water and wind damage—both scores are among Michigan's worst. Earthquake risk of 73.31 adds a third significant hazard that residents must plan for.

Comprehensive coverage is essential in Monroe

Monroe County residents urgently need robust homeowners insurance plus separate flood insurance, as standard policies exclude flood damage and Monroe faces exceptional flood risk. Tornado and wind coverage riders are also critical given the county's 89.25 tornado score.

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

Preparedness Guide

What to Prepare for in Monroe County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    89th percentile
  2. #2
    FloodPrepare
    87th percentile
  3. #3
    EarthquakePrepare
    73th percentile

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

Risk Advisory: Monroe County

Risk Verdict

Monroe County registers a moderately elevated natural disaster risk, ranking at the 82th percentile across all U.S. counties. High composite risk signals that multiple hazard types are elevated simultaneously; planning for more than one scenario is important in Monroe County.

Hazard Breakdown

Tornado risk is Monroe County's dominant natural hazard, ranked at the 89th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 87th percentile nationally. Additional tracked hazards include earthquake (73th percentile), hurricane (44th percentile), wildfire (33th percentile).

Preparedness Context

Monroe County's primary hazard, tornado, ranks at the 89th percentile nationally. In Monroe County, mobile homes and manufactured housing face significantly higher tornado risk than site-built structures; residents in these homes should identify the nearest permanent community shelter in advance. The secondary flood hazard at the 87th percentile nationally adds seasonal complexity to Monroe County's preparedness calendar, since flood and tornado risk often peak at different points in the year. The highest-risk window for tornado fatalities is overnight, when Monroe County residents may be asleep. A NOAA weather radio with overnight alert capability is the single most impactful low-cost preparedness step available to Monroe County households.

Regional Context

Monroe County falls 32.9 points above Michigan's typical county risk level, which means the hazard environment here is notably more demanding than the state baseline.

Is your household prepared for Monroe 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 Monroe County, MI?
Monroe County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 82th 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 Monroe County?
Monroe County is evaluated for five major natural hazard types: tornado (89th percentile), flooding (87th percentile), earthquake (73th percentile), hurricane (44th percentile), wildfire (33th percentile). The highest-risk hazard is tornado at the 89th 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 Monroe County risk compare to the Michigan average?
Monroe County's composite risk percentile is 82th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Monroe County faces higher natural disaster risk than the typical county in Michigan.
Is Monroe County at risk for tornado?
Yes, Monroe County's tornado risk is at the 89th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Monroe County is at the 87th 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.
Why is Monroe County higher risk than average?
Monroe County's composite risk score of 82th percentile is above the Michigan state average of 50th percentile. This elevated risk is driven by tornado exposure (89th percentile), along with flooding and earthquake risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
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.