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

Martin County Disaster Risk

Martin County, Minnesota

FEMA Risk Rating

Relatively Low

National Percentile

45th

of 3,144 counties

State Rank

#38

of 87 (1 = highest risk)

Flood Risk

39th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 39% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 18% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 69% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 15% of US counties

Risk Overview

About Natural Disaster Risk in Martin County, Minnesota

Martin County faces above-average risk

Martin County's composite risk score of 45.48 exceeds the national average, placing it in the relatively low risk category. Tornado exposure is a key driver of this elevated ranking.

Above Minnesota average, tornado-heavy

Martin County's score of 45.48 tops the state average of 42.38, mainly due to its exceptionally high tornado risk (68.51). This makes it one of the more tornado-prone counties in Minnesota.

Tornado risk highest in region

Martin County's tornado risk (68.51) substantially exceeds that of McLeod County (67.88), Meeker County (48.44), and other nearby counties. It represents a notable concentration of tornado exposure in south-central Minnesota.

Tornadoes pose primary threat

Tornado risk (68.51) dominates Martin County's natural disaster profile, ranking in the upper tier statewide. Flood risk (39.31) and earthquake risk (14.79) are secondary concerns.

Storm shelter and coverage critical

Martin County residents should prioritize homeowners insurance with comprehensive wind and hail coverage to protect against tornado damage. A reinforced shelter or safe room offers additional critical protection during severe storm events.

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

Preparedness Guide

What to Prepare for in Martin County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    69th percentile
  2. #2
    FloodPrepare
    39th percentile
  3. #3
    WildfirePrepare
    18th percentile

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

Risk Advisory: Martin County

Risk Verdict

With a national percentile rank of 45th, Martin County faces below-average hazard exposure relative to U.S. counties as a whole. The 45th percentile national ranking is one lens; Martin County residents also benefit from reviewing which specific hazard types drive the county's composite score and preparing accordingly.

Hazard Breakdown

Tornado risk is Martin County's dominant natural hazard, ranked at the 69th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 39th percentile nationally. Additional tracked hazards include wildfire (18th percentile), earthquake (15th percentile).

Preparedness Context

At the 69th percentile nationally for tornado risk, Martin County households benefit most from a reliable alert system — a NOAA weather radio that activates during overnight hours when residents may not be checking smartphone alerts. Alongside tornado exposure, flood at the 39th percentile nationally means Martin County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. For Martin County households, a pre-decided family shelter plan — who goes where, how children are retrieved from school during a warning, and a neighborhood meet-up point if phones fail — provides real protection that no supply kit alone can replicate.

Regional Context

Martin County tracks the Minnesota county average closely, sitting 3.1 composite points above the state mean — neither a standout high-risk nor low-risk county within Minnesota.

Is your household prepared for Martin 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 Martin County, MN?
Martin County has a FEMA National Risk Index rating of Relatively Low, placing it in the 45th 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 Martin County?
Martin County is evaluated for five major natural hazard types: tornado (69th percentile), flooding (39th percentile), wildfire (18th percentile), earthquake (15th percentile). The highest-risk hazard is tornado at the 69th 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 Martin County risk compare to the Minnesota average?
Martin County's composite risk percentile is 45th, compared to the Minnesota state average of 42th percentile. The state's overall risk rating is Very Low. This means Martin County faces higher natural disaster risk than the typical county in Minnesota.
Is Martin County at risk for tornado?
Yes, Martin County's tornado risk is at the 69th percentile nationally. This is above the national median. For flooding specifically, Martin County is at the 39th 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 Martin County higher risk than average?
Martin County's composite risk score of 45th percentile is above the Minnesota state average of 42th percentile. This elevated risk is driven by tornado exposure (69th percentile). 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.