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

Cass County Disaster Risk

Cass County, Minnesota

FEMA Risk Rating

Relatively Low

National Percentile

54th

of 3,144 counties

State Rank

#27

of 87 (1 = highest risk)

Flood Risk

63th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 63% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 63% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 43% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 5% of US counties

Risk Overview

About Natural Disaster Risk in Cass County, Minnesota

Cass County carries moderate U.S. risk profile

Cass County's composite risk score of 53.53 with a "Relatively Low" rating indicates above-average exposure to natural hazards compared to the national baseline. The county faces meaningful threats across multiple hazard types, particularly flooding and wildfire.

Cass ranks above Minnesota's average risk level

With a score of 53.53, Cass County exceeds Minnesota's state average of 42.38, placing it in the higher-risk tier for the state. This elevation reflects the county's northern geography and exposure to water-based hazards.

Cass balances risk with nearby Chisago County

Cass County (53.53) scores lower than Carlton (70.07) but higher than Chisago (44.53), positioning it as a mid-range risk county in the region. The county's unique hazard profile combines forest fire exposure with significant flood and tornado risk.

Floods and wildfires threaten Cass equally

Cass County faces nearly identical flood (63.17) and wildfire (63.20) risk scores, making both hazards equally pressing concerns for residents. Tornadoes add a secondary threat with a score of 42.91, requiring year-round disaster preparedness.

Dual flood and wildfire insurance critical for Cass

Cass homeowners should secure both flood insurance and wildfire coverage, as the county faces substantial risk from both hazards (63.17 and 63.20 respectively). Create a defensible space around your home and maintain an evacuation plan for wildfire season.

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

Preparedness Guide

What to Prepare for in Cass County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    63th percentile
  2. #2
    FloodPrepare
    63th percentile
  3. #3
    TornadoPrepare
    43th percentile

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

Risk Advisory: Cass County

Risk Verdict

With a national percentile rank of 54th, Cass County faces below-average hazard exposure relative to U.S. counties as a whole. Above-average risk does not mean imminent danger; it signals that informed, hazard-specific preparedness has high value here.

Hazard Breakdown

Wildfire risk is Cass County's dominant natural hazard, ranked at the 63th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 63th percentile nationally. Additional tracked hazards include tornado (43th percentile), earthquake (5th percentile).

Preparedness Context

At the 63th percentile nationally for wildfire risk, Cass 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. Alongside wildfire, flood at the 63th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. 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 Cass County residents.

Regional Context

At 11.1 points above the Minnesota state average, Cass County carries meaningfully higher natural disaster exposure than a typical Minnesota county.

Is your household prepared for Cass 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 Cass County, MN?
Cass County has a FEMA National Risk Index rating of Relatively Low, placing it in the 54th 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 Cass County?
Cass County is evaluated for five major natural hazard types: wildfire (63th percentile), flooding (63th percentile), tornado (43th percentile), earthquake (5th percentile). The highest-risk hazard is wildfire at the 63th 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 Cass County risk compare to the Minnesota average?
Cass County's composite risk percentile is 54th, compared to the Minnesota state average of 42th percentile. The state's overall risk rating is Very Low. This means Cass County faces higher natural disaster risk than the typical county in Minnesota.
Is Cass County at risk for wildfire?
Yes, Cass County's wildfire risk is at the 63th percentile nationally. This is above the national median. For flooding specifically, Cass County is at the 63th 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 Cass County higher risk than average?
Cass County's composite risk score of 54th percentile is above the Minnesota state average of 42th percentile. This elevated risk is driven by wildfire exposure (63th percentile), along with flooding 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.