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

Florence County Disaster Risk

Florence County, Wisconsin

FEMA Risk Rating

Relatively Low

National Percentile

54th

of 3,144 counties

State Rank

#44

of 72 (1 = highest risk)

Flood Risk

11th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 11% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 9% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 11% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 0% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Florence County, Wisconsin

Florence County's minimal hazard profile

Florence County scores just 54.20 on the national composite risk scale, placing it well below the national average and among the nation's safest communities. This county experiences very low exposure to most major natural disaster types.

Wisconsin's lowest-risk counties

At 54.20, Florence County sits substantially below Wisconsin's state average of 59.08, making it one of the safest counties in the state for natural disasters. Few Wisconsin counties offer comparable low-risk profiles.

Region's most secure location

Florence County's 54.20 score is the lowest in its region, significantly safer than Forest County (47.39) represents a neighboring safer area, but Florence itself remains exceptionally protected from natural hazards. Its remarkably low risk across all hazard categories makes it stand out regionally.

Minimal overall hazard exposure

Even Florence County's highest risk—tornado at 11.01—remains far below state and national averages, indicating very low severe weather exposure. All other hazards score in single digits, with flooding at 10.97, wildfire at 8.62, and earthquake virtually absent at 0.48.

Maintain standard coverage

While Florence County's exceptionally low risk profile means comprehensive disaster coverage may be less urgent, standard homeowners insurance remains prudent for basic protection. Annual policy reviews ensure adequate coverage for the rare severe weather events that do occur.

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

Preparedness Guide

What to Prepare for in Florence County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    11th percentile
  2. #2
    FloodPrepare
    11th percentile
  3. #3
    WildfirePrepare
    9th percentile

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

Risk Advisory: Florence County

Risk Verdict

Natural hazard pressure in Florence County is below the national midpoint, with a composite score at the 54th percentile. Proactive emergency planning and awareness of the specific hazards driving Florence County's score can meaningfully reduce household risk.

Hazard Breakdown

Tornado risk is Florence County's dominant natural hazard, ranked at the 11th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 11th percentile nationally. Additional tracked hazards include wildfire (9th percentile), earthquake (0th percentile), hurricane (0th percentile).

Preparedness Context

With tornado ranked at the 11th percentile nationally, Florence County sits in a high-exposure zone where the difference between outcomes often comes down to proximity to a reinforced interior shelter and seconds of warning time. Flood is the second hazard driver for Florence County at the 11th percentile nationally, meaning households should maintain awareness of both severe-weather and flood-specific warning systems. For Florence County households, safe rooms certified to FEMA 320/361 standards offer the highest protection during a direct tornado hit; households without a safe room should locate the innermost lowest-floor room in their building and practice the route to it before storm season.

Regional Context

Florence County's risk score is broadly comparable to the Wisconsin county average, with a 4.9-point gap that places the county near the center of the state's hazard distribution.

Is your household prepared for Florence 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 Florence County, WI?
Florence 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 Florence County?
Florence County is evaluated for five major natural hazard types: tornado (11th percentile), flooding (11th percentile), wildfire (9th percentile), earthquake (0th percentile), hurricane (0th percentile). The highest-risk hazard is tornado at the 11th 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 Florence County risk compare to the Wisconsin average?
Florence County's composite risk percentile is 54th, compared to the Wisconsin state average of 59th percentile. The state's overall risk rating is Relatively Low. This means Florence County faces lower natural disaster risk than the typical county in Wisconsin.
Is Florence County at risk for tornado?
Yes, Florence County's tornado risk is at the 11th percentile nationally. This is below the national median, indicating relatively lower exposure. For flooding specifically, Florence County is at the 11th 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 Florence County a safe place to live?
Florence County's composite risk score of 54th percentile is below the Wisconsin state average of 59th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is tornado at the 11th 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.