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

Polk County Disaster Risk

Polk County, Minnesota

FEMA Risk Rating

Relatively Low

National Percentile

67th

of 3,144 counties

State Rank

#20

of 87 (1 = highest risk)

Flood Risk

70th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 70% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 83% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 47% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 6% of US counties

Risk Overview

About Natural Disaster Risk in Polk County, Minnesota

Polk County's risk significantly outpaces U.S. average

Polk County scores 67.05 on the composite risk scale, placing it substantially above the national average and into the higher end of "Relatively Low" territory. This elevation is driven by combined flood (69.85) and wildfire (83.37) exposure that reflects the county's boreal forest and river systems. The score demands more active preparation than many American counties face.

Polk ranks among Minnesota's higher-risk counties

Polk County's composite score of 67.05 significantly exceeds Minnesota's state average of 42.38, placing it in the upper quarter of the state's 87 counties. This ranking is driven by the state's second-highest wildfire risk (83.37) and above-average flood exposure from the Red River and tributaries. Polk's risk profile makes it notably more vulnerable than most Minnesota counties.

Polk faces Minnesota's most concentrated wildfire exposure

Polk County's score of 67.05 marginally exceeds Pennington County to the south (46.98) and approaches the state's highest-risk areas. Its wildfire risk of 83.37 represents Minnesota's most extreme exposure, driven by continuous boreal forest that covers the vast majority of the county. The 69.85 flood risk reflects the Red River's western border exposure and seasonal flooding dynamics affecting northwestern Minnesota.

Wildfire and flooding define Polk County hazards

Wildfire risk reaches 83.37—Minnesota's highest—reflecting the county's vast boreal forest that creates substantial fuel for large fires during dry seasons, particularly spring and fall. Flood risk scores 69.85, driven by the Red River that forms Polk's western border and periodically overflows its banks during heavy spring snowmelt and summer rains. Tornado risk is moderate at 47.46, below the state's most tornado-prone counties.

Invest in fire and flood coverage for Polk County

Purchase a dedicated wildfire rider for your homeowners policy and a separate National Flood Insurance Program policy—neither risk is covered by standard homeowners insurance. Create defensible space by removing dead vegetation and pruning tree canopies within 100 feet of structures, particularly critical given Polk's extreme wildfire exposure. Document your home's replacement cost and review all coverage annually with an insurance agent familiar with northwestern Minnesota risks.

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

Preparedness Guide

What to Prepare for in Polk County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    83th percentile
  2. #2
    FloodPrepare
    70th percentile
  3. #3
    TornadoPrepare
    47th percentile

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

Risk Advisory: Polk County

Risk Verdict

With a national percentile rank of 67th, Polk 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 Polk County's dominant natural hazard, ranked at the 83th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 70th percentile nationally. Additional tracked hazards include tornado (47th percentile), earthquake (6th percentile).

Preparedness Context

At the 83th percentile nationally for wildfire risk, Polk 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 70th percentile nationally means Polk 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 Polk County residents.

Regional Context

At 24.7 points above the Minnesota state average, Polk County carries meaningfully higher natural disaster exposure than a typical Minnesota county.

Is your household prepared for Polk 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 Polk County, MN?
Polk County has a FEMA National Risk Index rating of Relatively Low, placing it in the 67th 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 Polk County?
Polk County is evaluated for five major natural hazard types: wildfire (83th percentile), flooding (70th percentile), tornado (47th percentile), earthquake (6th percentile). The highest-risk hazard is wildfire at the 83th 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 Polk County risk compare to the Minnesota average?
Polk County's composite risk percentile is 67th, compared to the Minnesota state average of 42th percentile. The state's overall risk rating is Very Low. This means Polk County faces higher natural disaster risk than the typical county in Minnesota.
Is Polk County at risk for wildfire?
Yes, Polk County's wildfire risk is at the 83th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Polk County is at the 70th 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 Polk County higher risk than average?
Polk County's composite risk score of 67th percentile is above the Minnesota state average of 42th percentile. This elevated risk is driven by wildfire exposure (83th 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.