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

Nez Perce County Disaster Risk

Nez Perce County, Idaho

FEMA Risk Rating

Very Low

National Percentile

33th

of 3,144 counties

State Rank

#26

of 44 (1 = highest risk)

Flood Risk

58th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 58% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 89% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 8% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 38% of US counties

Risk Overview

About Natural Disaster Risk in Nez Perce County, Idaho

Nez Perce County rates well nationally

Nez Perce County's composite risk score of 32.98 falls below the national average, earning a "Very Low" overall rating despite specific hazards in the region. This favorable national standing suggests residents face fewer catastrophic disaster threats than most U.S. counties.

Below-average risk statewide

With a score of 32.98, Nez Perce County sits just below Idaho's state average of 38.51, placing it in the mid-to-lower tier of the state's risk rankings. This balanced profile means the county avoids extreme exposure while still maintaining awareness of regional hazards.

Wildfire risk dominates in North-Central Idaho

Nez Perce County's 32.98 score ranks higher than Payette County (17.11) but below Madison County (58.62), reflecting its mid-range position in the region. The county's notable wildfire risk of 89.34 distinguishes it from some neighbors, making vegetation management especially important.

Wildfires threaten property and air quality

Nez Perce County faces a wildfire risk score of 89.34—among Idaho's highest—due to extensive forests and grasslands that ignite seasonally and spread rapidly. Flood risk at 57.70 represents a secondary threat, particularly in spring when snowmelt and heavy rains overwhelm creeks and rivers.

Prioritize wildfire preparedness and coverage

Homeowners in Nez Perce County should ensure their standard homeowners policy includes wildfire damage coverage and create defensible space by clearing dead vegetation within 100 feet of structures. Consider also reviewing flood insurance options through the National Flood Insurance Program, especially if your home lies in a flood-prone valley or near waterways.

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

Preparedness Guide

What to Prepare for in Nez Perce County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    89th percentile
  2. #2
    FloodPrepare
    58th percentile
  3. #3
    EarthquakePrepare
    38th percentile

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

Risk Advisory: Nez Perce County

Risk Verdict

Compared to the nation's 3,144 counties, Nez Perce County ranks at the 33th percentile for natural disaster risk — toward the safer end of the spectrum. At the 33th percentile nationally, Nez Perce County's natural hazard profile is comparatively favorable — community resilience is reinforced when individual households maintain a reviewed emergency plan.

Hazard Breakdown

Wildfire risk is Nez Perce County's dominant natural hazard, ranked at the 89th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 58th percentile nationally. Additional tracked hazards include earthquake (38th percentile), tornado (8th percentile).

Preparedness Context

Nez Perce County sits at the 89th percentile for wildfire exposure. Signing up for Nez Perce County's county emergency alert system and knowing the pre-planned evacuation route before conditions deteriorate are the two highest-value preparedness actions for residents here. The county's flood exposure at the 58th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. In Nez Perce County, wildfire smoke often precedes the flame front by hours or days; households benefit from tracking EPA's AirNow.gov and having HEPA air filtration available as a first line of indoor protection when air quality alerts are issued.

Regional Context

At 5.5 points below the Idaho state average, Nez Perce County is among the lower-risk counties in the state for natural disaster exposure.

Is your household prepared for Nez Perce 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 Nez Perce County, ID?
Nez Perce County has a FEMA National Risk Index rating of Very Low, placing it in the 33th 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 Nez Perce County?
Nez Perce County is evaluated for five major natural hazard types: wildfire (89th percentile), flooding (58th percentile), earthquake (38th percentile), tornado (8th percentile). The highest-risk hazard is wildfire 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 Nez Perce County risk compare to the Idaho average?
Nez Perce County's composite risk percentile is 33th, compared to the Idaho state average of 39th percentile. The state's overall risk rating is Very Low. This means Nez Perce County faces lower natural disaster risk than the typical county in Idaho.
Is Nez Perce County at risk for wildfire?
Yes, Nez Perce County's wildfire risk is at the 89th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Nez Perce County is at the 58th 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 Nez Perce County a safe place to live?
Nez Perce County's composite risk score of 33th percentile is below the Idaho state average of 39th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 89th 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.