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

Boundary County Disaster Risk

Boundary County, Idaho

FEMA Risk Rating

Very Low

National Percentile

26th

of 3,144 counties

State Rank

#29

of 44 (1 = highest risk)

Flood Risk

46th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 46% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 81% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 4% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 25% of US counties

Risk Overview

About Natural Disaster Risk in Boundary County, Idaho

Boundary's risk profile remains very low

Boundary County scores just 26.08, placing it well below the national average and in the very low risk category. Despite some wildfire exposure at 80.66, other hazards are minimal.

Below-average risk compared to Idaho

At 26.08, Boundary's composite risk falls 32% below Idaho's state average of 38.51, making it one of the safer counties in the state. Only a handful of Idaho counties present lower overall hazard exposure.

Safest county in the northern panhandle

Boundary's 26.08 score sits substantially lower than Bonner's 77.29, reflecting less flood exposure despite sharing similar wildfire geography. The county's remote location and sparse development contribute to its lower composite risk.

Wildfire dominates Boundary's hazard profile

Wildfire risk reaches 80.66, the clear hazard of concern in Boundary County, while flood risk of 45.80 is moderate and earthquakes score just 25.38. Tornado threat is negligible at 3.53.

Wildfire coverage is your priority

While Boundary has lower overall risk than most Idaho counties, wildfire insurance is still essential given your 80.66 exposure score. Standard homeowners policies exclude wildfire, so secure a separate policy to protect against this localized threat.

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

Preparedness Guide

What to Prepare for in Boundary County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    81th percentile
  2. #2
    FloodPrepare
    46th percentile
  3. #3
    EarthquakePrepare
    25th percentile

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

Risk Advisory: Boundary County

Risk Verdict

Boundary County carries a low natural disaster risk burden, scoring at the 26th percentile under the FEMA National Risk Index. Boundary County residents can take confidence from a 26th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Wildfire risk is Boundary County's dominant natural hazard, ranked at the 81th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 46th percentile nationally. Additional tracked hazards include earthquake (25th percentile), tornado (4th percentile).

Preparedness Context

Wildfire ranks as Boundary County's primary hazard at the 81th percentile nationally. For Boundary County households in high-WUI areas, go-bag readiness — the ability to leave within 15 minutes — is more important than shelter-in-place planning for most residential properties. The county's flood exposure at the 46th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. Boundary County county's local emergency management office publishes community-specific wildfire risk assessments and evacuation zone maps; households should review their zone assignment and sign up for zone-specific alerts.

Regional Context

Compared to the Idaho county average, Boundary County's composite score runs 12.4 points lower — a gap that reflects the county's relatively modest hazard profile within its state context.

Is your household prepared for Boundary 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 Boundary County, ID?
Boundary County has a FEMA National Risk Index rating of Very Low, placing it in the 26th 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 Boundary County?
Boundary County is evaluated for five major natural hazard types: wildfire (81th percentile), flooding (46th percentile), earthquake (25th percentile), tornado (4th percentile). The highest-risk hazard is wildfire at the 81th 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 Boundary County risk compare to the Idaho average?
Boundary County's composite risk percentile is 26th, compared to the Idaho state average of 39th percentile. The state's overall risk rating is Very Low. This means Boundary County faces lower natural disaster risk than the typical county in Idaho.
Is Boundary County at risk for wildfire?
Yes, Boundary County's wildfire risk is at the 81th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Boundary County is at the 46th 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 Boundary County a safe place to live?
Boundary County's composite risk score of 26th 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 81th 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.