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

McHenry County Disaster Risk

McHenry County, North Dakota

FEMA Risk Rating

Very Low

National Percentile

12th

of 3,144 counties

State Rank

#29

of 53 (1 = highest risk)

Flood Risk

8th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 8% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 87% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 28% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 11% of US counties

Risk Overview

About Natural Disaster Risk in McHenry County, North Dakota

McHenry ranks well below national risk

With a composite risk score of 11.74, McHenry County sits in the Very Low category—significantly safer than the typical U.S. county. The county's overall risk profile is well below the national average, making it one of North Dakota's most resilient communities when it comes to natural disaster exposure.

McHenry is among ND's safest counties

McHenry's score of 11.74 places it well below North Dakota's state average of 22.19, ranking it among the lowest-risk counties in the state. This strong position reflects relatively modest hazard exposure across most disaster types.

Safer than neighboring counties

McHenry's risk score of 11.74 beats nearby Mountrail County (21.37) and McKenzie County (25.03), making it one of the safest areas in northwestern North Dakota. Only Nelson County (7.92) edges out McHenry in overall resilience across the region.

Wildfire poses the greatest threat

Wildfire risk reaches 87.44 in McHenry County—the county's dominant hazard concern by far. Tornado risk is much lower at 27.61, and flood and earthquake risks remain minimal, making preparedness focused on wildland fire most important.

Prioritize wildfire coverage and prep

Given McHenry's elevated wildfire exposure, ensure your homeowners policy covers wildfire damage and consider defensible space around your property. Review your coverage annually and maintain emergency supplies in case of rapid evacuation.

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

Preparedness Guide

What to Prepare for in McHenry County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    87th percentile
  2. #2
    TornadoPrepare
    28th percentile
  3. #3
    EarthquakePrepare
    11th percentile

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

Risk Advisory: McHenry County

Risk Verdict

Compared to the nation's 3,144 counties, McHenry County ranks at the 12th percentile for natural disaster risk — toward the safer end of the spectrum. At the 12th percentile nationally, McHenry 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 McHenry County's dominant natural hazard, ranked at the 87th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 28th percentile nationally. Additional tracked hazards include earthquake (11th percentile), flood (8th percentile).

Preparedness Context

McHenry County sits at the 87th percentile for wildfire exposure. Signing up for McHenry 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. Alongside wildfire, tornado at the 28th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. In McHenry 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 10.5 points below the North Dakota state average, McHenry County is among the lower-risk counties in the state for natural disaster exposure.

Is your household prepared for McHenry 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 McHenry County, ND?
McHenry County has a FEMA National Risk Index rating of Very Low, placing it in the 12th 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 McHenry County?
McHenry County is evaluated for five major natural hazard types: wildfire (87th percentile), tornado (28th percentile), earthquake (11th percentile), flooding (8th percentile). The highest-risk hazard is wildfire at the 87th 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 McHenry County risk compare to the North Dakota average?
McHenry County's composite risk percentile is 12th, compared to the North Dakota state average of 22th percentile. The state's overall risk rating is Very Low. This means McHenry County faces lower natural disaster risk than the typical county in North Dakota.
Is McHenry County at risk for wildfire?
Yes, McHenry County's wildfire risk is at the 87th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, McHenry County is at the 8th 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 McHenry County a safe place to live?
McHenry County's composite risk score of 12th percentile is below the North Dakota state average of 22th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 87th 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.