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

Johnson County Disaster Risk

Johnson County, Nebraska

FEMA Risk Rating

Very Low

National Percentile

5th

of 3,144 counties

State Rank

#72

of 93 (1 = highest risk)

Flood Risk

9th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 9% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 78% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 29% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 4% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Johnson County, Nebraska

Johnson County's disaster risk

Johnson County scores 4.58 on the national composite risk scale, earning a Very Low rating—well below the national average. This places the county among the safest in the nation for natural disaster exposure.

Safest county in Nebraska

Johnson County's composite risk of 4.58 is dramatically lower than Nebraska's state average of 25.80, making it one of the least vulnerable counties in the state. This favorable position reflects relatively low exposure across most hazard types.

Compared to nearby counties

Johnson County's risk profile stands out favorably against neighbors like Knox County (29.71) and Lincoln County (48.57), which face considerably higher composite risk. The county's insulation from major hazards gives it a clear advantage in the region.

Your top natural hazards

Wildfire risk is Johnson County's most significant concern at 77.54, though it remains manageable compared to state averages. Tornado risk (28.63) ranks second, but both hazards are relatively contained in this low-risk county.

Insurance for peace of mind

While Johnson County's overall risk is very low, wildfire and tornado coverage remains prudent for property owners. Standard homeowners insurance often excludes wildfire damage, so review your policy to ensure adequate protection.

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

Preparedness Guide

What to Prepare for in Johnson County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    78th percentile
  2. #2
    TornadoPrepare
    29th percentile
  3. #3
    FloodPrepare
    9th percentile

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

Risk Advisory: Johnson County

Risk Verdict

Johnson County's overall natural disaster score at the 5th percentile puts it well below the national median for hazard exposure. At the 5th percentile, Johnson County's risk profile is among the more manageable in the country — the hazard-specific breakdown above shows where any remaining preparedness focus is best directed.

Hazard Breakdown

Wildfire risk is Johnson County's dominant natural hazard, ranked at the 78th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 29th percentile nationally. Additional tracked hazards include flood (9th percentile), earthquake (4th percentile), hurricane (0th percentile).

Preparedness Context

With wildfire ranked at the 78th percentile nationally, Johnson County is in a zone where air quality can deteriorate rapidly before structures are threatened. An N95 respirator and a HEPA air purifier are practical items for Johnson County households to have on hand before fire season. A secondary tornado exposure at the 29th percentile nationally means Johnson County residents face hazards from two distinct natural peril categories during different seasons. Defensible space, insurance review, and an evacuation plan are the three preparedness pillars for Johnson County households — and the insurance review is the one most often deferred by Johnson County residents and most costly to skip when a fire event actually occurs.

Regional Context

Johnson County's composite risk score sits 21.2 points below the Nebraska county average, reflecting a more favorable hazard environment than the state typical.

Is your household prepared for Johnson 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 Johnson County, NE?
Johnson County has a FEMA National Risk Index rating of Very Low, placing it in the 5th 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 Johnson County?
Johnson County is evaluated for five major natural hazard types: wildfire (78th percentile), tornado (29th percentile), flooding (9th percentile), earthquake (4th percentile), hurricane (0th percentile). The highest-risk hazard is wildfire at the 78th 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 Johnson County risk compare to the Nebraska average?
Johnson County's composite risk percentile is 5th, compared to the Nebraska state average of 26th percentile. The state's overall risk rating is Very Low. This means Johnson County faces lower natural disaster risk than the typical county in Nebraska.
Is Johnson County at risk for wildfire?
Yes, Johnson County's wildfire risk is at the 78th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Johnson County is at the 9th 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 Johnson County a safe place to live?
Johnson County's composite risk score of 5th percentile is below the Nebraska state average of 26th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 78th 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.