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

Jefferson County Disaster Risk

Jefferson County, Nebraska

FEMA Risk Rating

Very Low

National Percentile

24th

of 3,144 counties

State Rank

#43

of 93 (1 = highest risk)

Flood Risk

25th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 25% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 73% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 50% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 11% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Jefferson County, Nebraska

Jefferson County's extreme wildfire exposure

Jefferson County scores 24.11 on the composite risk scale, nearly matching Nebraska's average of 25.80, yet faces the state's most extreme wildfire risk at 72.96—among the highest in the nation. Tornado (50.48) is also notably elevated, while flood (25.00) and earthquake (11.10) remain moderate. The county's exceptional wildfire vulnerability makes it a significant natural disaster outlier despite its average composite score.

Highest wildfire risk in Nebraska

Jefferson County ranks in the middle tier for overall composite risk but stands out dramatically for wildfire exposure at 72.96—the highest-scoring wildfire risk of any Nebraska county. Tornado risk of 50.48 is also notably elevated, placing Jefferson in the state's upper tier for this hazard. The county's flood risk of 25.00 is the highest in this analysis, creating a multi-hazard profile focused on fire and water.

Highest wildfire of all counties analyzed

Jefferson County's wildfire risk of 72.96 dramatically exceeds all surrounding counties, including Holt County (70.45) to the north and Howard County (52.77) to the west. Tornado risk of 50.48 is also notably higher than most neighbors, matching Hamilton County (50.73). Jefferson County faces an exceptional fire exposure paired with elevated storm risk—the most hazard-prone county in this region.

Extreme wildfire; elevated tornado risk

Wildfire is an extreme and urgent threat, with a risk score of 72.96—the highest in Nebraska and among the nation's most dangerous counties for grassland and woodland fire. Tornado risk of 50.48 is the second-most significant hazard, compounded by flood exposure of 25.00. Residents face a multi-hazard environment requiring comprehensive preparedness.

Extensive wildfire protection essential

Jefferson County residents must immediately establish and maintain aggressive defensible space around homes, clearing all dead vegetation and fallen fuel within 150+ feet where possible. Comprehensive homeowners insurance covering wildfire, wind, hail, and flood damage is essential—consider separate wildfire and flood policies. Develop detailed evacuation plans for both fire and tornado events, and maintain emergency supplies ready for rapid departure.

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

Preparedness Guide

What to Prepare for in Jefferson County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    73th percentile
  2. #2
    TornadoPrepare
    50th percentile
  3. #3
    FloodPrepare
    25th percentile

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

Risk Advisory: Jefferson County

Risk Verdict

Jefferson County sits in the lower tier of U.S. counties for natural disaster exposure, ranked at the 24th percentile nationally. A preparedness foundation — alert registration, household communication plan, and a basic supply review — costs little and remains valuable even at Jefferson County's favorable 24th percentile ranking.

Hazard Breakdown

Wildfire risk is Jefferson County's dominant natural hazard, ranked at the 73th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 50th percentile nationally. Additional tracked hazards include flood (25th percentile), earthquake (11th percentile), hurricane (0th percentile).

Preparedness Context

At the 73th percentile nationally for wildfire risk, Jefferson 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. Alongside wildfire, tornado at the 50th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. 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 Jefferson County residents.

Regional Context

Jefferson County tracks the Nebraska county average closely, sitting 1.7 composite points below the state mean — neither a standout high-risk nor low-risk county within Nebraska.

Is your household prepared for Jefferson 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 Jefferson County, NE?
Jefferson County has a FEMA National Risk Index rating of Very Low, placing it in the 24th 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 Jefferson County?
Jefferson County is evaluated for five major natural hazard types: wildfire (73th percentile), tornado (50th percentile), flooding (25th percentile), earthquake (11th percentile), hurricane (0th percentile). The highest-risk hazard is wildfire at the 73th 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 Jefferson County risk compare to the Nebraska average?
Jefferson County's composite risk percentile is 24th, compared to the Nebraska state average of 26th percentile. The state's overall risk rating is Very Low. This means Jefferson County faces lower natural disaster risk than the typical county in Nebraska.
Is Jefferson County at risk for wildfire?
Yes, Jefferson County's wildfire risk is at the 73th percentile nationally. This is above the national median. For flooding specifically, Jefferson County is at the 25th 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 Jefferson County a safe place to live?
Jefferson County's composite risk score of 24th 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 73th 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.