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

Johnson County Disaster Risk

Johnson County, Kentucky

FEMA Risk Rating

Relatively Low

National Percentile

71th

of 3,144 counties

State Rank

#23

of 120 (1 = highest risk)

Flood Risk

85th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 85% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 76% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 31% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 43% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 46% of US counties

Risk Overview

About Natural Disaster Risk in Johnson County, Kentucky

Johnson faces moderate national risk

Johnson County's composite risk score of 71.06 places it above the national average, with a "Relatively Low" rating. This indicates moderate exposure to natural hazards compared to most U.S. counties.

High-risk county for Kentucky

Johnson County's score of 71.06 exceeds Kentucky's state average of 44.21, ranking it among the higher-risk counties statewide. This elevation in the Appalachian region contributes to increased hazard exposure.

Highest flood risk in eastern cluster

Johnson County's flood risk of 85.21 is substantially higher than neighboring Pike County and Lawrence County. Its wildfire risk of 76.30 also exceeds most peer counties in the region.

Floods and wildfires dominate hazard mix

Flood risk at 85.21 and wildfire risk at 76.30 are Johnson County's critical threats, both driven by terrain and forest coverage. Tornado risk remains low at 30.50, offering relative safety in that hazard category.

Flood insurance is non-negotiable here

Johnson County's elevated flood risk means federal flood insurance or a private flood policy is essential for homes in at-risk zones. Also maintain comprehensive coverage for potential wildfire smoke and ember damage.

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
    FloodPrepare
    85th percentile
  2. #2
    WildfirePrepare
    76th percentile
  3. #3
    HurricanePrepare
    46th percentile

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

Risk Advisory: Johnson County

Risk Verdict

Natural hazard pressure in Johnson County is below the national midpoint, with a composite score at the 71th percentile. Proactive emergency planning and awareness of the specific hazards driving Johnson County's score can meaningfully reduce household risk.

Hazard Breakdown

Flood risk is Johnson County's dominant natural hazard, ranked at the 85th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 76th percentile nationally. Additional tracked hazards include hurricane (46th percentile), earthquake (43th percentile), tornado (31th percentile).

Preparedness Context

Flood risk is Johnson County's top hazard at the 85th percentile nationally. Households in or near designated flood zones face elevated financial exposure; flood insurance typically requires a 30-day waiting period before it takes effect, so applying before the season is advisable. The county's second-ranked hazard, wildfire at the 76th percentile nationally, means Johnson County residents face compounding risks from multiple natural hazard types during peak seasons. Households across Johnson County should identify the nearest community shelter and keep a basic emergency kit — water, non-perishable food, medications, flashlight, and battery radio — in a location easy to grab quickly.

Regional Context

Johnson County is 26.8 composite risk points above the Kentucky average, indicating that residents face greater natural hazard exposure than most of their in-state neighbors.

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, KY?
Johnson County has a FEMA National Risk Index rating of Relatively Low, placing it in the 71th 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: flooding (85th percentile), wildfire (76th percentile), hurricane (46th percentile), earthquake (43th percentile), tornado (31th percentile). The highest-risk hazard is flooding at the 85th 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 Kentucky average?
Johnson County's composite risk percentile is 71th, compared to the Kentucky state average of 44th percentile. The state's overall risk rating is Relatively Low. This means Johnson County faces higher natural disaster risk than the typical county in Kentucky.
Is Johnson County at risk for flooding?
Yes, Johnson County's flooding risk is at the 85th percentile nationally. This places it in the top quartile for this hazard type.
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.
Why is Johnson County higher risk than average?
Johnson County's composite risk score of 71th percentile is above the Kentucky state average of 44th percentile. This elevated risk is driven by flooding exposure (85th percentile), along with wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
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.