Johnston County Disaster Risk
Johnston County, Oklahoma
FEMA Risk Rating
Very Low
National Percentile
25th
of 3,144 counties
State Rank
#68
of 77 (1 = highest risk)
Flood Risk
19th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Very Low
Higher than 19% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Moderate
Higher than 82% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively Low
Higher than 59% of US counties
Earthquake
Seismic activity and ground shaking risk
Very Low
Higher than 35% of US counties
Hurricane
Tropical cyclone and hurricane risk
Very Low
Higher than 31% of US counties
Risk Overview
About Natural Disaster Risk in Johnston County, Oklahoma
Johnston County enjoys very low risk
Johnston County's composite risk score of 25.38 ranks as very low—significantly below the national average and well under Oklahoma's state average of 55.47. This low-risk profile reflects moderate exposure across multiple natural hazard categories.
Well below Oklahoma's average risk
At 25.38, Johnston County ranks among the safer counties statewide, with a score less than half the state average of 55.47. The county benefits from a relatively favorable natural disaster risk position within Oklahoma.
Similar risk to neighboring counties
Johnston County's score of 25.38 is comparable to nearby Jefferson County (20.90) and substantially lower than Jackson County (86.04) to the north. The county sits in one of Oklahoma's lower-risk zones regionally.
Wildfire and tornado concerns
Wildfire risk stands at 82.16—the county's highest exposure—while tornado risk (59.13) and flood risk (19.05) are moderate. Despite wildfire's elevated score, the county's overall composite risk remains low compared to statewide patterns.
Basic homeowners coverage recommended
Standard homeowners insurance covering wind damage provides adequate protection for most Johnston County properties. Residents in high-wildfire-risk areas should verify their policy includes wildfire coverage or explore supplemental options.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Johnston County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Johnston County
Risk Verdict
Johnston County sits in the lower tier of U.S. counties for natural disaster exposure, ranked at the 25th percentile nationally. At the 25th percentile nationally, Johnston 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 Johnston County's dominant natural hazard, ranked at the 82th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 59th percentile nationally. Additional tracked hazards include earthquake (35th percentile), hurricane (31th percentile), flood (19th percentile).
Preparedness Context
At the 82th percentile nationally for wildfire risk, Johnston 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. The county's tornado exposure at the 59th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. 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 Johnston County residents.
Regional Context
Johnston County falls 30.1 points below Oklahoma's typical county risk level, making it one of the safer natural-hazard environments in the state.
Is your household prepared for Johnston County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Johnston County, OK?
What types of natural hazards affect Johnston County?
How does Johnston County risk compare to the Oklahoma average?
Is Johnston County at risk for wildfire?
How is natural disaster risk measured?
Is Johnston County a safe place to live?
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.