Louisa County Disaster Risk
Louisa County, Iowa
FEMA Risk Rating
Very Low
National Percentile
17th
of 3,144 counties
State Rank
#90
of 99 (1 = highest risk)
Flood Risk
21th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Very Low
Higher than 21% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 35% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 34% of US counties
Earthquake
Seismic activity and ground shaking risk
Very Low
Higher than 30% of US counties
Hurricane
Tropical cyclone and hurricane risk
Very Low
Higher than 12% of US counties
Risk Overview
About Natural Disaster Risk in Louisa County, Iowa
Louisa County faces very low risk overall
With a composite risk score of 17.46, Louisa County sits well below Iowa's state average of 39.68, placing it among the safest counties in the state. This very low risk rating reflects relatively minimal exposure to most major natural hazards.
Second-safest county in Iowa
Louisa ranks near the bottom of Iowa's disaster risk hierarchy, with Lyon County as the only county posting a lower composite score. This favorable position means residents face substantially lower natural disaster insurance costs and fewer weather-related disruptions than most Iowans.
Safest in your part of southeast Iowa
Louisa's score of 17.46 beats nearby Lucas County (29.68) and rivals Lyon County (19.18) as the region's lowest-risk counties. This cluster of relatively safe counties in southeast Iowa contrasts sharply with the higher-risk areas in central and northern parts of the state.
Flooding poses modest but measurable risk
Flood risk at 20.90 is your highest hazard exposure, though still well below national and state averages. Tornado risk of 34.19 remains secondary but warrants standard severe weather preparedness, particularly during spring storm season.
Basic coverage typically sufficient here
Your low-risk profile means standard homeowners insurance provides solid protection for most residents, though flood insurance remains prudent in properties near the Iowa River or local creek systems. Review your policy annually to ensure replacement cost coverage keeps pace with inflation.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Louisa County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Louisa County
Risk Verdict
Louisa County carries a low natural disaster risk burden, scoring at the 17th percentile under the FEMA National Risk Index. A preparedness foundation — alert registration, household communication plan, and a basic supply review — costs little and remains valuable even at Louisa County's favorable 17th percentile ranking.
Hazard Breakdown
Wildfire risk is Louisa County's dominant natural hazard, ranked at the 35th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 34th percentile nationally. Additional tracked hazards include earthquake (30th percentile), flood (21th percentile), hurricane (12th percentile).
Preparedness Context
Wildfire ranks as Louisa County's primary hazard at the 35th percentile nationally. For Louisa County households in high-WUI areas, go-bag readiness — the ability to leave within 15 minutes — is more important than shelter-in-place planning for most residential properties. A secondary tornado exposure at the 34th percentile nationally means Louisa County residents face hazards from two distinct natural peril categories during different seasons. Louisa County county's local emergency management office publishes community-specific wildfire risk assessments and evacuation zone maps; households should review their zone assignment and sign up for zone-specific alerts.
Regional Context
Compared to the Iowa county average, Louisa County's composite score runs 22.2 points lower — a gap that reflects the county's relatively modest hazard profile within its state context.
Is your household prepared for Louisa County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Louisa County, IA?
What types of natural hazards affect Louisa County?
How does Louisa County risk compare to the Iowa average?
Is Louisa County at risk for wildfire?
How is natural disaster risk measured?
Is Louisa 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.