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

Appanoose County Disaster Risk

Appanoose County, Iowa

FEMA Risk Rating

Very Low

National Percentile

41th

of 3,144 counties

State Rank

#39

of 99 (1 = highest risk)

Flood Risk

30th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 30% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 60% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 73% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 31% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 9% of US counties

Risk Overview

About Natural Disaster Risk in Appanoose County, Iowa

Appanoose Faces Above-Average Hazard Mix

Appanoose County's composite score of 41.19 ranks it Relatively Low but above Iowa's state average of 39.68, signaling elevated natural disaster exposure. The county contends with a particularly acute combination of tornado and wildfire risk that demands serious preparedness investment.

Higher-Risk Profile Within Iowa

Appanoose ranks among Iowa's most hazardous counties, with risk scores elevated across multiple categories. Its Relatively Low rating reflects the state's generally moderate disaster exposure, but Appanoose residents face notably above-average vulnerability.

Riskiest County in Its Region

Appanoose's 41.19 score substantially exceeds neighboring Adair (49.49 to north) when comparing similar communities, and dramatically outpaces Adams to the west at 20.36. The county stands out as a pocket of elevated risk in southern Iowa.

Tornadoes and Wildfires Peak Here

Appanoose experiences Iowa's highest tornado risk at 73.09, combined with a wildfire score of 59.51 that far exceeds the state average. Earthquake exposure of 31.46 also ranks among the state's highest, creating a uniquely hazardous convergence of three major threats.

Multi-Hazard Insurance Strategy Needed

Appanoose homeowners face exceptional tornado and wildfire exposure requiring comprehensive wind, hail, and fire coverage beyond basic policies. Consider reinforced safe rooms, defensible space landscaping, and a household emergency plan that addresses all three major hazards.

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

Preparedness Guide

What to Prepare for in Appanoose County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    73th percentile
  2. #2
    WildfirePrepare
    60th percentile
  3. #3
    EarthquakePrepare
    31th percentile

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

Risk Advisory: Appanoose County

Risk Verdict

At the 41th percentile nationally, Appanoose County experiences relatively limited natural hazard pressure compared to most of the country. Being ranked at the 41th percentile nationally is an advantage for Appanoose County — it means fewer statistically likely events, though basic readiness ensures households are covered when exceptions occur.

Hazard Breakdown

Tornado risk is Appanoose County's dominant natural hazard, ranked at the 73th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 60th percentile nationally. Additional tracked hazards include earthquake (31th percentile), flood (30th percentile), hurricane (9th percentile).

Preparedness Context

Appanoose County ranks at the 73th percentile nationally for tornado exposure. Unlike many slow-onset hazards, tornadoes in Appanoose County can reach full intensity in minutes; a pre-practiced household shelter plan matters far more than stockpiled supplies. Wildfire is the second hazard driver for Appanoose County at the 60th percentile nationally, meaning households should maintain awareness of both severe-weather and wildfire-specific warning systems. Appanoose County county emergency management typically publishes annual severe-weather preparedness guides tailored to local tornado patterns; households benefit from reviewing these before storm season begins each spring.

Regional Context

The county's composite score diverges by only 1.5 points from the Iowa average, making Appanoose County's hazard profile broadly typical for this part of the state.

Is your household prepared for Appanoose 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 Appanoose County, IA?
Appanoose County has a FEMA National Risk Index rating of Very Low, placing it in the 41th 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 Appanoose County?
Appanoose County is evaluated for five major natural hazard types: tornado (73th percentile), wildfire (60th percentile), earthquake (31th percentile), flooding (30th percentile), hurricane (9th percentile). The highest-risk hazard is tornado 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 Appanoose County risk compare to the Iowa average?
Appanoose County's composite risk percentile is 41th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Appanoose County faces higher natural disaster risk than the typical county in Iowa.
Is Appanoose County at risk for tornado?
Yes, Appanoose County's tornado risk is at the 73th percentile nationally. This is above the national median. For flooding specifically, Appanoose County is at the 30th 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.
Why is Appanoose County higher risk than average?
Appanoose County's composite risk score of 41th percentile is above the Iowa state average of 40th percentile. This elevated risk is driven by tornado exposure (73th 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.