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

Miami County Disaster Risk

Miami County, Kansas

FEMA Risk Rating

Relatively Low

National Percentile

43th

of 3,144 counties

State Rank

#25

of 105 (1 = highest risk)

Flood Risk

47th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 47% 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

Relatively Low

Higher than 67% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 32% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Miami County, Kansas

Miami County's elevated risk profile

Miami County scores 43.07 on the composite risk scale, earning a Relatively Low rating and exceeding Kansas's state average of 29.89 by 44%. This places the county in a higher-risk tier compared to most Kansas communities.

Higher-risk among Kansas counties

Miami County ranks above the state median among Kansas's 105 counties, driven primarily by elevated flood and tornado risk. Its Relatively Low rating indicates meaningful exposure to multiple hazard types statewide.

Riskiest county in cluster

Miami County's 43.07 score significantly exceeds neighboring Marshall (21.41) and Marion (37.98) counties. Its elevated flood risk (46.85) stands out as uniquely high compared to surrounding communities.

Flood and tornado dominance

Flooding emerges as the leading risk with a score of 46.85, considerably higher than most neighboring counties and reflecting local drainage challenges. Tornado exposure ranks second at 67.11, representing a secondary but substantial threat.

Flood insurance is critical

Miami County residents in flood-prone areas must purchase separate flood insurance, as standard homeowners policies exclude flood damage. Comprehensive coverage addressing both flood and tornado risk provides essential protection for this county.

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

Preparedness Guide

What to Prepare for in Miami County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    67th percentile
  2. #2
    FloodPrepare
    47th percentile
  3. #3
    WildfirePrepare
    35th percentile

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

Risk Advisory: Miami County

Risk Verdict

Natural hazard pressure in Miami County is below the national midpoint, with a composite score at the 43th percentile. Miami County residents can take confidence from a 43th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Tornado risk is Miami County's dominant natural hazard, ranked at the 67th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 47th percentile nationally. Additional tracked hazards include wildfire (35th percentile), earthquake (32th percentile), hurricane (0th percentile).

Preparedness Context

With tornado ranked at the 67th percentile nationally, Miami County sits in a high-exposure zone where the difference between outcomes often comes down to proximity to a reinforced interior shelter and seconds of warning time. The secondary flood hazard at the 47th percentile nationally adds seasonal complexity to Miami County's preparedness calendar, since flood and tornado risk often peak at different points in the year. For Miami County households, safe rooms certified to FEMA 320/361 standards offer the highest protection during a direct tornado hit; households without a safe room should locate the innermost lowest-floor room in their building and practice the route to it before storm season.

Regional Context

Miami County is 13.2 composite risk points above the Kansas average, indicating that residents face greater natural hazard exposure than most of their in-state neighbors.

Is your household prepared for Miami 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 Miami County, KS?
Miami County has a FEMA National Risk Index rating of Relatively Low, placing it in the 43th 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 Miami County?
Miami County is evaluated for five major natural hazard types: tornado (67th percentile), flooding (47th percentile), wildfire (35th percentile), earthquake (32th percentile), hurricane (0th percentile). The highest-risk hazard is tornado at the 67th 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 Miami County risk compare to the Kansas average?
Miami County's composite risk percentile is 43th, compared to the Kansas state average of 30th percentile. The state's overall risk rating is Very Low. This means Miami County faces higher natural disaster risk than the typical county in Kansas.
Is Miami County at risk for tornado?
Yes, Miami County's tornado risk is at the 67th percentile nationally. This is above the national median. For flooding specifically, Miami County is at the 47th 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 Miami County higher risk than average?
Miami County's composite risk score of 43th percentile is above the Kansas state average of 30th percentile. This elevated risk is driven by tornado exposure (67th percentile). 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.