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

Edmunds County Disaster Risk

Edmunds County, South Dakota

FEMA Risk Rating

Very Low

National Percentile

7th

of 3,144 counties

State Rank

#52

of 66 (1 = highest risk)

Flood Risk

8th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 8% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 69% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 23% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 12% of US counties

Risk Overview

About Natural Disaster Risk in Edmunds County, South Dakota

Edmunds County among nation's safest

Edmunds County's composite risk score of 6.97 falls far below South Dakota's 26.84 state average, ranking it among America's lowest-risk counties. This "Very Low" rating reflects exceptional protection from major natural hazards.

Second-safest county in South Dakota

Edmunds County ranks second-lowest among South Dakota's 66 counties for natural disaster risk, with its 6.97 composite score surpassed only by Deuel County (6.87). Few South Dakota residents live in counties with comparable hazard protection.

Exceptionally safe in north-central region

Edmunds County's 6.97 risk score makes it one of the safest counties in north-central South Dakota, significantly outperforming Faulk County (7.95) to the south and Day County (27.64) to the east. Only Deuel County matches its low-risk profile.

Wildfire only notable exposure

Wildfire risk at 69.18 is Edmunds County's sole hazard of concern, though still moderate compared to western counties. All other risks—tornado (23.12), flood (8.02), and earthquake (11.61)—fall substantially below state and national averages.

Minimal insurance beyond basics needed

Edmunds County's exceptional safety profile means standard homeowners insurance provides robust protection without specialized additions. Maintain basic property maintenance and wildfire-resistant landscaping rather than pursuing premium disaster coverage.

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

Preparedness Guide

What to Prepare for in Edmunds County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    69th percentile
  2. #2
    TornadoPrepare
    23th percentile
  3. #3
    EarthquakePrepare
    12th percentile

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

Risk Advisory: Edmunds County

Risk Verdict

Natural disaster exposure in Edmunds County is lower than roughly three-quarters of U.S. counties, with a composite score at the 7th percentile. A 7th percentile score positions Edmunds County among the nation's lower-risk counties, a genuinely favorable outcome — one that simple, low-cost preparedness habits can reinforce further.

Hazard Breakdown

Wildfire risk is Edmunds County's dominant natural hazard, ranked at the 69th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 23th percentile nationally. Additional tracked hazards include earthquake (12th percentile), flood (8th percentile).

Preparedness Context

At the 69th percentile nationally for wildfire, Edmunds County residents should verify whether their insurance policy includes replacement cost coverage for structures and whether the insurer still writes new policies in this fire-risk zone. The county's tornado exposure at the 23th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. Local USFS or Cal Fire (where applicable) fire risk maps and seasonal Red Flag Warning alerts from the National Weather Service are two free resources Edmunds County residents can use to stay ahead of rapidly changing wildfire conditions.

Regional Context

Edmunds County is 19.9 composite risk points below the South Dakota state mean, meaning most other South Dakota counties face higher natural hazard exposure.

Is your household prepared for Edmunds 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 Edmunds County, SD?
Edmunds County has a FEMA National Risk Index rating of Very Low, placing it in the 7th 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 Edmunds County?
Edmunds County is evaluated for five major natural hazard types: wildfire (69th percentile), tornado (23th percentile), earthquake (12th percentile), flooding (8th percentile). The highest-risk hazard is wildfire at the 69th 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 Edmunds County risk compare to the South Dakota average?
Edmunds County's composite risk percentile is 7th, compared to the South Dakota state average of 27th percentile. The state's overall risk rating is Very Low. This means Edmunds County faces lower natural disaster risk than the typical county in South Dakota.
Is Edmunds County at risk for wildfire?
Yes, Edmunds County's wildfire risk is at the 69th percentile nationally. This is above the national median. For flooding specifically, Edmunds County is at the 8th 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.
Is Edmunds County a safe place to live?
Edmunds County's composite risk score of 7th percentile is below the South Dakota state average of 27th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 69th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
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.