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

Campbell County Disaster Risk

Campbell County, South Dakota

FEMA Risk Rating

Very Low

National Percentile

4th

of 3,144 counties

State Rank

#61

of 66 (1 = highest risk)

Flood Risk

9th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 9% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 78% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 14% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 4% of US counties

Risk Overview

About Natural Disaster Risk in Campbell County, South Dakota

Campbell County: South Dakota's safest county

With a composite risk score of just 4.39, Campbell County ranks in the Very Low category and well below the national average. This makes it one of the lowest-risk counties for natural disasters in the entire region.

Lowest risk ranking in South Dakota

Campbell County's 4.39 score is dramatically lower than South Dakota's 26.84 state average, making it the safest county in the state by composite risk. No other county in South Dakota comes close to Campbell's low exposure profile.

Significantly safer than regional peers

Campbell County's 4.39 risk score is far below neighboring Butte (23.25) and Corson (38.10) counties. Its minimal flood (8.65), tornado (14.34), and earthquake (4.23) risks create a notably protective geographic position.

Wildfire only elevated concern in Campbell

Wildfire risk at 77.51 is Campbell County's sole hazard of concern, standing in sharp contrast to the county's minimal flood, tornado, and earthquake threats. Even this wildfire score remains manageable compared to neighboring counties.

Wildfire insurance essential despite low overall risk

Campbell County residents should prioritize wildfire coverage on homeowners policies, as standard policies often exclude this hazard despite the 77.51 risk score. For most other natural disaster risks, basic coverage through standard homeowners policies provides adequate protection.

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

Preparedness Guide

What to Prepare for in Campbell County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    78th percentile
  2. #2
    TornadoPrepare
    14th percentile
  3. #3
    FloodPrepare
    9th percentile

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

Risk Advisory: Campbell County

Risk Verdict

Campbell County's overall natural disaster score at the 4th percentile puts it well below the national median for hazard exposure. Campbell County residents can take confidence from a 4th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Wildfire risk is Campbell County's dominant natural hazard, ranked at the 78th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 14th percentile nationally. Additional tracked hazards include flood (9th percentile), earthquake (4th percentile).

Preparedness Context

With wildfire ranked at the 78th percentile nationally, Campbell County is in a zone where air quality can deteriorate rapidly before structures are threatened. An N95 respirator and a HEPA air purifier are practical items for Campbell County households to have on hand before fire season. The county's tornado exposure at the 14th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. Defensible space, insurance review, and an evacuation plan are the three preparedness pillars for Campbell County households — and the insurance review is the one most often deferred by Campbell County residents and most costly to skip when a fire event actually occurs.

Regional Context

Campbell County's composite risk score sits 22.5 points below the South Dakota county average, reflecting a more favorable hazard environment than the state typical.

Is your household prepared for Campbell 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 Campbell County, SD?
Campbell County has a FEMA National Risk Index rating of Very Low, placing it in the 4th 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 Campbell County?
Campbell County is evaluated for five major natural hazard types: wildfire (78th percentile), tornado (14th percentile), flooding (9th percentile), earthquake (4th percentile). The highest-risk hazard is wildfire at the 78th 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 Campbell County risk compare to the South Dakota average?
Campbell County's composite risk percentile is 4th, compared to the South Dakota state average of 27th percentile. The state's overall risk rating is Very Low. This means Campbell County faces lower natural disaster risk than the typical county in South Dakota.
Is Campbell County at risk for wildfire?
Yes, Campbell County's wildfire risk is at the 78th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Campbell County is at the 9th 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 Campbell County a safe place to live?
Campbell County's composite risk score of 4th 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 78th 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.