St. Joseph County Disaster Risk
St. Joseph County, Indiana
FEMA Risk Rating
Relatively Moderate
National Percentile
86th
of 3,144 counties
State Rank
#6
of 92 (1 = highest risk)
Flood Risk
85th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Moderate
Higher than 85% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 22% of US counties
Tornado
Tornado and severe thunderstorm risk
Moderate
Higher than 91% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 78% of US counties
Hurricane
Tropical cyclone and hurricane risk
Relatively Low
Higher than 44% of US counties
Risk Overview
About Natural Disaster Risk in St. Joseph County, Indiana
St. Joseph faces elevated national risk
St. Joseph County's composite risk score of 85.81 earns a Relatively Moderate rating, nearly double Indiana's state average of 45.52 and well above typical U.S. counties. This county experiences substantially higher cumulative exposure to multiple natural hazards.
Among Indiana's riskiest counties
St. Joseph County ranks in the top tier of Indiana's 92 counties for natural disaster risk, with the second-highest composite score statewide. Only a handful of Indiana counties face comparable multi-hazard exposure.
Significantly riskier than surrounding areas
St. Joseph County's 85.81 score dramatically exceeds neighboring Starke County (24.94) and Steuben County (27.19), making it a clear outlier for disaster risk in the region. The county's northern location contributes to elevated flood and tornado vulnerabilities.
Tornadoes and floods dominate threats
Tornado risk reaches 90.52 in St. Joseph County—among the highest in Indiana—while flood risk scores 85.40, reflecting the county's water infrastructure and storm patterns. Earthquake risk at 78.31 and hurricane risk at 43.55 round out significant secondary concerns.
Invest in storm and flood protection
St. Joseph County residents should maintain robust homeowners and flood insurance, as both tornado (90.52) and flood (85.40) risks are critical. A designated safe room built to FEMA specifications offers vital protection during severe storms and high winds.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in St. Joseph County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: St. Joseph County
Risk Verdict
At the 86th percentile nationally, St. Joseph County sits in the upper half of U.S. counties for natural disaster exposure. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for St. Joseph County residents.
Hazard Breakdown
Tornado risk is St. Joseph County's dominant natural hazard, ranked at the 91th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 85th percentile nationally. Additional tracked hazards include earthquake (78th percentile), hurricane (44th percentile), wildfire (22th percentile).
Preparedness Context
Tornado exposure at the 91th percentile nationally makes St. Joseph County a county where a battery-powered weather radio — not just smartphone apps — is a worthwhile household investment, given that mobile networks often fail during severe storms. The secondary flood hazard at the 85th percentile nationally adds seasonal complexity to St. Joseph County's preparedness calendar, since flood and tornado risk often peak at different points in the year. In St. Joseph County, tornado watches indicate favorable atmospheric conditions while warnings mean rotation has been detected — households benefit from understanding this distinction so they shelter immediately on a warning, not after seeking visual confirmation.
Regional Context
The Indiana county average is 40.3 composite points below St. Joseph County's score, a gap that reflects the county's elevated position in the state's hazard distribution.
Is your household prepared for St. Joseph County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in St. Joseph County, IN?
What types of natural hazards affect St. Joseph County?
How does St. Joseph County risk compare to the Indiana average?
Is St. Joseph County at risk for tornado?
How is natural disaster risk measured?
Why is St. Joseph County higher risk than average?
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.