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

Hillsdale County Disaster Risk

Hillsdale County, Michigan

FEMA Risk Rating

Relatively Low

National Percentile

50th

of 3,144 counties

State Rank

#43

of 83 (1 = highest risk)

Flood Risk

56th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 56% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 18% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 79% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 51% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 33% of US counties

Risk Overview

About Natural Disaster Risk in Hillsdale County, Michigan

Hillsdale's risk sits right at national baseline

Hillsdale County's composite risk score of 49.97 places it in the "Relatively Low" category, nearly identical to Michigan's state average of 49.56. The county's risk profile reflects balanced exposure across tornado, flood, and moderate earthquake hazards. This baseline positioning suggests Hillsdale residents face typical Midwest natural disaster risks.

Average risk for Michigan

Hillsdale ranks at the exact center of Michigan's risk distribution, with a 49.97 score matching the state average almost precisely. This mid-tier position places Hillsdale among the state's most typical counties for disaster exposure. Significantly riskier counties like Genesee contrast sharply with safer upper-peninsula locations.

Comparable risk to adjacent southern Michigan

Hillsdale's 49.97 score exceeds Gladwin County (40.27) but falls below Gratiot County (54.13) and Huron County (59.03). Within its immediate region in southern Michigan, Hillsdale represents moderate risk—neither particularly safe nor notably exposed. The variation reflects Hillsdale's position in a transition zone between lower-risk agricultural regions and higher-risk coastal areas.

Tornadoes and earthquakes are primary threats

Tornado risk of 78.53 is Hillsdale's most significant hazard, reflecting the county's location in Michigan's tornado-prone south-central region. Earthquake risk of 50.51 is unusually high for Michigan and likely reflects proximity to seismic activity zones along the eastern Great Lakes region. Flood risk of 56.46 is moderate and should not be overlooked.

Prepare for tornadoes and ground shaking

Hillsdale residents should prioritize tornado preparedness, including a designated safe room or basement shelter and knowledge of local warning systems. Earthquake insurance should be considered given the surprisingly high 50.51 seismic risk score; standard homeowners policies exclude earthquake damage. Flood insurance is advisable, particularly for properties in lower-lying areas or near streams.

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

Preparedness Guide

What to Prepare for in Hillsdale County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    79th percentile
  2. #2
    FloodPrepare
    56th percentile
  3. #3
    EarthquakePrepare
    51th percentile

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

Risk Advisory: Hillsdale County

Risk Verdict

At the 50th percentile nationally, Hillsdale County experiences a manageable level of natural hazard risk that falls below the U.S. median. Hillsdale County's 50th percentile ranking is favorable, though every county carries at least one natural hazard worth knowing — reviewing the specific risks listed above helps households focus their preparedness where it matters most.

Hazard Breakdown

Tornado risk is Hillsdale County's dominant natural hazard, ranked at the 79th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 56th percentile nationally. Additional tracked hazards include earthquake (51th percentile), hurricane (33th percentile), wildfire (18th percentile).

Preparedness Context

Hillsdale County's primary hazard, tornado, ranks at the 79th percentile nationally. In Hillsdale County, mobile homes and manufactured housing face significantly higher tornado risk than site-built structures; residents in these homes should identify the nearest permanent community shelter in advance. Alongside tornado exposure, flood at the 56th percentile nationally means Hillsdale County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. The highest-risk window for tornado fatalities is overnight, when Hillsdale County residents may be asleep. A NOAA weather radio with overnight alert capability is the single most impactful low-cost preparedness step available to Hillsdale County households.

Regional Context

At 0.4 points from the Michigan county mean, Hillsdale County's overall disaster risk profile is close to typical for this state, with no dramatic deviation in either direction.

Is your household prepared for Hillsdale 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 Hillsdale County, MI?
Hillsdale County has a FEMA National Risk Index rating of Relatively Low, placing it in the 50th 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 Hillsdale County?
Hillsdale County is evaluated for five major natural hazard types: tornado (79th percentile), flooding (56th percentile), earthquake (51th percentile), hurricane (33th percentile), wildfire (18th percentile). The highest-risk hazard is tornado at the 79th 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 Hillsdale County risk compare to the Michigan average?
Hillsdale County's composite risk percentile is 50th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Hillsdale County faces higher natural disaster risk than the typical county in Michigan.
Is Hillsdale County at risk for tornado?
Yes, Hillsdale County's tornado risk is at the 79th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Hillsdale County is at the 56th 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 Hillsdale County higher risk than average?
Hillsdale County's composite risk score of 50th percentile is above the Michigan state average of 50th percentile. This elevated risk is driven by tornado exposure (79th percentile), along with flooding and earthquake 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.