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

Ionia County Disaster Risk

Ionia County, Michigan

FEMA Risk Rating

Relatively Low

National Percentile

56th

of 3,144 counties

State Rank

#38

of 83 (1 = highest risk)

Flood Risk

64th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 64% 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

Relatively Low

Higher than 78% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 34% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 34% of US counties

Risk Overview

About Natural Disaster Risk in Ionia County, Michigan

Ionia's risk mirrors state average

Ionia County's composite risk score of 55.85 sits slightly above Michigan's state average of 49.56, placing it in the relatively low risk category. This profile suggests that while hazards exist, they're more manageable than in many other U.S. counties.

Below-average risk for Michigan

Ionia ranks in the safer half of Michigan counties for natural disaster exposure, with moderate vulnerabilities spread across several hazard types rather than concentrated in one area. This balanced risk profile offers residents somewhat better odds than higher-risk neighboring communities.

Safer than Ingham, comparable to Jackson

Ionia's 55.85 score makes it noticeably safer than neighboring Ingham County (87.25) but similar to Jackson County (76.46) when adjusted for differences. The variation underscores how rapidly disaster risk can shift across the region.

Tornado and flood are top concerns

Ionia faces a tornado risk of 77.54 and flood risk of 63.84, making these two hazards the primary threats to residents and property. Earthquake risk (34.32) presents a secondary but measurable concern for the county.

Get flood insurance and storm plan

Ionia residents should obtain flood insurance as a separate policy since standard homeowners coverage excludes it, given the county's 63.84 flood risk score. Develop and practice a tornado evacuation plan, especially during spring and early summer storm seasons.

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

Preparedness Guide

What to Prepare for in Ionia County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    78th percentile
  2. #2
    FloodPrepare
    64th percentile
  3. #3
    EarthquakePrepare
    34th percentile

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

Risk Advisory: Ionia County

Risk Verdict

Ionia County sits below the national average for natural disaster exposure, ranking at the 56th percentile across all U.S. counties. Understanding the specific hazards behind Ionia County's ranking helps residents prioritize where to direct emergency planning efforts.

Hazard Breakdown

Tornado risk is Ionia County's dominant natural hazard, ranked at the 78th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 64th percentile nationally. Additional tracked hazards include earthquake (34th percentile), hurricane (34th percentile), wildfire (22th percentile).

Preparedness Context

Ranked at the 78th percentile nationally for tornado risk, Ionia County is in a zone where storm shelters have the highest per-dollar protective value of any mitigation investment. Ionia County's county shelter map is typically available through the local emergency management office. The secondary flood hazard at the 64th percentile nationally adds seasonal complexity to Ionia County's preparedness calendar, since flood and tornado risk often peak at different points in the year. Ionia County residents can check the county's emergency management website for community shelter locations nearest their address — a step worth completing now, not during a warning.

Regional Context

A composite score 6.3 points above the Michigan state average puts Ionia County in a higher-risk category than most counties in the state.

Is your household prepared for Ionia 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 Ionia County, MI?
Ionia County has a FEMA National Risk Index rating of Relatively Low, placing it in the 56th 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 Ionia County?
Ionia County is evaluated for five major natural hazard types: tornado (78th percentile), flooding (64th percentile), earthquake (34th percentile), hurricane (34th percentile), wildfire (22th percentile). The highest-risk hazard is tornado 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 Ionia County risk compare to the Michigan average?
Ionia County's composite risk percentile is 56th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Ionia County faces higher natural disaster risk than the typical county in Michigan.
Is Ionia County at risk for tornado?
Yes, Ionia County's tornado risk is at the 78th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Ionia County is at the 64th 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 Ionia County higher risk than average?
Ionia County's composite risk score of 56th percentile is above the Michigan state average of 50th percentile. This elevated risk is driven by tornado exposure (78th percentile), along with flooding 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.