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Isabella County, Michigan

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
28th of 83highest risk in Michigan
$22Mexpected losses a year
9federal declarations
1 in 200homes with flood insurance
Photo: U.S. Geological Survey, public domain

Isabella County, Michigan has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 66% of US counties. It ranks 28th of 83 counties in Michigan. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $22 million a year in expected losses, or roughly $348 per resident. Since 1975 it has been included in 9 federal disaster or emergency declarations for natural events (5 major disasters). The most recent was in August 2017 (severe storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (110 policies). Since 1978, federal flood insurance has paid about $543,000 on 37 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Isabella County

$12.3 million a yearExpected losses. Damaging events about once every 2 years.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Tornado

Moderate
$3.5 million a yearExpected losses. Damaging events about once every 5 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.

Cold wave

Moderate
$2.7 million a yearExpected losses. Damaging events about 2 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
HazardRatingScoreExpected loss a year
Inland floodingLow71.5
$12M
TornadoModerate80.2
$4M
Cold waveModerate77.5
$3M
Strong windHigh90.0
$2M
HailModerate79.6
$755K
Winter weatherHigh95.1
$599K
LightningLow54.9
$245K
Heat waveVery Low38.0
$183K
Ice stormModerate62.7
$132K
EarthquakeVery Low37.0
$110K
HurricaneVery Low33.0
$16K
WildfireVery Low18.4
$6K
LandslideVery Low44.1
$782

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively moderate and community resilience is relatively high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Isabella County. 2020s bar runs to November 2026.

By type

Flood3
Severe Storm2
Snowstorm2
Drought1
Hurricane1

Most recent

Aug 2, 2017Severe Storms and FloodingMajor disaster
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Jan 10, 2001SnowEmergency
Sep 18, 1986Severe Storms & FloodingMajor disaster
Sep 18, 1985Severe Storms and FloodingMajor disaster
Jan 27, 1978Blizzards & SnowstormsEmergency
Mar 2, 1977DroughtEmergency
Mar 19, 1976Severe Storms, Tornadoes, Icing & FloodingMajor disaster
Sep 30, 1975Severe Storms, High Winds & FloodingMajor disaster

Michigan also had 6 statewide declarations that did not name single counties.

Storm history since 1959

Tornado risk by county ›

The National Weather Service has logged 178 storm reports in Isabella County since 1959, with 0 deaths and 7 injuries and about $102 million in reported damage. The strongest on record here was an F2 tornado on October 7, 1965.

12tornadoes
50hail reports, largest 2 inches
102damaging thunderstorm winds
13floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Oct 7, 1965F2–0 / 0
Jun 21, 1996F1Weidman0 / 0
May 21, 2001F1Shepherd1 / 0
Apr 9, 1969F1–0 / 0
May 25, 1973F1–0 / 0

Most damaging storms

DateTypeNearDamage
Jun 23, 2017FloodWinn$91M
Aug 11, 2010Flash FloodMt Pleasant$4M
Apr 17, 2013FloodBrinton$3M
Jun 21, 1996TornadoWeidman$500K
May 31, 1998Thunderstorm WindBrinton$250K
May 21, 2001TornadoShepherd$150K

Source: NOAA Storm Events Database, county-based reports through May 18, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Isabella County

Check your address flood zone ›
0.5%of homes have federal flood insurance (110 policies)
16.8%of homes in mapped high-risk flood zones are insured
$542,744paid on 37 flood claims since 1978
2017costliest year, with $466,934 paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Isabella County

$170,400median home value (Michigan $231,600, US $332,700)
1983median year homes were built (Michigan 1972, US 1980)
47%of homes built before 1980, before many modern wind, quake and flood building rules
8.7%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 28,660 housing units.

Compare in Michigan

All 83 ›
Largest countiesOverall riskTop hazard
Wayne CountyHighInland flooding
Oakland CountyHighInland flooding
Macomb CountyHighInland flooding
Kent CountyModerateInland flooding
Genesee CountyModerateInland flooding
Washtenaw CountyModerateInland flooding
Ottawa CountyModerateInland flooding
Ingham CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Midland CountyLow12
Montcalm CountyLow10
Gratiot CountyLow10
Mecosta CountyLow11
Clare CountyLow7
Gladwin CountyVery Low10
Osceola CountyVery Low12

Common questions about Isabella County

What is the biggest natural hazard in Isabella County?

Inland flooding has the highest expected yearly losses in Isabella County, about $12.3 million a year in FEMA's estimate. Tornado is second at $3.5 million.

How many federal disasters has Isabella County had?

Isabella County has been included in 9 federal disaster or emergency declarations for natural events since 1975, including 5 major disasters. The most recent was Severe Storms and Flooding in August 2017.

Is Isabella County a high-risk place to live?

Its overall rating is Relatively Low, 28th highest of 83 in Michigan. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Isabella County?

Standard home insurance does not cover flooding. About 1 in 200 homes in Isabella County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Isabella County had?

NOAA records list 12 tornadoes in Isabella County since 1950. The strongest was an F2 tornado on October 7, 1965. The weather service has also logged 50 hail reports and 13 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.