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Ottawa County, Michigan

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

Relatively Moderate overall risk
9th of 83highest risk in Michigan
$68Mexpected losses a year
14federal declarations
1 in 333homes with flood insurance
Photo: Nheyob, CC BY 4.0

Ottawa County, Michigan has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 83% of US counties. It ranks 9th of 83 counties in Michigan. The costliest hazards here are inland flooding, tornadoes and strong wind. FEMA estimates about $68 million a year in expected losses, or roughly $230 per resident. Since 1965 it has been included in 14 federal disaster or emergency declarations for natural events (9 major disasters). The most recent was in June 2013 (flooding). Fewer than 1 in 100 homes here carry federal flood insurance (318 policies). Since 1978, federal flood insurance has paid about $3.3 million on 336 claims here.

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

Top risks in Ottawa County

$44.6 million a yearExpected losses. Damaging events about once every 1 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
$8.5 million a yearExpected losses. Damaging events about once every 3 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.
$6.9 million a yearExpected losses. Damaging events about 2 times a year.
  • Secure outdoor furniture and trash bins before storms.
  • Have trees near the house checked.
HazardRatingScoreExpected loss a year
Inland floodingModerate88.0
$45M
TornadoModerate87.7
$8M
Strong windHigh97.8
$7M
Cold waveModerate73.4
$3M
HailModerate83.8
$2M
Heat waveLow63.6
$939K
LightningModerate76.5
$867K
EarthquakeLow61.3
$665K
Ice stormModerate77.5
$469K
Winter weatherModerate82.0
$317K
WildfireVery Low34.4
$26K
HurricaneVery Low26.4
$15K
Coastal floodingVery Low35.2
$12K
LandslideVery Low51.8
$2K

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 very low and community resilience is very high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Flood4
Severe Storm4
Snowstorm4
Tornado1
Hurricane1

Most recent

Jun 18, 2013FloodingMajor disaster
Jul 14, 2008Severe Storms, Tornadoes, and FloodingMajor disaster
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Jun 30, 2004Severe Storms, Tornadoes, and FloodingMajor disaster
Jan 10, 2001SnowEmergency
Jan 27, 1999Mi - Severe Weather 1/2 /99Emergency
Jun 24, 1998Severe StormsMajor disaster
Sep 18, 1986Severe Storms & FloodingMajor disaster
Sep 8, 1980Severe Storms & FloodingMajor disaster
Jan 27, 1978Blizzards & SnowstormsEmergency
Show all 14
Feb 5, 1977SnowstormsEmergency
Mar 19, 1976Severe Storms, Tornadoes, Icing & FloodingMajor disaster
Sep 30, 1975Severe Storms, High Winds & FloodingMajor disaster
Apr 14, 1965Tornadoes & Severe StormsMajor disaster

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

Storm history since 1956

Tornado risk by county ›

The National Weather Service has logged 344 storm reports in Ottawa County since 1956, with 21 deaths and 228 injuries and about $108 million in reported damage. The strongest on record here was an F5 tornado on April 3, 1956.

25tornadoes
108hail reports, largest 3 inches
189damaging thunderstorm winds
19floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Apr 3, 1956F5–200 / 14
Apr 11, 1965F4–0 / 0
Apr 3, 1956F3–0 / 0
Mar 6, 1956F2–0 / 0
Jun 22, 1957F2–0 / 0

Most damaging storms

DateTypeNearDamage
May 31, 1998Thunderstorm WindGrand Haven$45M
Jun 19, 2009Flash FloodVriesland$34M
Apr 17, 2013FloodFerrysburg$5M
May 18, 2020FloodGrand Haven Arpt$5M
Dec 27, 2008FloodCrisp$4M
Jun 7, 2008Flash FloodHolland$3M

Source: NOAA Storm Events Database, county-based reports through Jun 11, 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 Ottawa County

Check your address flood zone ›
0.3%of homes have federal flood insurance (318 policies)
15%of homes in mapped high-risk flood zones are insured
$3.3 millionpaid on 336 flood claims since 1978
2013costliest year, with $658,265 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 Ottawa County

$323,400median home value (Michigan $231,600, US $332,700)
1988median year homes were built (Michigan 1972, US 1980)
40%of homes built before 1980, before many modern wind, quake and flood building rules
5.4%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; 117,604 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
Milwaukee County, WIHigh20
Kent CountyModerate11
Racine County, WIModerate15
Muskegon CountyLow12
Allegan CountyLow15

Cities in Ottawa County

Common questions about Ottawa County

What is the biggest natural hazard in Ottawa County?

Inland flooding has the highest expected yearly losses in Ottawa County, about $44.6 million a year in FEMA's estimate. Tornado is second at $8.5 million.

How many federal disasters has Ottawa County had?

Ottawa County has been included in 14 federal disaster or emergency declarations for natural events since 1965, including 9 major disasters. The most recent was Flooding in June 2013.

Is Ottawa County a high-risk place to live?

Its overall rating is Relatively Moderate, 9th 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 Ottawa County?

Standard home insurance does not cover flooding. About 1 in 333 homes in Ottawa 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 Ottawa County had?

NOAA records list 25 tornadoes in Ottawa County since 1950. The strongest was an F5 tornado on April 3, 1956. The weather service has also logged 108 hail reports and 19 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.