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Ottawa County, Michigan Flood Zones

Check an Address in Ottawa County

Enter any address in Ottawa County, Michigan to see its FEMA flood zone

The Flooding Character of Ottawa County

Flash flooding from thunderstorms and general flooding from heavy rainfall are the dominant flood types in Ottawa County, MI. Over the last 30 years, NOAA Storm Events data shows 13 flash flood events and 8 flood events. Recent examples include significant rainfall causing widespread runoff and road closures in May 2020, and record flooding along the Grand River in April 2013, which led to a state of disaster declaration for multiple counties.

National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A and Zone UNKNOWN have experienced the highest average payouts and water depths. Claims in Zone X also show substantial average payouts and water depths comparable to Zone A. Homeowners in areas designated as Zone A, Zone UNKNOWN, and Zone X, as well as those located near rivers or in areas with a history of flooding, should pay particular attention to flood risk.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from Ottawa County

17 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read Michigan flood stories →

Flood Risk Data for Ottawa County

Ottawa County, Michigan has recorded 21 flood-related events since 1996 according to NOAA's Storm Events Database, including 13 flash floods and 8 river or area floods. The county has received 16 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Ottawa County Disaster History

FEMA Disaster Declarations (1965–2020)

Disaster Declarations
16
Flood/Coastal Disasters
4
Latest Disaster
Covid-19 Pandemic (2020-01-20)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Ottawa County

DeclarationTypeDate
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
FloodingFloodApr 16, 2013
Severe Storms, Tornadoes, And FloodingSevere StormJun 6, 2008
Hurricane Katrina EvacuationHurricaneAug 29, 2005
Severe Storms, Tornadoes, And FloodingSevere StormMay 20, 2004
SnowSnowstormDec 11, 2000
Mi - Severe Weather 1/2 /99SnowstormJan 2, 1999
Severe StormsSevere StormMay 29, 1998
Severe Storms & FloodingFloodSep 10, 1986

Recorded Flood Events in Ottawa County

NOAA Storm Events Database (1996–2025)

Total Flood Events
21
River/Area Floods
8
Flash Floods
13
Total Property Damage
$55.1M
Flood Deaths
2
Flood Injuries
3

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Ottawa County

TypeDateDamage
FloodMay 18, 20205.00M
FloodApr 17, 20135.00M
Flash FloodJun 21, 20111.50M
Flash FloodJun 21, 20110.00K
Flash FloodJun 19, 200934.00M
FloodDec 27, 20083.60M
FloodJun 8, 20085.00K (1 deaths)
Flash FloodJun 7, 20081.00M (1 deaths)
FloodMay 21, 20041M
Flash FloodOct 24, 200125K

Ottawa County Flood History

Flood — May 18, 2020

Significant rainfall fell across all of Lower Michigan on May 17 and 18 with many locations in Southwest Lower Michigan reporting over 3 inches of rain. This was the culmination of an already wet week that had experienced three separate episodes of heavy rain. As a result, soil was already saturated and this additional rain immediately became runoff instead of soaking into the ground. There we...

Flood — Apr 17, 2013

Record flooding occurred during the month of April and record crests occurred on the lower portions of the Grand River at Ionia, Lowell, Ada, Comstock Park, and Grand Rapids, Michigan. Due to the severity of the flooding, Michigan���s Governor Rick Snyder declared a state of disaster for 19 counties and two cities. ||The two cities declared in the disaster were Grand Rapids and Ionia. T...

Flash Flood — Jun 21, 2011

A warm front moved north across southern and central lower Michigan during the day of June 21st, allowing a much warmer and very humid airmass to advect into the area. Thunderstorms developed during the mid afternoon hours due to the building heat and instability and lake breeze convergence. The first of the thunderstorms developed near Holland around 4 p.m. just a couple miles inland of Lake...

Flash Flood — Jun 19, 2009

Thunderstorms developed and moved across Lake Michigan during the evening hours on June 19th. Several hours of intense rainfall occurred starting around 7:00 PM EST. The ground was already saturated from early morning thunderstorms that produced very heavy rainfall. In addition to the heavy rain, severe thunderstorms and tornadoes accompanied the thunderstorms.

Flood — Dec 27, 2008

Most of southwestern lower Michigan had a substantial snowpack on the ground on Christmas Day. Most if not all of that snowpack melted as a result of warm temperatures, high winds and rain after Christmas. Several locations received an inch and a half to two inches of rainfall, all of which fell in only a twenty four hour time period. The flooding caused well over three million dollars worth of...

Source: NOAA National Weather Service Storm Events Database.

Ottawa County NFIP Flood Insurance Claims

Total Claims Filed
278
Total Paid Out
$2.8M
Avg Claim
$14,557
Avg Water Depth
7.8 ft

Claims by Flood Zone

A Zones (High Risk)
124
X Shaded (500-yr)
24
X Unshaded (Low)
31

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Ottawa County

FEMA assigns flood zone designations to areas in Ottawa County, Michigan:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Ottawa County

Properties in Ottawa County, Michigan that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.

Visit FloodSmart.gov to find an agent and get a quote.