Enter any address in Sheboygan County, Wisconsin to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Sheboygan County. Over the last 30 years, NOAA Storm Events data shows 22 flood events and 12 flash flood events. For example, on August 16, 2024, persistent thunderstorms produced nearly 5 inches of rain in the Sheboygan area, leading to flash flooding. Another instance on June 25, 2024, saw thunderstorms bring some flooding to eastern Wisconsin.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone X and Zone A have experienced the most claims. While Zone X claims averaged lower payouts and water depths, Zone A claims showed higher average payouts and water depths. Properties in Zone X_UNSHADED have also seen claims, with a notable average water depth. Homeowners in areas designated as Zone A, Zone X_UNSHADED, and those without a Base Flood Elevation (BFE) should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
24 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Sheboygan County, Wisconsin has recorded 36 flood-related events since 1996 according to NOAA's Storm Events Database, including 12 flash floods and 22 river or area floods. The county has received 11 federal disaster declarations, 3 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1973–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jun 5, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Storms And Flooding | Severe Storm | May 7, 2004 |
| Snow | Snowstorm | Dec 11, 2000 |
| Severe Storms And Flooding | Severe Storm | Aug 5, 1998 |
| Severe Storms & Flooding | Flood | Sep 10, 1986 |
| Severe Storms, Icing, Wind & Flooding | Flood | Mar 23, 1976 |
| Tornadoes | Tornado | Apr 26, 1974 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Jul 16, 2025 | 2.00K |
| Flood | Jun 25, 2024 | 1.00K |
| Flash Flood | Aug 16, 2024 | 5.00K |
| Flash Flood | Aug 28, 2021 | 15.00K |
| Flood | May 18, 2020 | 2.00K |
| Flood | May 17, 2020 | 50.00K |
| Lakeshore Flood | May 17, 2020 | — |
| Lakeshore Flood | Jan 11, 2020 | 0.00K |
| Flood | Mar 14, 2019 | 10.00K |
| Flood | Mar 14, 2019 | 5.00K |
Flood — Jul 16, 2025
Two lines of severe thunderstorms tracked across southern Wisconsin from early afternoon through the early evening hours. Numerous supercell thunderstorms developed, producing a number of wall and funnel clouds as well as a few tornadoes. A secondary line of storms came through which caused sporadic wind damage. The main damage was in Iowa county from the strongest tornado which occurred nea...
Flood — Jun 25, 2024
Numerous thunderstorms along a warm front brought large hail, damaging winds, and some flooding to eastern WI. Later in the day, scattered thunderstorms along the cold front brought large hail to the Janesville area.
Flash Flood — Aug 16, 2024
Persistent thunderstorms produced flash flooding and nearly 5 inches of rain in the Sheboygan area as low pressure slowly moved through the area.
Flash Flood — Aug 28, 2021
Slow moving and training thunderstorms in the vicinity of a warm front caused areas of urban and small stream flooding or flash flooding in east central and southeast WI.
Flood — May 18, 2020
A slow moving low pressure area brought a 18-24 hour period of moderate to sometimes heavy rainfall. 3 to 6 inches of rain fell over far eastern WI, which resulted in river, creek, and lowland flooding. Numerous roads were flooded and closed. A small number of water rescues were executed. One indirect death occurred when a retaining wall collapsed onto an elderly woman.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Sheboygan County, Wisconsin:
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.
Properties in Sheboygan County, Wisconsin 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.