Cottonwood County, Minnesota
Natural disaster risk, federal disaster history and flood insurance facts.
Cottonwood County, Minnesota has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 72% of US counties. It ranks 57th of 87 counties in Minnesota. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $8.7 million a year in expected losses, or roughly $758 per resident. Since 1965 it has been included in 15 federal disaster or emergency declarations for natural events (13 major disasters). The most recent was in June 2024 (severe storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (59 policies). Since 1978, federal flood insurance has paid about $470,000 on 43 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Cottonwood County
- 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.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
- 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.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 30.9 | $3M | ||
| Cold wave | 70.9 | $2M | ||
| Tornado | 42.8 | $916K | ||
| Hail | 75.2 | $669K | ||
| Strong wind | 53.6 | $582K | ||
| Drought | 66.3 | $395K | ||
| Heat wave | 46.8 | $303K | ||
| Winter weather | 78.4 | $182K | ||
| Ice storm | 53.7 | $95K | ||
| Lightning | 9.3 | $29K | ||
| Wildfire | 32.6 | $16K | ||
| Earthquake | 10.0 | $9K | ||
| Landslide | 36.8 | $494 |
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 Cottonwood County. 2020s bar runs to November 2026.
By type
Most recent
Show all 15
Minnesota also had 26 statewide declarations that did not name single counties.
Storm history since 1952
Tornado risk by county ›The National Weather Service has logged 365 storm reports in Cottonwood County since 1952, with 0 deaths and 7 injuries and about $70 million in reported damage. The strongest on record here was an F3 tornado on March 29, 1998 near Westbrook.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Mar 29, 1998 | F3 | Westbrook | 3 / 0 |
| Jun 23, 1952 | F2 | – | 0 / 0 |
| Jun 14, 1976 | F2 | – | 3 / 0 |
| Jun 16, 1992 | F2 | – | 0 / 0 |
| Jun 28, 1979 | F1 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Mar 29, 1998 | Tornado | Westbrook | $30M |
| Jun 21, 2024 | Flood | Westbrook | $21M |
| Jun 1, 2019 | Flood | Westbrook | $5M |
| Jun 23, 1952 | Tornado | – | $3M |
| Jun 28, 1979 | Tornado | – | $3M |
| Jul 1, 2018 | Flood | Windom | $2M |
Source: NOAA Storm Events Database, county-based reports through Jul 7, 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 Cottonwood County
Check your address flood zone ›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 Cottonwood County
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; 5,168 housing units.
Compare in Minnesota
All 87 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Hennepin County | Inland flooding | |
| Ramsey County | Inland flooding | |
| Dakota County | Inland flooding | |
| Anoka County | Inland flooding | |
| Washington County | Inland flooding | |
| St. Louis County | Cold wave | |
| Olmsted County | Inland flooding | |
| Stearns County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Brown County | 18 | |
| Nobles County | 19 | |
| Redwood County | 19 | |
| Watonwan County | 11 | |
| Jackson County | 16 | |
| Murray County | 15 |
Common questions about Cottonwood County
What is the biggest natural hazard in Cottonwood County?
Inland flooding has the highest expected yearly losses in Cottonwood County, about $3.4 million a year in FEMA's estimate. Cold wave is second at $2.1 million.
How many federal disasters has Cottonwood County had?
Cottonwood County has been included in 15 federal disaster or emergency declarations for natural events since 1965, including 13 major disasters. The most recent was Severe Storms and Flooding in June 2024.
Is Cottonwood County a high-risk place to live?
Its overall rating is Very Low, 57th highest of 87 in Minnesota. 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 Cottonwood County?
Standard home insurance does not cover flooding. About 1 in 125 homes in Cottonwood 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 Cottonwood County had?
NOAA records list 26 tornadoes in Cottonwood County since 1950. The strongest was an F3 tornado on March 29, 1998 near Westbrook. The weather service has also logged 144 hail reports and 54 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.