Mower County, Minnesota
Natural disaster risk, federal disaster history and flood insurance facts.
Mower County, Minnesota has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 67% of US counties. It ranks 19th of 87 counties in Minnesota. The costliest hazards here are inland flooding, tornadoes and drought. FEMA estimates about $27 million a year in expected losses, or roughly $673 per resident. Since 1965 it has been included in 14 federal disaster or emergency declarations for natural events (12 major disasters). The most recent was in June 2024 (severe storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (75 policies). Since 1978, federal flood insurance has paid about $11 million on 733 claims here, including $5.5 million for floods in 2004.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Mower 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.
- 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.
- Check local water restrictions.
- Choose drought-tolerant plants.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 75.0 | $16M | ||
| Tornado | 81.2 | $4M | ||
| Drought | 91.9 | $2M | ||
| Cold wave | 57.8 | $1M | ||
| Hail | 85.8 | $1M | ||
| Strong wind | 74.2 | $1M | ||
| Heat wave | 41.0 | $247K | ||
| Winter weather | 77.2 | $185K | ||
| Lightning | 23.4 | $83K | ||
| Ice storm | 35.4 | $44K | ||
| Earthquake | 17.7 | $24K | ||
| Wildfire | 18.8 | $7K | ||
| Landslide | 24.7 | $193 |
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 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 Mower County. 2020s bar runs to November 2026.
By type
Most recent
Show all 14
Minnesota also had 26 statewide declarations that did not name single counties.
Storm history since 1959
Tornado risk by county ›The National Weather Service has logged 487 storm reports in Mower County since 1959, with 0 deaths and 14 injuries and about $58.7 million in reported damage. The strongest on record here was an F3 tornado on June 11, 2004 near Le Roy.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jun 11, 2004 | F3 | Le Roy | 0 / 0 |
| Apr 30, 1967 | F2 | – | 0 / 0 |
| Jul 27, 1995 | F2 | Adams | 0 / 0 |
| Jun 7, 1984 | F2 | – | 7 / 0 |
| Jun 17, 2009 | EF2 | Ramsey | 1 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Apr 30, 1967 | Tornado | – | $25M |
| Jul 27, 1995 | Tornado | Adams | $5M |
| Jun 27, 1998 | Thunderstorm Wind | Austin | $3M |
| Jun 11, 2004 | Tornado | Le Roy | $3M |
| Jun 7, 1984 | Tornado | – | $3M |
| Jun 17, 2009 | Tornado | Ramsey | $2M |
Source: NOAA Storm Events Database, county-based reports through Jul 8, 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 Mower 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 Mower 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; 17,014 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 |
|---|---|---|
| Olmsted County | 13 | |
| Steele County | 15 | |
| Freeborn County | 19 | |
| Fillmore County | 16 | |
| Dodge County | 14 | |
| Mitchell County, IA | 18 | |
| Howard County, IA | 21 | |
| Worth County, IA | 14 |
Cities in Mower County
Common questions about Mower County
What is the biggest natural hazard in Mower County?
Inland flooding has the highest expected yearly losses in Mower County, about $16.4 million a year in FEMA's estimate. Tornado is second at $4.3 million.
How many federal disasters has Mower County had?
Mower County has been included in 14 federal disaster or emergency declarations for natural events since 1965, including 12 major disasters. The most recent was Severe Storms and Flooding in June 2024.
Is Mower County a high-risk place to live?
Its overall rating is Relatively Low, 19th 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 Mower County?
Standard home insurance does not cover flooding. About 1 in 250 homes in Mower 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 Mower County had?
NOAA records list 34 tornadoes in Mower County since 1950. The strongest was an F3 tornado on June 11, 2004 near Le Roy. The weather service has also logged 156 hail reports and 88 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.