Sherman County, Nebraska
Natural disaster risk, federal disaster history and flood insurance facts.
Sherman County, Nebraska has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 78% of US counties. It ranks 45th of 93 counties in Nebraska. The costliest hazards here are hail, drought and inland flooding. FEMA estimates about $8.2 million a year in expected losses, or roughly $2,759 per resident. Since 1966 it has been included in 17 federal disaster or emergency declarations for natural events (16 major disasters). The most recent was in May 2024 (severe storms, straight-line winds and tornadoes). Only 4 homes here carry federal flood insurance.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Sherman County
- Ask about the roof age and any impact-rated shingles.
- Check your home policy for a separate wind and hail deductible.
- Check local water restrictions.
- Choose drought-tolerant plants.
- 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.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Hail | 95.8 | $4M | ||
| Drought | 88.7 | $2M | ||
| Inland flooding | 9.4 | $1M | ||
| Strong wind | 65.3 | $878K | ||
| Tornado | 25.0 | $379K | ||
| Wildfire | 67.5 | $149K | ||
| Cold wave | 10.8 | $89K | ||
| Winter weather | 57.5 | $87K | ||
| Ice storm | 41.9 | $60K | ||
| Heat wave | 15.5 | $40K | ||
| Lightning | 9.1 | $31K | ||
| Earthquake | 6.5 | $7K | ||
| Landslide | 21.1 | $134 |
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 relatively low in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Sherman County. 2020s bar runs to November 2026.
By type
Most recent
Show all 17
Nebraska also had 14 statewide declarations that did not name single counties.
Storm history since 1953
Tornado risk by county ›The National Weather Service has logged 328 storm reports in Sherman County since 1953, with 1 death and 14 injuries and about $104 million in reported damage. The strongest on record here was an F4 tornado on June 7, 1953.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jun 7, 1953 | F4 | – | 0 / 0 |
| Jul 8, 1955 | F2 | – | 13 / 1 |
| Jun 7, 1953 | F2 | – | 0 / 0 |
| Jun 20, 2011 | EF2 | Rockville | 0 / 0 |
| Apr 20, 1974 | F2 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Jun 7, 2022 | Thunderstorm Wind | Litchfield | $10M |
| Jun 7, 2022 | Hail | Litchfield | $10M |
| Jul 9, 2014 | Hail | Loup City | $8M |
| Jun 7, 2022 | Hail | Hazard | $6M |
| Jul 24, 2013 | Hail | Ashton | $5M |
| Jun 20, 2014 | Hail | Rockville | $5M |
Source: NOAA Storm Events Database, county-based reports through Aug 29, 2025. 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 Sherman 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 Sherman 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; 1,796 housing units.
Compare in Nebraska
All 93 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Douglas County | Inland flooding | |
| Lancaster County | Tornado | |
| Sarpy County | Tornado | |
| Hall County | Inland flooding | |
| Buffalo County | Hail | |
| Dodge County | Inland flooding | |
| Scotts Bluff County | Hail | |
| Madison County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Buffalo County | 17 | |
| Custer County | 18 | |
| Howard County | 22 | |
| Valley County | 16 | |
| Greeley County | 18 |
Common questions about Sherman County
What is the biggest natural hazard in Sherman County?
Hail has the highest expected yearly losses in Sherman County, about $3.5 million a year in FEMA's estimate. Drought is second at $1.6 million.
How many federal disasters has Sherman County had?
Sherman County has been included in 17 federal disaster or emergency declarations for natural events since 1966, including 16 major disasters. The most recent was Severe Storms, Straight-Line Winds, and Tornadoes in May 2024.
Is Sherman County a high-risk place to live?
Its overall rating is Very Low, 45th highest of 93 in Nebraska. 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 Sherman County?
Standard home insurance does not cover flooding. About 1 in 1000 homes in Sherman 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 Sherman County had?
NOAA records list 29 tornadoes in Sherman County since 1950. The strongest was an F4 tornado on June 7, 1953. The weather service has also logged 190 hail reports and 14 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.