Home › Wisconsin › Buffalo County

Buffalo County, Wisconsin

Natural disaster risk, federal disaster history and flood insurance facts.

Very Low overall risk
69th of 72highest risk in Wisconsin
$7Mexpected losses a year
14federal declarations
1 in 143homes with flood insurance
Photo: U.S. Geological Survey, public domain

Buffalo County, Wisconsin has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 86% of US counties. It ranks 69th of 72 counties in Wisconsin. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $7.0 million a year in expected losses, or roughly $527 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 2026 (severe storms, tornadoes and flooding). Only 36 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $328,000 on 29 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Buffalo County

$3.4 million a yearExpected losses. Damaging events about once a year.
  • 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.
$1.4 million a yearExpected losses. Damaging events about 8 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
$868,941 a yearExpected losses. Damaging events about once every 3 years.
  • 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.
HazardRatingScoreExpected loss a year
Inland floodingVery Low24.6
$3M
Cold waveLow55.5
$1M
TornadoLow36.4
$869K
HailLow62.2
$484K
Strong windLow28.7
$329K
Heat waveVery Low30.0
$160K
LightningLow24.2
$100K
DroughtLow40.9
$85K
LandslideModerate91.4
$80K
Ice stormLow40.0
$63K
Winter weatherVery Low23.6
$25K
EarthquakeVery Low1.9
$2K
WildfireVery Low4.3
$2K

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 very low and community resilience is relatively moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Buffalo County. 2020s bar runs to November 2026.

By type

Severe Storm6
Flood5
Tornado1
Drought1
Hurricane1

Most recent

Jun 30, 2026Severe Storms, Tornadoes, and FloodingMajor disaster
Oct 7, 2017Severe Storms, Straight-Line Winds, Flooding, Landslides, and MudMajor disaster
Oct 21, 2010Severe Storms and FloodingMajor disaster
Sep 13, 2005Hurricane Katrina EvacuationEmergency
May 11, 2001Flooding, Severe Storms and TornadoesMajor disaster
Jul 24, 1998Severe Storms,Straigh Line Winds, Tornadoes,Rain,And FloodiMajor disaster
Jul 2, 1993Severe Storms, Tornadoes & FloodingMajor disaster
Sep 30, 1992Severe Storms & FloodingMajor disaster
Jul 7, 1978Severe Storms, Flooding, Hail & TornadoesMajor disaster
Jun 17, 1976DroughtEmergency
Show all 14
Sep 15, 1975Heavy Rains, Tornadoes & Flash FloodsMajor disaster
Apr 27, 1973Severe Storms & FloodingMajor disaster
May 1, 1969FloodingMajor disaster
Apr 21, 1965Tornadoes, Severe Storms & FloodingMajor disaster

Wisconsin also had 8 statewide declarations that did not name single counties.

Storm history since 1953

Tornado risk by county ›

The National Weather Service has logged 349 storm reports in Buffalo County since 1953, with 0 deaths and 9 injuries and about $28.7 million in reported damage. The strongest on record here was an F4 tornado on May 10, 1953.

21tornadoes
138hail reports, largest 4 inches
136damaging thunderstorm winds
36floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 10, 1953F4–0 / 0
Apr 17, 2026EF3Glencoe0 / 0
May 17, 1982F2–3 / 0
Jun 28, 1960F2–0 / 0
Sep 9, 1990F1–1 / 0

Most damaging storms

DateTypeNearDamage
Aug 11, 2016Flash FloodMondovi$4M
Jul 19, 2017Flash FloodBuffalo City$3M
May 10, 1953Tornado–$3M
May 17, 1982Tornado–$3M
Sep 9, 1990Tornado–$3M
Jul 20, 2017FloodBuffalo City$2M

Source: NOAA Storm Events Database, county-based reports through Jun 19, 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 Buffalo County

Check your address flood zone ›
0.7%of homes have federal flood insurance (36 policies)
13.3%of homes in mapped high-risk flood zones are insured
$328,213paid on 29 flood claims since 1978
2010costliest year, with $149,000 paid

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 Buffalo County

$213,300median home value (Wisconsin $266,500, US $332,700)
1969median year homes were built (Wisconsin 1975, US 1980)
65%of homes built before 1980, before many modern wind, quake and flood building rules
5.5%of homes are mobile homes, which are the least safe in tornadoes and high winds

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; 6,522 housing units.

Compare in Wisconsin

All 72 ›
Largest countiesOverall riskTop hazard
Milwaukee CountyHighCold wave
Dane CountyModerateInland flooding
Waukesha CountyModerateInland flooding
Brown CountyModerateInland flooding
Racine CountyModerateInland flooding
Outagamie CountyLowInland flooding
Winnebago CountyModerateInland flooding
Kenosha CountyModerateCold wave

Neighboring counties

CountyOverall riskDeclarations
Eau Claire CountyLow7
Winona County, MNLow15
Trempealeau CountyLow13
Wabasha County, MNLow15
Pepin CountyVery Low11

Common questions about Buffalo County

What is the biggest natural hazard in Buffalo County?

Inland flooding has the highest expected yearly losses in Buffalo County, about $3.4 million a year in FEMA's estimate. Cold wave is second at $1.4 million.

How many federal disasters has Buffalo County had?

Buffalo 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, Tornadoes, and Flooding in June 2026.

Is Buffalo County a high-risk place to live?

Its overall rating is Very Low, 69th highest of 72 in Wisconsin. 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 Buffalo County?

Standard home insurance does not cover flooding. About 1 in 143 homes in Buffalo 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 Buffalo County had?

NOAA records list 21 tornadoes in Buffalo County since 1950. The strongest was an F4 tornado on May 10, 1953. The weather service has also logged 138 hail reports and 36 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.