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Natural hazards · South Lancaster

South Lancaster, WI natural hazards

Most of the natural-hazard damage FEMA expects in South Lancaster comes from inland flooding, and overall the risk is low for a U.S. community. 4 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations
Expected damage

How exposed is South Lancaster?

20
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in South Lancaster to be higher than in 20% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding36%Cold waves18%Tornadoes13%Hail13%Strong wind7%Drought5%Everything else8%
By hazard

What South Lancaster faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

36% of expected damage
Below average · higher than 27% of U.S. places
Recorded about 3 times a year in the area

Cold waves

18% of expected damage
Below average · higher than 31% of U.S. places
Recorded about 6 times a year in the area

Tornadoes

13% of expected damage
Well above average · higher than 84% of U.S. places
Recorded about once every 8 years in the area

Hail

13% of expected damage
Well above average · higher than 85% of U.S. places
Recorded about 3 times a year in the area

Strong wind

7% of expected damage
Well above average · higher than 87% of U.S. places
Recorded about 4 times a year in the area

Drought

5% of expected damage
Recorded about 7 times a year in the area

Lower here

HurricanesIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightning

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic activity
Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Flood insurance claims

Does South Lancaster flood?

FEMA's records show no paid flood insurance claims in South Lancaster.

of homes in flood zones
are insured
of all homes
are insured
No community discount. South Lancaster isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Grant County.
Disasters that hit South Lancaster

4 federal disasters brought FEMA money here

Disasters the President declared that paid out in South Lancaster itself: aid to households, or repair grants to the Town of South Lancaster.

Brought FEMA money into South LancasterDeclared for Grant County only
2011

Severe Winter Storm and Snowstorm

$4K to the Town of South Lancaster for repairs
2008

Severe Storms, Tornadoes, and Flooding

$18K to the Town of South Lancaster for repairs
2004

Severe Storms and Flooding

$10K to the Town of South Lancaster for repairs
2000

Severe Storms, Tornadoes, and Flooding

$939 to the Town of South Lancaster for repairs
Grant County has had 17 natural disasters declared since 1953, most often severe storms and floods.
Around South Lancaster

South Lancaster and the towns around it

Lancaster: Very low, mostly inland floodingEllenboro: Low, mostly inland floodingBeetown: High, mostly inland floodingPotosi: Low, mostly inland floodingNorth Lancaster: High, mostly inland floodingLima: Low, mostly inland floodingLiberty: Low, mostly inland floodingHarrison: Low, mostly inland floodingWaterloo: High, mostly inland floodingGlen Haven: High, mostly inland floodingLittle Grant: High, mostly inland floodingCassville: High, mostly inland floodingBloomington: High, mostly inland floodingParis: Very low, mostly inland floodingJamestown: Very low, mostly inland floodingMount Ida: Very low, mostly inland floodingSouth Lancaster: Low, mostly inland flooding South LancasterLancasterEllenboroBeetownPotosiNorth Lancaster
Very lowLowModerateHighVery high
Beetownmostly inland floodingHigh
North Lancastermostly inland floodingHigh
Potosimostly inland floodingLow
South Lancastermostly inland floodingLow
Ellenboromostly inland floodingLow
Lancastermostly inland floodingVery low
About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. South Lancaster is smaller than a census tract, so it shares the figures of the tract around its center.
Money that reached townFlood claims are matched to South Lancaster’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of South Lancaster. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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