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Natural hazards · Elroy

Elroy, WI natural hazards

Most of the natural-hazard damage FEMA expects in Elroy comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 24 claims here since 2008. 4 federal disasters brought FEMA money into town.

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

How exposed is Elroy?

57
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Elroy to be higher than in 57% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding39%Heat waves25%Cold waves20%Tornadoes7%Hail5%Everything else4%
By hazard

What Elroy faces

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

Inland flooding

39% of expected damage
Well above average · higher than 75% of U.S. places
Recorded about once a year in the area

Heat waves

25% of expected damage
Well above average · higher than 81% of U.S. places
Recorded about 3 times a year in the area

Cold waves

20% of expected damage
Below average · higher than 34% of U.S. places
Recorded about 7 times a year in the area

Tornadoes

7% of expected damage
Well above average · higher than 75% of U.S. places
Recorded about once every 34 years in the area

Hail

5% of expected damage
Well above average · higher than 92% of U.S. places
Recorded about 3 times a year in the area

Lower here

HurricanesIce stormsWinter weatherWildfireEarthquakesLandslidesStrong windLightningDrought

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 Elroy flood?

Every paid claim on a federal flood insurance policy in Elroy, from FEMA’s records.

24paid claims since 2008
$2.4Mpaid to owners
1homes flooded more than once
20082026

Biggest named events

  • Storm: 5 claims, $161K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

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

What’s been done with FEMA grants

23flood-prone properties bought out and cleared
Disasters that hit Elroy

4 federal disasters brought FEMA money here

Disasters the President declared that paid out in Elroy itself: aid to households, or repair grants to the City of Elroy.

Brought FEMA money into ElroyDeclared for Juneau County only
2026

Severe Storms, Tornadoes, and Flooding

4 households applied for aid $1K aid approved
2018

Severe Storms, Tornadoes, Straight-Line Winds, Flooding, and Landslides

88 households applied for aid $198K aid approved $127K to the City of Elroy for repairs
2008

Severe Storms, Tornadoes, and Flooding

92 households applied for aid $251K aid approved $48K to the City of Elroy for repairs
2004

Severe Storms and Flooding

3 households applied for aid $2K aid approved $1K to the City of Elroy for repairs
Juneau County has had 14 natural disasters declared since 1953, most often severe storms and floods.
Around Elroy

Elroy and the towns around it

Wonewoc: Moderate, mostly inland floodingPlymouth: High, mostly inland floodingWonewoc: Moderate, mostly inland floodingHillsboro: Moderate, mostly cold wavesWoodland: Moderate, mostly inland floodingSummit: Moderate, mostly inland floodingGlendale: High, mostly inland floodingLindina: High, mostly inland floodingFountain: High, mostly inland floodingElroy: Moderate, mostly inland flooding ElroyWonewocPlymouth
Very lowLowModerateHighVery high
Plymouthmostly inland floodingHigh
Elroymostly inland floodingModerate
Wonewocmostly inland floodingModerate
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. Elroy 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 Elroy’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Elroy. 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/18 · 2025-01-01
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