Natural hazards · Green Bay

Green Bay, WI natural hazards

Most of the natural-hazard damage FEMA expects in Green Bay comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 162 claims here since 1979. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Green Bay?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Green Bay to be higher than in 23% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding50%Cold waves29%Tornadoes12%Everything else9%

By hazard

What Green Bay faces

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

Inland flooding

50% of expected damage

Below average · higher than 46% of U.S. places

Recorded about once a year in the area

Cold waves

29% of expected damage

Well below average · higher than 21% of U.S. places

Recorded about 6 times a year in the area

Tornadoes

12% of expected damage

Above average · higher than 62% of U.S. places

Lower here

Coastal floodingHurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic 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 Green Bay flood?

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

162paid claims since 1979

$1.7Mpaid to owners

9homes flooded more than once

19792026

Biggest named events

March 2019 Midwest Flooding: 28 claims, $553K
2026-04-Flooding: 3 claims, $198K

Homes that flooded again and again

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

of homes in flood zones
are insured

of all homes
are insured

🏷️ 20% off flood insurance. Green Bay is in FEMA’s Community Rating System (class 6) for its flood-proofing work.

Insurance rates: Brown County.

Disasters that hit Green Bay

2 federal disasters brought FEMA money here

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

Brought FEMA money into Green BayDeclared for Brown County only

2026

Severe Storms, Tornadoes, and Flooding

242 households applied for aid $770K aid approved

2004

Severe Storms and Flooding

10 households applied for aid $9K aid approved

Brown County has had 7 natural disasters declared since 1953, most often severe storms and floods.

Around Green Bay

Green Bay and the towns around it

Very lowLowModerateHighVery high

Allouezmostly inland floodingHigh

Bellevuemostly inland floodingModerate

Green Baymostly inland floodingLow

Hobartmostly inland floodingVery low

Howardmostly inland floodingVery low

Scottmostly inland floodingVery low

Humboldtmostly inland floodingVery low

Ashwaubenonmostly 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. Green Bay covers 27 census tracts, combined by population.

Money that reached townFlood claims are matched to Green Bay’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Green Bay. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Green Bay total about $35.1M a year, counting buildings, people and crops.

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.