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C+Hazard risk
Natural hazards in Fairfield · FEMA

FEMA expects about as much hazard damage per building in Fairfield as in the typical U.S. town, mostly from river and rain flooding

On FEMA’s National Risk Index, Fairfield gets a C+ for hazard risk: higher expected damage per building than 60% of U.S. towns. Most of that expected damage is river and rain flooding (80%). FEMA’s files show no paid flood insurance claims here.

Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded

more than 60%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Fairfield faces

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

River and rain flooding

80%of expected building damage
Above average · higher than 72% of U.S. census tracts
Recorded about 2 times a year in the area

Tornadoes

9%of expected building damage
Well above average · higher than 80% of U.S. census tracts

Hail

9%of expected building damage
Well above average · in the top 8% of U.S. census tracts
Recorded about 4 times a year in the area
Smaller shares here
 Strong wind Lightning top 2% Wildfire Earthquakes Hurricanes Winter storms Ice storms Cold waves Heat waves Landslides
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts cold waves at 15% of Fairfield’s expected losses. Cold waves do little damage to buildings (0.0%), so they aren’t part of the grade.

Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.

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

What’s behind Fairfield’s grade

River and rain flooding is 80% of the building damage FEMA expects in Fairfield, and Fairfield’s rate of river and rain flooding damage is higher than 72% of U.S. census tracts. Hail adds 9%, at a rate in the top 8% of U.S. census tracts.

Where Fairfield sits
Fairfield
Least damageMiddleMost damage

C+ higher expected damage per building than 60% of U.S. towns (21,298).

Fairfield’s residents live in 3 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding80%Tornadoes9%Hail9%Everything else2%

In dollars, FEMA expects about $662K a year in losses across Fairfield: $438K to buildings, the rest to people and crops.

A small-area figure. Fairfield covers 3 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Fairfield flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Fairfield. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Fairfield isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Sauk County.
Disasters

3 federal disasters brought FEMA money to Fairfield

Disasters that paid out in Fairfield itself (aid to households or repair grants to the Town of Fairfield), newest first, with that year’s flood claims.

  1. 2008Severe Storms, Tornadoes, and Flooding$53K to the Town of Fairfield for repairs
  2. 2007Severe Storms and Flooding$2K to the Town of Fairfield for repairs
  3. 2000Severe Storms, Tornadoes, and Flooding$4K to the Town of Fairfield for repairs
Disasters declared, by decade
Paid out in FairfieldSauk County only

Sauk County has had 12 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Were you here?

Old photos of Fairfield after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Fairfield archive →
Next door

Fairfield and its neighbors

Fairfield is 3rd of the 5 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
BarabooB−less damage than 52%river and rain flooding—
DeltonB−more damage than 53%river and rain flooding—
FairfieldC+more damage than 60%river and rain flooding0
LewistonC−more damage than 83%hail4
CaledoniaDmore damage than 88%hail26
Newport—597 residents; we grade 1,000+
Greenfield—961 residents; we grade 1,000+

Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.

Be ready

Get ready for what Fairfield faces

A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.

When the river rises
  • Turn around at flooded roads: a foot of moving water can carry off a car.
  • Flood insurance usually takes 30 days to start, so buy it before the forecast.
  • Keep papers and medicines up high, in a grab-and-go bag.
More from Ready.gov ↗
Tornado warnings
  • Pick your spot now: the lowest floor, an inside room, no windows.
  • A watch means be ready; a warning means take cover now.
  • Keep shoes and a flashlight by the bed.
More from Ready.gov ↗
Hail
  • Park in a garage or under cover when storms are forecast.
  • Stay away from windows while it falls.
  • Photograph roof and car damage for your insurer.
More from Ready.gov ↗
Before you buy or rent
  • Look up the address on FEMA’s flood map.
  • Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
  • Get a flood insurance quote early: policies usually start 30 days after you buy.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Fairfield

Is Fairfield at risk for natural disasters?

On FEMA’s National Risk Index, Fairfield has higher expected damage per building than 60% of U.S. towns: C+ for hazard risk. Most of the expected damage is river and rain flooding (80%) and tornadoes (9%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Fairfield in a flood zone?

Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Sauk County, 39% of homes in mapped flood zones carry federal flood insurance, and 0.5% of all homes do.

How much is flood insurance in Fairfield?

FEMA’s Community Rating System list shows no discount for Fairfield’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

What was the biggest storm in Fairfield?

By FEMA money that reached Fairfield, Severe Storms, Tornadoes, and Flooding (2008): $53K to the Town of Fairfield for repairs.

Is Fairfield at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (80%), and Fairfield’s rate for it is higher than 72% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Fairfield.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Fairfield’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.