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C−Hazard risk
Natural hazards in Northfield · FEMA

FEMA puts Northfield’s expected hazard damage per building above that of 81% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Northfield gets a C− for hazard risk: higher expected damage per building than 81% of U.S. towns. Most of that expected damage is river and rain flooding (91%). 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 81%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Northfield 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

91%of expected building damage
Well above average · in the top 10% of U.S. census tracts
Recorded about 4 times a year in the area

Tornadoes

6%of expected building damage
Above average · higher than 79% of U.S. census tracts
Smaller shares here
 Earthquakes Hail Strong wind Ice storms Hurricanes Wildfire Winter storms Cold waves Heat waves Landslides Lightning
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts tornadoes at 15% of Northfield’s expected losses. Tornadoes do little damage to buildings (6.3%), 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 Northfield’s grade

River and rain flooding is 91% of the building damage FEMA expects in Northfield, and Northfield’s rate of river and rain flooding damage is in the top 10% of U.S. census tracts. Next is tornadoes at 6% (higher than 79% of U.S. census tracts).

Where Northfield sits
Northfield
Least damageMiddleMost damage

C− higher expected damage per building than 81% of U.S. towns (21,298).

Northfield’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding91%Tornadoes6%Everything else2%

In dollars, FEMA expects about $782K a year in losses across Northfield: $667K to buildings, the rest to people and crops.

A small-area figure. Northfield covers 2 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 Northfield flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Northfield. 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

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

Insurance rates: Jefferson County.
Disasters

The storms Northfield remembers

None of the 18 disasters declared for Jefferson County shows FEMA aid or repair money reaching Northfield itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in NorthfieldJefferson County only

Jefferson County has had 18 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.

Next door

Northfield and its neighbors

Northfield has the lowest expected damage per building of the 1 graded towns here. Tap a town to see its hazards.

Glenview Manor: not gradedGlenview ManorNorthfield
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
NorthfieldC−more damage than 81%river and rain flooding0
Glenview Manor—170 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 Northfield 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 ↗
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 Northfield

Is Northfield at risk for natural disasters?

On FEMA’s National Risk Index, Northfield has higher expected damage per building than 81% of U.S. towns: C− for hazard risk. Most of the expected damage is river and rain flooding (91%) and tornadoes (6%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Northfield 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 Jefferson County, 53% of homes in mapped flood zones carry federal flood insurance, and 1.2% of all homes do.

How much is flood insurance in Northfield?

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

Is Northfield at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (91%), and Northfield’s rate for it is in the top 10% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Northfield.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Northfield’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.