FEMA puts Harlem’s expected hazard damage per building below that of 66% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Harlem gets a B+ for hazard risk: lower expected damage per building than 66% of U.S. towns, #159 of 264 in Georgia. Most of that expected damage is river and rain flooding (79%). 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
What Harlem 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
Earthquakes
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.
What’s behind Harlem’s grade
River and rain flooding is 79% of the building damage FEMA expects in Harlem, and Harlem’s rate of river and rain flooding damage is higher than 52% of U.S. census tracts. Next is earthquakes at 7% (higher than 67% of U.S. census tracts).
B+ #159 of 264 in Georgia; lower expected damage per building than 66% of U.S. towns (21,298).
Harlem’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.
The typical Georgia town has lower expected damage than 72% of U.S. towns; within the state, Harlem has more expected damage per building than 60% of Georgia towns.
In dollars, FEMA expects about $784K a year in losses across Harlem: $502K to buildings, the rest to people and crops.
Does Harlem flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Harlem. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Harlem isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Columbia County.3 federal disasters brought FEMA money to Harlem
Disasters that paid out in Harlem itself (aid to households or repair grants to the City of Harlem), newest first, with that year’s flood claims.
- 2024Hurricane Helene2,961 households applied for aid$3.0M aid approved$1.4M to the City of Harlem for repairs
- 2017Hurricane Irma$13K to the City of Harlem for repairs
- 2014Severe Winter Storm$13K to the City of Harlem for repairs
Columbia County has had 8 natural disasters declared by the President since 1953, most often hurricanes and tropical storms, then winter storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Harlem after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Harlem archive →Get ready for what Harlem faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- 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.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Harlem
Is Harlem at risk for natural disasters?
On FEMA’s National Risk Index, Harlem has lower expected damage per building than 66% of U.S. towns: B+ for hazard risk, #159 of 264 in Georgia. Most of the expected damage is river and rain flooding (79%) and earthquakes (7%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Harlem 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 Columbia County, 1.0% of all homes carry federal flood insurance.
How much is flood insurance in Harlem?
FEMA’s Community Rating System list shows no discount for Harlem’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 Harlem?
By FEMA money that reached Harlem, Hurricane Helene (2024): 2,961 households applied for aid, $3.0M approved, and $1.4M to the City of Harlem for repairs.
Is Harlem at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (79%), and Harlem’s rate for it is higher than 52% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Harlem.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Harlem’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.