Natural hazards · Norco

Norco, LA natural hazards

Most of the natural-hazard damage FEMA expects in Norco comes from hurricanes, and overall the risk is very high for a U.S. community. Flood insurance has paid 717 claims here since 1978. 7 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Norco?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Norco to be higher than in 93% of U.S. communities, mostly from hurricanes and inland flooding.

Hurricanes63%Inland flooding18%Tornadoes10%Everything else10%

By hazard

What Norco faces

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

Hurricanes

63% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about once every 4 years in the area

Inland flooding

18% of expected damage

Above average · higher than 55% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

10% of expected damage

Above average · higher than 69% of U.S. places

Lower here

HailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Norco flood?

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

717paid claims since 1978

$27.0Mpaid to owners

0homes flooded more than once

19782026

Biggest named events

Hurricane Ida: 168 claims, $11.2M
Hurricane Francine: 75 claims, $4.4M
Hurricane Katrina: 17 claims, $309K

of all homes
are insured

No community discount. Norco isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: St. Charles Parish.

What’s been done with FEMA grants

37homes raised above flood level

1flood-prone properties bought out and cleared

Disasters that hit Norco

7 federal disasters brought FEMA money here

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

Brought FEMA money into NorcoDeclared for St. Charles Parish only

2024

Hurricane Francine

81 households applied for aid $98K aid approved

2021

Hurricane Ida

1,209 households applied for aid $2.2M aid approved

2020

Hurricane Laura

1 household applied for aid

2012

Hurricane Isaac

187 households applied for aid $90K aid approved

2008

Hurricane Gustav

345 households applied for aid $40K aid approved

2005

Hurricane Katrina

1,412 households applied for aid $1.6M aid approved

2004

Hurricane Ivan

4 households applied for aid

St. Charles Parish has had 39 natural disasters declared since 1953, most often hurricanes and floods.

Around Norco

Norco and the towns around it

Very lowLowModerateHighVery high

Norcomostly hurricanesVery high

Hahnvillemostly hurricanesVery high

New Sarpymostly hurricanesVery high

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. Norco covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Norco’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Norco. 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 Norco total about $2.4M 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.