Natural hazards · Erienna

Erienna, IL natural hazards

Most of the natural-hazard damage FEMA expects in Erienna comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 34 claims here since 1978.

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

Expected damage

How exposed is Erienna?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Erienna to be higher than in 82% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding52%Cold waves35%Tornadoes8%Everything else5%

By hazard

What Erienna faces

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

Inland flooding

52% of expected damage

Well above average · higher than 94% of U.S. places

Recorded about once a year in the area

Cold waves

35% of expected damage

Well below average · higher than 18% of U.S. places

Recorded about 5 times a year in the area

Tornadoes

8% of expected damage

Well above average · higher than 87% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Erienna flood?

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

34paid claims since 1978

$936Kpaid to owners

0homes flooded more than once

19782026

Biggest named events

Mid-spring storms: 18 claims, $709K
Hurricane Ike: 1 claim, $17K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Grundy County.

Disasters that hit Erienna

Federal disasters declared here

None of the disasters declared for Grundy County shows FEMA aid or repair money reaching Erienna itself in FEMA’s records.

Brought FEMA money into EriennaDeclared for Grundy County only

Grundy County has had 13 natural disasters declared since 1953, most often floods and winter storms.

Around Erienna

Erienna and the towns around it

Very lowLowModerateHighVery high

Eriennamostly inland floodingVery high

Morrismostly inland floodingVery high

Normanmostly inland floodingVery high

Wauponseemostly inland floodingVery high

Nettle Creekmostly inland floodingHigh

Morrismostly cold wavesModerate

Manliusmostly inland floodingModerate

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. Erienna covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Erienna’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Erienna. 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 Erienna total about $6.1M 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.