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Natural hazards · Knox

Knox, IL natural hazards

Most of the natural-hazard damage FEMA expects in Knox comes from inland flooding, and overall the risk is moderate for a U.S. community.

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

How exposed is Knox?

44
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Knox to be higher than in 44% of U.S. communities, mostly from inland flooding and strong winds.

Inland flooding27%Strong wind19%Cold waves16%Tornadoes14%Heat waves9%Hail6%Everything else8%
By hazard

What Knox faces

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

Inland flooding

27% of expected damage
Below average · higher than 39% of U.S. places
Recorded about once a year in the area

Strong wind

19% of expected damage
Well above average · higher than 98% of U.S. places
Recorded about 6 times a year in the area

Cold waves

16% of expected damage
Above average · higher than 62% of U.S. places
Recorded about 6 times a year in the area

Tornadoes

14% of expected damage
Well above average · higher than 88% of U.S. places
Recorded about once every 75 years in the area

Heat waves

9% of expected damage
Above average · higher than 66% of U.S. places
Recorded about 6 times a year in the area

Hail

6% of expected damage
Well above average · higher than 93% of U.S. places
Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherWildfireEarthquakesLandslidesLightningDrought

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 Knox flood?

FEMA's records show no paid flood insurance claims in Knox.

of homes in flood zones
are insured
of all homes
are insured
No community discount. Knox isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Knox County.
Disasters that hit Knox

Federal disasters declared here

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

Brought FEMA money into KnoxDeclared for Knox County only
Knox County has had 9 natural disasters declared since 1953, most often floods and winter storms.
Around Knox

Knox and the towns around it

Galesburg: High, mostly inland floodingGalesburg City: High, mostly inland floodingGalesburg: Moderate, mostly inland floodingPersifer: High, mostly inland floodingEast Galesburg: Moderate, mostly inland floodingOrange: High, mostly inland floodingKnoxville: Low, mostly inland floodingSparta: High, mostly inland floodingCopley: Moderate, mostly inland floodingHenderson: High, mostly inland floodingCedar: High, mostly inland floodingColdbrook: High, mostly droughtTruro: High, mostly inland floodingHaw Creek: High, mostly inland floodingChestnut: High, mostly inland floodingOntario: Moderate, mostly inland floodingWalnut Grove: Moderate, mostly inland floodingVictoria: Moderate, mostly inland floodingKnox: Moderate, mostly inland flooding KnoxGalesburgGalesburg CityGalesburgPersiferEast GalesburgOrangeKnoxvilleSpartaCopley
Very lowLowModerateHighVery high
Orangemostly inland floodingHigh
Galesburgmostly inland floodingHigh
Galesburg Citymostly inland floodingHigh
Persifermostly inland floodingHigh
Spartamostly inland floodingHigh
East Galesburgmostly inland floodingModerate
Copleymostly inland floodingModerate
Galesburgmostly inland floodingModerate
Knoxmostly inland floodingModerate
Knoxvillemostly inland floodingLow
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. Knox covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Knox’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Knox. 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 Knox total about $1.6M 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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