Natural hazards · Knox

Knox, OH 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?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Knox to be higher than in 48% of U.S. communities, mostly from inland flooding.

Inland flooding76%Tornadoes5%Heat waves5%Everything else14%

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

76% of expected damage

Above average · higher than 73% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

5% of expected damage

Above average · higher than 56% of U.S. places

Recorded about once every 19 years in the area

Heat waves

5% of expected damage

Above average · higher than 73% of U.S. places

Recorded about 3 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherCold 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 Knox flood?

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

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: Vinton County.

Disasters that hit Knox

Federal disasters declared here

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

Brought FEMA money into KnoxDeclared for Vinton County only

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

Around Knox

Knox and the towns around it

Very lowLowModerateHighVery high

Brownmostly inland floodingHigh

Columbiamostly inland floodingModerate

Knoxmostly inland floodingModerate

Madisonmostly inland floodingModerate

Leemostly inland floodingVery low

Waterloomostly inland floodingVery low

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 is smaller than a census tract, so it shares the figures of the tract around its center.

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.

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.