Natural hazards · Johnston

Johnston, OH natural hazards

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

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

Expected damage

How exposed is Johnston?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Johnston to be higher than in 15% of U.S. communities, mostly from inland flooding.

Inland flooding65%Tornadoes14%Strong wind7%Hail5%Everything else9%

By hazard

What Johnston faces

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

Inland flooding

65% of expected damage

Below average · higher than 31% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

14% of expected damage

Above average · higher than 59% of U.S. places

Recorded about once every 45 years in the area

Strong wind

7% of expected damage

Well above average · higher than 82% of U.S. places

Recorded about 2 times a year in the area

Hail

5% of expected damage

Well above average · higher than 79% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesLightning

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 Johnston flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Trumbull County.

Disasters that hit Johnston

Federal disasters declared here

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

Brought FEMA money into JohnstonDeclared for Trumbull County only

Trumbull County has had 9 natural disasters declared since 1953, most often severe storms and tornadoes.

Around Johnston

Johnston and the towns around it

Very lowLowModerateHighVery high

Fowlermostly inland floodingLow

Vernonmostly inland floodingVery low

Johnstonmostly inland floodingVery low

Gustavusmostly inland floodingVery low

Cortlandmostly inland floodingVery low

Meccamostly 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. Johnston 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 Johnston’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Johnston. 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.