Natural hazards · Marietta

Marietta, IN natural hazards

Most of the natural-hazard damage FEMA expects in Marietta 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 Marietta?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Marietta to be higher than in 45% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding50%Tornadoes26%Earthquakes6%Everything else18%

By hazard

What Marietta faces

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

Inland flooding

50% of expected damage

Above average · higher than 53% of U.S. places

Recorded about once a year in the area

Tornadoes

26% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about once every 15 years in the area

Earthquakes

6% of expected damage

Above average · higher than 71% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong 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 Marietta flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Shelby County.

Disasters that hit Marietta

Federal disasters declared here

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

Brought FEMA money into MariettaDeclared for Shelby County only

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

Around Marietta

Marietta and the towns around it

Very lowLowModerateHighVery high

Jacksonmostly inland floodingModerate

Mariettamostly inland floodingModerate

Hendricksmostly 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. Marietta 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 Marietta’s own flood-insurance community; household aid to the registrant’s city; repair grants to Marietta. 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.