Natural hazards · Dennis

Dennis, MS natural hazards

Most of the natural-hazard damage FEMA expects in Dennis comes from inland flooding, and overall the risk is moderate for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Dennis?

Moderate

vs. U.S. communities

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

Inland flooding29%Cold waves23%Tornadoes17%Earthquakes14%Heat waves8%Everything else9%

By hazard

What Dennis faces

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

Inland flooding

29% of expected damage

Below average · higher than 44% of U.S. places

Recorded about once every 2 years in the area

Cold waves

23% of expected damage

Well above average · higher than 92% of U.S. places

Recorded about once a year in the area

Tornadoes

17% of expected damage

Well above average · higher than 95% of U.S. places

Recorded about once every 9 years in the area

Earthquakes

14% of expected damage

Well above average · higher than 80% of U.S. places

Heat waves

8% of expected damage

Above average · higher than 68% of U.S. places

Recorded about 14 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireLandslidesStrong 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 Dennis flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Tishomingo County.

What’s been done with FEMA grants

24storm safe rooms built

Disasters that hit Dennis

3 federal disasters brought FEMA money here

Disasters the President declared that paid out in Dennis itself: aid to households, or repair grants to Dennis.

Brought FEMA money into DennisDeclared for Tishomingo County only

2026

Severe Winter Storm

16 households applied for aid $2K aid approved

2011

Severe Storms, Tornadoes, Straight-Line Winds, and Associated Flooding

6 households applied for aid $30K aid approved

2010

Severe Storms, Tornadoes, and Flooding

1 household applied for aid

Tishomingo County has had 15 natural disasters declared since 1953, most often severe storms and hurricanes.

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