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–Not graded
Natural hazards in Rock Dell Township · FEMA

Storms, floods and disasters in Rock Dell Township

Rock Dell Township isn’t graded for hazard risk: Rock Dell Township has 772 residents; we grade towns of 1,000 or more.

Flood claims
0
paid since 1978 · $0
Disasters paid out here
0
of 12 declared for Olmsted County
By hazard

What Rock Dell Township faces

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

River and rain flooding

74%of expected building damage
Below average · lower than 64% of U.S. census tracts
Recorded about once a year in the area

Tornadoes

18%of expected building damage
Well above average · higher than 89% of U.S. census tracts
Recorded about once every 9 years in the area

Hail

5%of expected building damage
Well above average · higher than 81% of U.S. census tracts
Recorded about 5 times a year in the area
Smaller shares here
 Strong wind Lightning Earthquakes Wildfire Winter storms Ice storms Cold waves Heat waves Landslides
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts cold waves at 16% of Rock Dell Township’s expected losses. Cold waves do little damage to buildings (0.0%), so they aren’t part of the grade.

Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.

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 Rock Dell Township flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Rock Dell Township. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Rock Dell Township isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Olmsted County.
Disasters

The storms Rock Dell Township remembers

None of the 12 disasters declared for Olmsted County shows FEMA aid or repair money reaching Rock Dell Township itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in Rock Dell TownshipOlmsted County only

Olmsted County has had 12 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Next door

Rock Dell Township and its neighbors

How expected damage per building compares across the town line. Tap a town to see its hazards.

High Forest Township: not gradedVernon Township: not gradedSalem Township: hazard risk A−High Forest TownshipVernon TownshipSalem TownshipRock Dell Township
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Salem TownshipA−less damage than 75%river and rain flooding—
High Forest Township—894 residents; we grade 1,000+
Vernon Township—705 residents; we grade 1,000+

Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.

Be ready

Get ready for what Rock Dell Township faces

A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.

When the river rises
  • Turn around at flooded roads: a foot of moving water can carry off a car.
  • Flood insurance usually takes 30 days to start, so buy it before the forecast.
  • Keep papers and medicines up high, in a grab-and-go bag.
More from Ready.gov ↗
Tornado warnings
  • Pick your spot now: the lowest floor, an inside room, no windows.
  • A watch means be ready; a warning means take cover now.
  • Keep shoes and a flashlight by the bed.
More from Ready.gov ↗
Hail
  • Park in a garage or under cover when storms are forecast.
  • Stay away from windows while it falls.
  • Photograph roof and car damage for your insurer.
More from Ready.gov ↗
Before you buy or rent
  • Look up the address on FEMA’s flood map.
  • Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
  • Get a flood insurance quote early: policies usually start 30 days after you buy.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Rock Dell Township

Is Rock Dell Township in a flood zone?

Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Olmsted County, 16% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in Rock Dell Township?

FEMA’s Community Rating System list shows no discount for Rock Dell Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

Storm stories

Memories, warnings and help from neighbors in Rock Dell Township.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Rock Dell Township’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.