More hazard damage per building is expected in Rapidan Township than in 80% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Rapidan Township gets a C− for hazard risk: higher expected damage per building than 80% of U.S. towns. Most of that expected damage is river and rain flooding (80%). FEMA’s files show no paid flood insurance claims here.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What Rapidan 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
Tornadoes
Strong wind
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.
What’s behind Rapidan Township’s grade
River and rain flooding is 80% of the building damage FEMA expects in Rapidan Township, and Rapidan Township’s rate of river and rain flooding damage is higher than 86% of U.S. census tracts. Strong wind adds 7%, at a rate in the top 2% of U.S. census tracts.
C− higher expected damage per building than 80% of U.S. towns (21,298).
Rapidan Township’s residents live in 4 census tracts; FEMA’s figures are combined by where they live.
In dollars, FEMA expects about $827K a year in losses across Rapidan Township: $535K to buildings, the rest to people and crops.
Does Rapidan Township flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Rapidan Township. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Rapidan 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: Blue Earth County.The storms Rapidan Township remembers
None of the 20 disasters declared for Blue Earth County shows FEMA aid or repair money reaching Rapidan Township itself in FEMA’s records, so these are its biggest flood-claim years.
Blue Earth County has had 20 natural disasters declared by the President since 1953, most often floods, then severe storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Rapidan Township and its neighbors
Rapidan Township is 3rd of the 4 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Mankato Township | B−more damage than 53% | river and rain flooding | 5 |
| South Bend Township | Cmore damage than 66% | river and rain flooding | — |
| Rapidan Township | C−more damage than 80% | river and rain flooding | 0 |
| Decoria Township | C−more damage than 83% | river and rain flooding | 14 |
| Lyra Township | — | 266 residents; we grade 1,000+ | |
| Garden City Township | — | 652 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.
Get ready for what Rapidan 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.
- 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.
- 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.
- Trim dead limbs over the house and driveway.
- Tie down trash cans and outdoor furniture.
- Stay clear of downed lines and call the utility.
- 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.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Rapidan Township
Is Rapidan Township at risk for natural disasters?
On FEMA’s National Risk Index, Rapidan Township has higher expected damage per building than 80% of U.S. towns: C− for hazard risk. Most of the expected damage is river and rain flooding (80%) and tornadoes (9%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Rapidan 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 Blue Earth County, 0.2% of all homes carry federal flood insurance.
How much is flood insurance in Rapidan Township?
FEMA’s Community Rating System list shows no discount for Rapidan Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
Is Rapidan Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (80%), and Rapidan Township’s rate for it is higher than 86% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Rapidan Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Rapidan 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.