Photo: Bobak Ha'Eri · CC BY 3.0For strong wind, Mankato Township’s building-damage rate is in the top 2% of U.S. census tracts
On FEMA’s National Risk Index, Mankato Township gets a B− for hazard risk: higher expected damage per building than 53% of U.S. towns. Most of that expected damage is river and rain flooding (68%), then tornadoes (14%). Flood insurance has paid 5 claims here since 1979.
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 Mankato 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 Mankato Township’s grade
River and rain flooding is 68% of the building damage FEMA expects in Mankato Township, and Mankato Township’s rate of river and rain flooding damage is higher than 58% of U.S. census tracts. Tornadoes add 14%, at a rate in the top 10% of U.S. census tracts.
B− higher expected damage per building than 53% of U.S. towns (21,298).
Mankato Township’s residents live in 7 census tracts; FEMA’s figures are combined by where they live.
In dollars, FEMA expects about $902K a year in losses across Mankato Township: $526K to buildings, the rest to people and crops.
Does Mankato Township flood? Rarely: 5 flood claims since 1979
Every paid claim on a federal flood insurance policy in Mankato Township, from FEMA’s records: 7.3 per 1,000 homes, more than 68% of the 13,809 U.S. towns with a flood insurance record.
- The June Midwest Flooding2 claims · $25K
Mankato 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.7 federal disasters brought FEMA money to Mankato Township
Disasters that paid out in Mankato Township itself (aid to households or repair grants to Mankato Township), newest first, with that year’s flood claims.
- 2024Severe Storms and Flooding$116K to Mankato Township for repairs2 flood claims paid that year
- 2019Severe Winter Storm, Straight-line Winds, and Flooding$123K to Mankato Township for repairs
- 2018Severe Storms, Tornadoes, Straight-line Winds, and Flooding$5K to Mankato Township for repairs
- 2016Severe Storms and Flooding$43K to Mankato Township for repairs
- 2014Severe Storms, Straight-line Winds, Flooding, Landslides, and Mudslides$366K to Mankato Township for repairs1 flood claim paid that year
- 2010Severe Storms and Flooding$16K to Mankato Township for repairs
Show all 7
- 2010Severe Storms, Tornadoes, and Flooding$23K to Mankato Township for repairs
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.
Old photos of Mankato Township after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Mankato Township archive →Mankato Township and its neighbors
Mankato Township is 4th of the 7 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 | B+less damage than 70% | river and rain flooding | 23 |
| Eagle Lake | Bless damage than 63% | river and rain flooding | — |
| North Mankato | Bless damage than 59% | river and rain flooding | 13 |
| 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 | — |
| Decoria Township | C−more damage than 83% | river and rain flooding | 14 |
| Skyline | — | 307 residents; we grade 1,000+ | |
| Lime Township | — | 889 residents; we grade 1,000+ | |
| Le Ray Township | — | 780 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 Mankato 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 Mankato Township
Is Mankato Township at risk for natural disasters?
On FEMA’s National Risk Index, Mankato Township has higher expected damage per building than 53% of U.S. towns: B− for hazard risk. Most of the expected damage is river and rain flooding (68%) and tornadoes (14%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Mankato Township flood?
Flood insurance has paid 5 claims in Mankato Township since 1979, $30K in all, or 7.3 per 1,000 homes, more than 68% of U.S. towns with a flood insurance record. The most claims came from June Midwest Flooding (2).
Is Mankato 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 Mankato Township?
FEMA’s Community Rating System list shows no discount for Mankato Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in Mankato Township?
By FEMA money that reached Mankato Township, Severe Storms, Straight-line Winds, Flooding, Landslides, and Mudslides (2014): $366K to Mankato Township for repairs. By flood claims, June Midwest Flooding: 2 paid, $25K.
Is Mankato Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (68%), and Mankato Township’s rate for it is higher than 58% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Mankato Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Mankato 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.