Walnut Grove’s biggest natural hazard is inland flooding
Most of the natural-hazard damage FEMA expects in Walnut Grove comes from inland flooding, and overall the risk is high for a U.S. community.
What stands out about Walnut Grove’s weather risks
Read from FEMA’s records below. The page puts what stands out first.
Does Walnut Grove flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Walnut Grove. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Walnut Grove isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Redwood County.How exposed is Walnut Grove?
FEMA expects yearly storm and flood damage to homes and buildings here to be higher than in 64% of U.S. communities, mostly from inland flooding and cold waves.
Rated higher than 1,951 of the 2,631 Minnesota towns we cover.
Walnut Grove is smaller than a census tract, so it shares the figures of the tract around its center.
What Walnut Grove faces
Each hazard’s share of the damage FEMA expects here, and how it compares with the rest of the country.
Inland flooding
Cold waves
Drought
Hail
Heat waves
Tornadoes
Federal disasters declared here
None of the disasters declared for Redwood County shows FEMA aid or repair money reaching Walnut Grove itself in FEMA’s records.
Redwood County has had 17 natural disasters declared since 1953, most often floods and severe storms.
Get ready for what Walnut Grove actually faces
A short kit for its top hazards, 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.
- Let faucets drip so pipes don’t freeze.
- Know where your water shutoff is.
- Never heat the house with the oven or a grill.
- On a well? Know how deep it is and watch for sputtering.
- Follow the town’s watering limits.
- Fix drips: they add up.
- 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.
Walnut Grove and its neighbors
Walnut Grove ranks 2nd calmest of 3 towns around it. Tap a town to see its hazards.
| Town | Rating | Mostly | Flood claims |
|---|---|---|---|
| Walnut Grove | High | inland flooding | 0 |
| Springdale | High | inland flooding | 0 |
| North Hero | Low | inland flooding | 0 |
Rating = expected yearly storm and flood damage as a share of what’s there, vs. U.S. communities. Flood claims = paid federal flood insurance claims on record.
Most disasters here begin in April–June
The month each of Redwood County’s 17 declared disasters began, since 1953.
What these numbers can and can’t tell you
- An average, not a forecast. FEMA’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 there, so a big city isn’t rated riskier just for having more buildings.
- Money that reached town. Flood claims are matched to Walnut Grove’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Walnut Grove.
- It follows property value. FEMA’s model weighs damage to buildings, so a place that recently lost many homes can rate lower than it feels.
Storm stories
Memories, warnings and help from neighbors in Walnut Grove.
Your answer becomes a post in Town Square.
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. Preparedness tips: Ready.gov. An average of past damage, not a forecast.