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Orrock, MinnesotaPhoto: LittleT889 · CC BY-SA 4.0
DHazard risk
Natural hazards in Orrock Township · FEMA

FEMA expects more hazard damage per building in Orrock Township than in 85% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Orrock Township gets a D for hazard risk: higher expected damage per building than 85% of U.S. towns, #263 of 274 in Minnesota. Most of that expected damage is river and rain flooding (83%). 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

more than 85%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#263 of 274 in Minnesota
By hazard

What Orrock 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

83%of expected building damage
Well above average · in the top 10% of U.S. census tracts
Recorded about once every 5 years in the area

Tornadoes

6%of expected building damage
Above average · higher than 78% of U.S. census tracts

Strong wind

5%of expected building damage
Well above average · in the top 3% of U.S. census tracts
Recorded about 4 times a year in the area
Smaller shares here
 Wildfire Hail Ice storms Lightning Earthquakes Winter storms Cold waves Heat waves Landslides
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamisVolcanic activity

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.
Hazard risk grade

What’s behind Orrock Township’s grade

River and rain flooding is 83% of the building damage FEMA expects in Orrock Township, and Orrock Township’s rate of river and rain flooding damage is in the top 10% of U.S. census tracts. Strong wind adds 5%, at a rate in the top 3% of U.S. census tracts.

Where Orrock Township sits
Orrock Township
Least damageMiddleMost damage

D #263 of 274 in Minnesota; higher expected damage per building than 85% of U.S. towns (21,298).

Orrock Township’s residents live in 4 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding83%Tornadoes6%Strong wind5%Everything else7%

The typical Minnesota town has lower expected damage than 57% of U.S. towns; within the state, Orrock Township has more expected damage per building than 96% of Minnesota towns.

In dollars, FEMA expects about $1.5M a year in losses across Orrock Township: $1.3M to buildings, the rest to people and crops.

A small-area figure. Orrock Township covers 4 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Orrock Township flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Orrock 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

Orrock 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: Sherburne County.
Disasters

The storms Orrock Township remembers

None of the 7 disasters declared for Sherburne County shows FEMA aid or repair money reaching Orrock Township itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in Orrock TownshipSherburne County only

Sherburne County has had 7 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.

Next door

Orrock Township and its neighbors

Orrock Township is 4th of the 4 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Livonia TownshipB−less damage than 54%river and rain flooding—
Big Lake TownshipCmore damage than 68%river and rain flooding—
Blue Hill TownshipC−more damage than 84%river and rain flooding—
Orrock TownshipDmore damage than 85%river and rain flooding0
Becker Township—not graded yet

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 Orrock 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 ↗
High winds
  • Trim dead limbs over the house and driveway.
  • Tie down trash cans and outdoor furniture.
  • Stay clear of downed lines and call the utility.
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 Orrock Township

Is Orrock Township at risk for natural disasters?

On FEMA’s National Risk Index, Orrock Township has higher expected damage per building than 85% of U.S. towns: D for hazard risk, #263 of 274 in Minnesota. Most of the expected damage is river and rain flooding (83%) and tornadoes (6%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Orrock 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 Sherburne County, 31% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in Orrock Township?

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

Is Orrock Township at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (83%), and Orrock Township’s rate for it is in the top 10% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Orrock Township.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Orrock 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.