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Errol NHPhoto: P199 · CC BY-SA 3.0
–Not graded
Natural hazards in Errol · FEMA

Storms, floods and disasters in Errol

Errol isn’t graded for hazard risk: Errol has 314 residents; we grade towns of 1,000 or more. Flood insurance has paid 3 claims here since 1998.

Flood claims
3
paid since 1998 · $51K
Flooded more than once
1
properties
Disasters paid out here
0
of 22 declared for Coos County
By hazard

What Errol 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

93%of expected building damage
Well above average · in the top 6% of U.S. census tracts
Recorded about 2 times a year in the area

Hurricanes

5%of expected building damage
Well above average · higher than 82% of U.S. census tracts
Recorded about once every 19 years in the area
Smaller shares here
 Earthquakes Winter storms Ice storms Tornadoes Strong wind Landslides top 3% Lightning Hail Wildfire Cold waves Heat waves
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts avalanches at 73% of Errol’s expected losses. Avalanches 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 Errol flood? Rarely: 3 flood claims since 1998

Every paid claim on a federal flood insurance policy in Errol, from FEMA’s records.

Paid flood claims, by year
1998: 1 claim1999: 0 claims2000: 1 claim2001: 0 claims2002: 0 claims2003: 0 claims2004: 0 claims2005: 0 claims2006: 0 claims2007: 0 claims2008: 0 claims2009: 0 claims2010: 0 claims2011: 0 claims2012: 0 claims2013: 0 claims2014: 1 claim2015: 0 claims2016: 0 claims2017: 0 claims2018: 0 claims2019: 0 claims2020: 0 claims2021: 0 claims2022: 0 claims2023: 0 claims2024: 0 claims2025: 0 claims2026: 0 claims199820002014
19982026
3
paid claims since 1998
$51K
paid to owners
1
homes flooded more than once
$17K
average claim
Homes that flooded again and again
FEMA “severe repetitive loss” (0)Flooded 2+ times
of homes in flood zones are insured
of all homes are insured
No community discount

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

Insurance rates: Coos County.
Disasters

The storms Errol remembers

None of the 22 disasters declared for Coos County shows FEMA aid or repair money reaching Errol itself in FEMA’s records, so these are its biggest flood-claim years.

  1. 19981 flood claims paidThe year of Severe Ice Storm, Rains and High Winds, declared for Coos County
  2. 20001 flood claims paidNo declaration for the county that year
  3. 20141 flood claims paidNo declaration for the county that year
Disasters declared, by decade
Paid out in ErrolCoos County only

Coos County has had 22 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.

Were you here?

Old photos of Errol after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Errol archive →
Next door

Errol and its neighbors

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

Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Upton—91 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 Errol 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 ↗
Hurricane season
  • The season runs June through November and peaks from mid-August to mid-October.
  • Bring in porch furniture and anything the wind can throw.
  • Fill the gas tank and charge phones before the storm arrives.
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 Errol

Does Errol flood?

Flood insurance has paid 3 claims in Errol since 1998, $51K in all. 1 properties have flooded more than once.

Is Errol 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 Coos County, 11% of homes in mapped flood zones carry federal flood insurance, and 0.6% of all homes do.

How much is flood insurance in Errol?

FEMA’s Community Rating System list shows no discount for Errol’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 Errol.

Town Square →
Start the conversation

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