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Natural hazards · Union

Union, ME natural hazards

Most of the natural-hazard damage FEMA expects in Union comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 3 claims here since 1987. 13 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations
Expected damage

How exposed is Union?

38
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Union to be higher than in 38% of U.S. communities, mostly from inland flooding and hurricanes.

Inland flooding35%Hurricanes31%Ice storms8%Strong wind7%Everything else19%
By hazard

What Union faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

35% of expected damage
Well below average · higher than 19% of U.S. places
Recorded about once a year in the area

Hurricanes

31% of expected damage
Well above average · higher than 88% of U.S. places
Recorded about once every 9 years in the area

Ice storms

8% of expected damage
Well above average · higher than 98% of U.S. places
Recorded about once a year in the area

Strong wind

7% of expected damage
Well below average · higher than 15% of U.S. places
Recorded about once a year in the area

Lower here

TornadoesHailWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic activity
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 Union flood?

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

3paid claims since 1987
$15Kpaid to owners
0homes flooded more than once
19872026

Biggest named events

  • April 2007 Nor'easter: 1 claim, $2K
of homes in flood zones
are insured
of all homes
are insured
No community discount. Union isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Knox County.
Disasters that hit Union

13 federal disasters brought FEMA money here

Disasters the President declared that paid out in Union itself: aid to households, or repair grants to the Town of Union.

Brought FEMA money into UnionDeclared for Knox County only
2024

Severe Storms and Flooding

5 households applied for aid $16K aid approved
2023

Severe Storm and Flooding

$79K to the Town of Union for repairs
2021

Severe Storm and Flooding

$5K to the Town of Union for repairs
2017

Severe Storm and Flooding

$14K to the Town of Union for repairs
2013

Severe Winter Storm, Snowstorm, and Flooding

$15K to the Town of Union for repairs
2010

Severe Winter Storm

$7K to the Town of Union for repairs
2009

Severe Storms, Flooding, and Landslides

$60K to the Town of Union for repairs
2008

Severe Winter Storm and Flooding

$25K to the Town of Union for repairs
2008

Severe Storms and Flooding

$119K to the Town of Union for repairs
2007

Severe Storms and Inland and Coastal Flooding

9 households applied for aid $3K aid approved $20K to the Town of Union for repairs
2007

Flooding

$78K to the Town of Union for repairs
2005

Severe Storms, Flooding, Snow Melt, and Ice Jams

$32K to the Town of Union for repairs
2005

Record And/Or Near Record Snow

$12K to the Town of Union for repairs
Knox County has had 26 natural disasters declared since 1953, most often severe storms and floods.
Around Union

Union and the towns around it

Washington: Low, mostly inland floodingWarren: Low, mostly inland floodingAppleton: Low, mostly inland floodingHope: Low, mostly inland floodingWaldoboro: Low, mostly inland floodingSomerville: Moderate, mostly inland floodingPalermo: Moderate, mostly inland floodingLiberty: Moderate, mostly inland floodingJefferson: Moderate, mostly inland floodingThomaston: Low, mostly hurricanesCushing: Low, mostly hurricanesRockport: Low, mostly hurricanesRockland: Very low, mostly hurricanesSearsmont: Moderate, mostly inland floodingLincolnville: Low, mostly hurricanesCamden: Low, mostly inland floodingFriendship: Low, mostly hurricanesNobleboro: Low, mostly inland floodingBremen: Low, mostly inland floodingDamariscotta: Low, mostly inland floodingUnion: Low, mostly inland flooding UnionWashingtonWarrenAppletonHopeWaldoboro
Very lowLowModerateHighVery high
Unionmostly inland floodingLow
Washingtonmostly inland floodingLow
Warrenmostly inland floodingLow
Appletonmostly inland floodingLow
Hopemostly inland floodingLow
Waldoboromostly inland floodingLow
About these numbers

How to read this page

An average, not a forecastFEMA’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 here, so a big city isn’t rated riskier just for having more buildings. Union is smaller than a census tract, so it shares the figures of the tract around its center.
Money that reached townFlood claims are matched to Union’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Union. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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