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Natural hazards · Posen

Posen, IL natural hazards

Most of the natural-hazard damage FEMA expects in Posen comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 42 claims here since 1981. 8 federal disasters brought FEMA money into town.

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

How exposed is Posen?

88
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Posen to be higher than in 88% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding66%Cold waves18%Tornadoes10%Heat waves5%Everything else2%
By hazard

What Posen faces

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

Inland flooding

66% of expected damage
Well above average · higher than 97% of U.S. places
Recorded about 6 times a year in the area

Cold waves

18% of expected damage
Well below average · higher than 23% of U.S. places
Recorded about 4 times a year in the area

Tornadoes

10% of expected damage
Well above average · higher than 83% of U.S. places

Heat waves

5% of expected damage
Well above average · higher than 79% of U.S. places
Recorded about 3 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingWildfireDroughtAvalanchesTsunamisVolcanic 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 Posen flood?

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

42paid claims since 1981
$136Kpaid to owners
4homes flooded more than once
19812026

Biggest named events

  • Hurricane Ike: 6 claims, $12K
  • Mid-spring storms: 4 claims, $21K

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. Posen isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Cook County.
Disasters that hit Posen

8 federal disasters brought FEMA money here

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

Brought FEMA money into PosenDeclared for Cook County only
2024

Severe Storms, Tornadoes, Straight-Line Winds, and Floodng

54 households applied for aid $163K aid approved
2023

Severe Storms and Flooding

163 households applied for aid $461K aid approved
2013

Severe Storms, Straight-Line Winds, and Flooding

107 households applied for aid $145K aid approved
2011

Severe Winter Storm and Snowstorm

$29K to the Village of Posen for repairs
2010

Severe Storms and Flooding

73 households applied for aid $140K aid approved
2008

Severe Storms and Flooding

85 households applied for aid $86K aid approved
2000

Illinois Winter Snow Storms

$11K to the Village of Posen for repairs
1999

Il-Winter Storm 1/1/99

$12K to the Village of Posen for repairs
Cook County has had 21 natural disasters declared since 1953, most often floods and severe storms.
Around Posen

Posen and the towns around it

Dixmoor: Very high, mostly inland floodingHarvey: Very high, mostly inland floodingBlue Island: Very high, mostly inland floodingMarkham: High, mostly inland floodingBremen: High, mostly inland floodingThornton: Very high, mostly inland floodingRiverdale: Very high, mostly inland floodingSouth Holland: Very high, mostly inland floodingPhoenix: High, mostly inland floodingDolton: Very high, mostly inland floodingEast Hazel Crest: Moderate, mostly inland floodingHazel Crest: High, mostly inland floodingCalumet Park: Very high, mostly inland floodingAlsip: High, mostly inland floodingRobbins: High, mostly inland floodingCalumet: Very high, mostly inland floodingChicago: Moderate, mostly inland floodingOak Forest: Moderate, mostly inland floodingMidlothian: High, mostly inland floodingCountry Club Hills: High, mostly inland floodingOrland: Moderate, mostly inland floodingRich: Moderate, mostly inland floodingWorth: Very high, mostly inland floodingTinley Park: Moderate, mostly inland floodingBurnham: High, mostly inland floodingBloom: High, mostly inland floodingNorth: Moderate, mostly inland floodingThornton: Low, mostly inland floodingHammond: Low, mostly inland floodingLansing: High, mostly inland floodingMunster: High, mostly inland floodingPosen: Very high, mostly inland flooding PosenDixmoorHarveyBlue IslandMarkhamBremenThornton
Very lowLowModerateHighVery high
Posenmostly inland floodingVery high
Dixmoormostly inland floodingVery high
Blue Islandmostly inland floodingVery high
Harveymostly inland floodingVery high
Thorntonmostly inland floodingVery high
Markhammostly inland floodingHigh
Bremenmostly inland floodingHigh
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. Posen covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Posen’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Posen. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Posen total about $5.6M a year, counting buildings, people and crops.

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/18 · 2025-01-01
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