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Lake County, Indiana

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively High overall risk
2nd of 92highest risk in Indiana
$191Mexpected losses a year
22federal declarations
1 in 200homes with flood insurance
Photo: U.S. Geological Survey, public domain

Lake County, Indiana has a relatively high overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 96% of US counties. It ranks 2nd of 92 counties in Indiana. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $191 million a year in expected losses, or roughly $383 per resident. Since 1977 it has been included in 22 federal disaster or emergency declarations for natural events (15 major disasters). The most recent was in August 2026 (severe storms, straight-line winds, tornadoes and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (857 policies). Since 1978, federal flood insurance has paid about $49 million on 3,013 claims here, including $33 million for floods in 2008.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Lake County

$89.8 million a yearExpected losses. Damaging events about 2 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Cold wave

Very High
$46.9 million a yearExpected losses. Damaging events about 4 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.

Tornado

Very High
$40.9 million a yearExpected losses. Damaging events about once every 2 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.
HazardRatingScoreExpected loss a year
Inland floodingHigh96.2
$90M
Cold waveVery High99.4
$47M
TornadoVery High99.1
$41M
EarthquakeLow89.1
$4M
Heat waveModerate92.8
$4M
Strong windHigh92.8
$2M
LightningHigh92.6
$1M
Winter weatherHigh94.3
$576K
HailLow71.4
$560K
Ice stormModerate76.6
$299K
WildfireLow66.1
$120K
Coastal floodingVery Low41.2
$20K
HurricaneVery Low18.6
$5K
LandslideVery Low54.7
$2K

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively moderate and community resilience is relatively high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Lake County. 2020s bar runs to November 2026.

By type

Severe Storm11
Flood5
Snowstorm4
Hurricane1
Winter Storm1

Most recent

Aug 25, 2026Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Aug 15, 2026Severe Storms, Straight-Line Winds, Tornadoes, and FloodingEmergency
Jan 24, 2026Severe Winter StormEmergency
Apr 15, 2023Severe Storms, Straight-Line Winds, and TornadoesMajor disaster
May 4, 2018Severe Storms and FloodingMajor disaster
Apr 22, 2014Severe Winter Storm and SnowstormMajor disaster
Apr 22, 2009Severe Storms, Tornadoes, and FloodingMajor disaster
Sep 23, 2008Severe Storms and FloodingMajor disaster
Jan 30, 2008Severe Storms and FloodingMajor disaster
Nov 30, 2007Severe Storms and FloodingMajor disaster
Show all 22
Mar 12, 2007SnowEmergency
Oct 6, 2006Severe Storms and FloodingMajor disaster
Sep 10, 2005Hurricane Katrina EvacuationEmergency
Jan 21, 2005Severe Winter Storms and FloodingMajor disaster
Jun 3, 2004Severe Storms, Tornadoes, and FloodingMajor disaster
Jul 11, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Jan 24, 2001SnowEmergency
Jan 15, 1999In-Winter Storm 12/23/98Emergency
May 8, 1998Severe Winter StormMajor disaster
Jan 5, 1991Severe Storms & FloodingMajor disaster
Dec 6, 1990Severe Storms & FloodingMajor disaster
Feb 2, 1977SnowstormsEmergency

Indiana also had 5 statewide declarations that did not name single counties.

Storm history since 1951

Tornado risk by county ›

The National Weather Service has logged 696 storm reports in Lake County since 1951, with 5 deaths and 38 injuries and about $65.7 million in reported damage. The strongest on record here was an F3 tornado on November 12, 1965.

54tornadoes
146hail reports, largest 2.75 inches
375damaging thunderstorm winds
96floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Nov 12, 1965F3–14 / 0
Jun 20, 1974F3–5 / 0
Apr 23, 1961F3–0 / 0
Jun 11, 2026EF3Range Line0 / 0
Jun 30, 1977F2–1 / 0

Most damaging storms

DateTypeNearDamage
Sep 14, 2008FloodMunster$15M
Sep 14, 2008Flash FloodIllinoi$10M
Sep 17, 2023Flash FloodWhiting$10M
Sep 13, 2006Flash FloodNorthwest Portion$8M
Aug 24, 2007FloodDyer$4M
Aug 18, 2025Flash FloodWhiting$4M

Source: NOAA Storm Events Database, county-based reports through Jul 27, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Lake County

Check your address flood zone ›
0.5%of homes have federal flood insurance (857 policies)
26.2%of homes in mapped high-risk flood zones are insured
$49.4 millionpaid on 3,013 flood claims since 1978
2008costliest year, with $33.1 million paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Lake County

$230,600median home value (Indiana $218,200, US $332,700)
1968median year homes were built (Indiana 1976, US 1980)
66%of homes built before 1980, before many modern wind, quake and flood building rules
1.5%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 217,436 housing units.

Compare in Indiana

All 92 ›
Largest countiesOverall riskTop hazard
Marion CountyHighInland flooding
Lake CountyHighInland flooding
Allen CountyModerateInland flooding
Hamilton CountyModerateInland flooding
St. Joseph CountyModerateInland flooding
Elkhart CountyModerateInland flooding
Tippecanoe CountyModerateInland flooding
Vanderburgh CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Cook County, ILVery High22
Will County, ILHigh17
Porter CountyModerate14
Kankakee County, ILModerate5
Jasper CountyVery Low17
Newton CountyVery Low17

Common questions about Lake County

What is the biggest natural hazard in Lake County?

Inland flooding has the highest expected yearly losses in Lake County, about $89.8 million a year in FEMA's estimate. Cold wave is second at $46.9 million.

How many federal disasters has Lake County had?

Lake County has been included in 22 federal disaster or emergency declarations for natural events since 1977, including 15 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in August 2026.

Is Lake County a high-risk place to live?

Its overall rating is Relatively High, 2nd highest of 92 in Indiana. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Lake County?

Standard home insurance does not cover flooding. About 1 in 200 homes in Lake County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Lake County had?

NOAA records list 54 tornadoes in Lake County since 1950. The strongest was an F3 tornado on November 12, 1965. The weather service has also logged 146 hail reports and 96 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.