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Putnam County, Illinois

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

Very Low overall risk
96th of 102highest risk in Illinois
$5Mexpected losses a year
9federal declarations
1 in 333homes with flood insurance
Photo: U.S. Geological Survey, public domain

Putnam County, Illinois has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 91% of US counties. It ranks 96th of 102 counties in Illinois. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $4.7 million a year in expected losses, or roughly $839 per resident. Since 1979 it has been included in 9 federal disaster or emergency declarations for natural events (5 major disasters). The most recent was in May 2013 (severe storms, straight-line winds and flooding). Only 10 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $1.1 million on 66 claims here, including $641,000 for floods in 2013.

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

Top risks in Putnam County

$2.5 million a yearExpected losses. Damaging events about once every 2 years.
  • 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.
$622,462 a yearExpected losses. Damaging events about once every 6 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.
$482,742 a yearExpected losses. Damaging events about 5 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
HazardRatingScoreExpected loss a year
Inland floodingVery Low19.6
$2M
TornadoLow32.7
$622K
Cold waveLow32.1
$483K
Strong windLow42.8
$463K
DroughtLow62.8
$346K
EarthquakeVery Low39.9
$159K
Heat waveVery Low19.4
$61K
HailVery Low15.3
$54K
LightningVery Low7.2
$24K
Ice stormVery Low20.4
$17K
Winter weatherVery Low12.6
$10K
WildfireVery Low4.4
$1K
HurricaneVery Low8.5
$1K
LandslideVery Low47.4
$1K

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 low 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 Putnam County. 2020s bar runs to November 2026.

By type

Snowstorm4
Flood2
Severe Storm2
Hurricane1

Most recent

May 10, 2013Severe Storms, Straight-Line Winds, and FloodingMajor disaster
Mar 17, 2011Severe Winter Storm and SnowstormMajor disaster
Dec 29, 2006SnowEmergency
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Apr 23, 2004Severe Storms and TornadoesMajor disaster
Jan 8, 1999Il-Winter Storm 1/1/99Emergency
Dec 13, 1982Severe Storms, Tornadoes & FloodingMajor disaster
Apr 30, 1979Severe Storms & FloodingMajor disaster
Jan 16, 1979Blizzards & SnowstormsEmergency

Illinois also had 2 statewide declarations that did not name single counties.

Storm history since 1965

Tornado risk by county ›

The National Weather Service has logged 186 storm reports in Putnam County since 1965, with 0 deaths and 6 injuries and about $14.1 million in reported damage. The strongest on record here was an F3 tornado on July 17, 1972.

12tornadoes
64hail reports, largest 1.75 inches
94damaging thunderstorm winds
14floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jul 17, 1972F3–0 / 0
Apr 20, 2004F2Florid5 / 0
Jun 5, 2010EF2Putnam0 / 0
Nov 12, 1965F2–0 / 0
Sep 12, 1974F2–0 / 0

Most damaging storms

DateTypeNearDamage
Apr 20, 2004TornadoFlorid$8M
Apr 30, 2003Thunderstorm WindPutnam$3M
Apr 30, 2003Thunderstorm WindStandard$1M
Jun 5, 2010TornadoPutnam$1M
Apr 30, 2003Thunderstorm WindPutnam$500K
Nov 12, 1965Tornado–$250K

Source: NOAA Storm Events Database, county-based reports through May 4, 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 Putnam County

Check your address flood zone ›
0.3%of homes have federal flood insurance (10 policies)
13.6%of homes in mapped high-risk flood zones are insured
$1.1 millionpaid on 66 flood claims since 1978
2013costliest year, with $641,107 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 Putnam County

$172,700median home value (Illinois $263,300, US $332,700)
1975median year homes were built (Illinois 1971, US 1980)
58%of homes built before 1980, before many modern wind, quake and flood building rules
2.5%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; 3,090 housing units.

Compare in Illinois

All 102 ›
Largest countiesOverall riskTop hazard
Cook CountyVery HighInland flooding
DuPage CountyHighInland flooding
Lake CountyHighInland flooding
Will CountyHighInland flooding
Kane CountyHighInland flooding
McHenry CountyModerateInland flooding
Winnebago CountyModerateInland flooding
Madison CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
LaSalle CountyModerate18
Bureau CountyLow15
Marshall CountyVery Low12

Common questions about Putnam County

What is the biggest natural hazard in Putnam County?

Inland flooding has the highest expected yearly losses in Putnam County, about $2.5 million a year in FEMA's estimate. Tornado is second at $622,462.

How many federal disasters has Putnam County had?

Putnam County has been included in 9 federal disaster or emergency declarations for natural events since 1979, including 5 major disasters. The most recent was Severe Storms, Straight-Line Winds, and Flooding in May 2013.

Is Putnam County a high-risk place to live?

Its overall rating is Very Low, 96th highest of 102 in Illinois. 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 Putnam County?

Standard home insurance does not cover flooding. About 1 in 333 homes in Putnam 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 Putnam County had?

NOAA records list 12 tornadoes in Putnam County since 1950. The strongest was an F3 tornado on July 17, 1972. The weather service has also logged 64 hail reports and 14 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.