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Iron County, Missouri

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

Relatively Low overall risk
30th of 115highest risk in Missouri
$23Mexpected losses a year
25federal declarations
1 in 200homes with flood insurance
Photo: U.S. Geological Survey, public domain

Iron County, Missouri has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 70% of US counties. It ranks 30th of 115 counties in Missouri. The costliest hazards here are inland flooding, heat waves and cold waves. FEMA estimates about $23 million a year in expected losses, or roughly $2,399 per resident. Since 1976 it has been included in 25 federal disaster or emergency declarations for natural events (18 major disasters). The most recent was in September 2026 (severe storms, straight-line winds and flooding). Only 37 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $409,000 on 59 claims here.

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

Top risks in Iron County

$8.5 million a yearExpected losses. Damaging events about once 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.

Heat wave

Moderate
$6.4 million a yearExpected losses. Damaging events about 11 times a year.
  • Check that cooling works before summer.
  • Know where the nearest cooling center is.

Cold wave

Moderate
$4.4 million a yearExpected losses. Damaging events about once 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 floodingLow64.5
$8M
Heat waveModerate96.4
$6M
Cold waveModerate86.8
$4M
TornadoLow58.4
$1M
EarthquakeLow78.1
$1M
Strong windModerate56.2
$523K
LightningLow51.5
$199K
HailVery Low28.8
$90K
Winter weatherLow48.9
$50K
WildfireVery Low50.8
$40K
Ice stormLow36.4
$36K
HurricaneVery Low28.6
$10K
LandslideLow75.7
$8K
DroughtVery Low15.7
$704

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 high and community resilience is relatively low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm17
Flood4
Severe Ice Storm2
Drought1
Hurricane1

Most recent

Sep 1, 2026Severe Storms, Straight-Line Winds, and FloodingMajor disaster
May 21, 2025Severe Storms, Straight-Line Winds, Tornadoes, and WildfiresMajor disaster
May 21, 2025Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Sep 21, 2023Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Jan 10, 2022Severe Storms, Straight-Line Winds, and TornadoesMajor disaster
Jun 2, 2017Severe Storms, Tornadoes, Straight-Line Winds and FloodingMajor disaster
Jan 21, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jan 2, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingEmergency
Jul 18, 2013Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
May 9, 2011Severe Storms, Tornadoes, and FloodingMajor disaster
Show all 25
Feb 3, 2011Severe Winter StormEmergency
Jun 19, 2009Severe Storms, Tornadoes, and FloodingMajor disaster
Jan 30, 2009Severe Winter StormEmergency
Mar 19, 2008Severe Storms and FloodingMajor disaster
Dec 12, 2007Severe Winter StormsEmergency
Dec 29, 2006Severe Winter StormsMajor disaster
Jul 21, 2006Severe StormsEmergency
Mar 16, 2006Severe Storms, Tornadoes and FloodingMajor disaster
Sep 10, 2005Hurricane Katrina EvacuationEmergency
May 6, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
May 6, 2002Severe Storms, Tornadoes and FloodingMajor disaster
Apr 20, 1999Severe Storms and FloodingMajor disaster
Dec 1, 1993Severe Storms, Tornadoes, and FloodingMajor disaster
Dec 10, 1982Severe Storms and FloodingMajor disaster
Sep 24, 1976DroughtEmergency

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

Storm history since 1950

Tornado risk by county ›

The National Weather Service has logged 224 storm reports in Iron County since 1950, with 3 deaths and 27 injuries and about $10.6 million in reported damage. The strongest on record here was an F4 tornado on December 21, 1967.

27tornadoes
80hail reports, largest 2.75 inches
89damaging thunderstorm winds
25floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Dec 21, 1967F4–5 / 0
Mar 14, 2025EF3Des Arc2 / 0
Jan 25, 1950F2–5 / 0
Dec 2, 1982F2–0 / 0
Apr 21, 1972F2–4 / 0

Most damaging storms

DateTypeNearDamage
May 12, 2002Flash FloodCountywide$6M
Dec 21, 1967Tornado–$3M
Mar 14, 2025TornadoDes Arc$800K
Jul 9, 2026Flash FloodViburnum$500K
Jan 25, 1950Tornado–$250K
Dec 2, 1982Tornado–$250K

Source: NOAA Storm Events Database, county-based reports through Jul 9, 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.

Hurricanes and tropical storms

Hurricane risk by county ›

Since 1906, 0 hurricanes and 3 tropical storms have passed within 65 miles of the center of Iron County. The strongest was an unnamed storm in 1923, with top winds near 45 mph about 60 miles away.

0hurricanes
0major hurricanes (Category 3+)
3tropical storms
1941most recent: unnamed storm

Strongest storms nearby

DateStormStrengthClosest
Oct 17, 1923UnnamedTropical storm, 45 mph60 mi
Sep 25, 1941UnnamedTropical storm, 40 mph53 mi
Sep 29, 1906UnnamedTropical storm, 40 mph65 mi

Most recent storms

DateStormStrengthClosest
Sep 25, 1941UnnamedTropical storm, 40 mph53 mi
Oct 17, 1923UnnamedTropical storm, 45 mph60 mi
Sep 29, 1906UnnamedTropical storm, 40 mph65 mi

Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.

Flood insurance in Iron County

Check your address flood zone ›
0.5%of homes have federal flood insurance (37 policies)
2.9%of homes in mapped high-risk flood zones are insured
$408,905paid on 59 flood claims since 1978
2002costliest year, with $232,639 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 Iron County

$119,300median home value (Missouri $230,300, US $332,700)
1974median year homes were built (Missouri 1978, US 1980)
62%of homes built before 1980, before many modern wind, quake and flood building rules
11.7%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; 4,682 housing units.

Compare in Missouri

All 115 ›
Largest countiesOverall riskTop hazard
St. Louis CountyHighHeat wave
Jackson CountyHighInland flooding
St. Charles CountyModerateInland flooding
St. Louis CityHighHeat wave
Greene CountyModerateInland flooding
Clay CountyModerateInland flooding
Jefferson CountyModerateInland flooding
Boone CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
St. Francois CountyLow19
Washington CountyLow26
Crawford CountyLow22
Dent CountyLow16
Madison CountyLow24
Wayne CountyLow26
Reynolds CountyLow25

Common questions about Iron County

What is the biggest natural hazard in Iron County?

Inland flooding has the highest expected yearly losses in Iron County, about $8.5 million a year in FEMA's estimate. Heat wave is second at $6.4 million.

How many federal disasters has Iron County had?

Iron County has been included in 25 federal disaster or emergency declarations for natural events since 1976, including 18 major disasters. The most recent was Severe Storms, Straight-Line Winds, and Flooding in September 2026.

Is Iron County a high-risk place to live?

Its overall rating is Relatively Low, 30th highest of 115 in Missouri. 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 Iron County?

Standard home insurance does not cover flooding. About 1 in 200 homes in Iron 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 Iron County had?

NOAA records list 27 tornadoes in Iron County since 1950. The strongest was an F4 tornado on December 21, 1967. The weather service has also logged 80 hail reports and 25 floods here.

How many hurricanes have hit Iron County?

NOAA's hurricane records show 0 hurricanes and 3 tropical storms passing within 65 miles of the center of Iron County. The strongest was an unnamed storm in 1923, with winds near 45 mph.

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.