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Audrain County, Missouri

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

Relatively Low overall risk
61st of 115highest risk in Missouri
$13Mexpected losses a year
17federal declarations
1 in 333homes with flood insurance
Photo: U.S. Geological Survey, public domain

Audrain County, Missouri has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 51% of US counties. It ranks 61st of 115 counties in Missouri. The costliest hazards here are inland flooding, heat waves and cold waves. FEMA estimates about $13 million a year in expected losses, or roughly $531 per resident. Since 1974 it has been included in 17 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in September 2021 (severe storms, straight-line winds, tornadoes and flooding). Only 32 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $656,000 on 60 claims here.

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

Top risks in Audrain County

$6.1 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
$1.7 million a yearExpected losses. Damaging events about 11 times a year.
  • Check that cooling works before summer.
  • Know where the nearest cooling center is.
$1.3 million a yearExpected losses. Damaging events about 3 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 floodingLow55.3
$6M
Heat waveModerate85.5
$2M
Cold waveLow64.3
$1M
TornadoLow55.8
$1M
EarthquakeLow77.2
$1M
DroughtModerate76.3
$584K
Strong windModerate56.8
$522K
HailLow66.2
$376K
LightningModerate59.1
$252K
Winter weatherModerate65.1
$85K
Ice stormLow50.5
$69K
WildfireVery Low41.8
$23K
HurricaneVery Low23.2
$6K
LandslideVery Low42.2
$607

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 high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm8
Severe Ice Storm4
Flood3
Drought1
Hurricane1

Most recent

Sep 1, 2021Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Jan 2, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingEmergency
Aug 7, 2015Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Mar 23, 2011Severe Winter Storm and SnowstormMajor disaster
Feb 3, 2011Severe Winter StormEmergency
Jan 30, 2009Severe Winter StormEmergency
Nov 13, 2008Severe Storms, Flooding, and A TornadoMajor disaster
Jun 25, 2008Severe Storms and FloodingMajor disaster
Mar 19, 2008Severe Storms and FloodingMajor disaster
Dec 27, 2007Severe Winter StormsMajor disaster
Show all 17
Dec 12, 2007Severe Winter StormsEmergency
Sep 10, 2005Hurricane Katrina EvacuationEmergency
May 6, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Feb 6, 2002Severe Winter Ice StormMajor disaster
Jul 9, 1993Severe Storms & FloodingMajor disaster
Sep 24, 1976DroughtEmergency
Jun 10, 1974Severe Storms & FloodingMajor disaster

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

Storm history since 1954

Tornado risk by county ›

The National Weather Service has logged 347 storm reports in Audrain County since 1954, with 1 death and 1 injury and about $6 million in reported damage. The strongest on record here was an F3 tornado on June 12, 1970.

26tornadoes
123hail reports, largest 3 inches
155damaging thunderstorm winds
39floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 12, 1970F3–0 / 0
Sep 22, 1993F2Martinsburg To0 / 0
Dec 8, 1966F2–0 / 0
Jun 8, 1984F1–0 / 0
Apr 20, 2025EF1Worchester0 / 0

Most damaging storms

DateTypeNearDamage
Sep 22, 1993TornadoMartinsburg To$5M
Jun 12, 1970Tornado–$250K
Jun 8, 1984Tornado–$250K
Apr 20, 2025TornadoWorchester$60K
Jul 21, 2025Flash FloodCarroll$60K
Jun 25, 2024Thunderstorm WindVandalia$50K

Source: NOAA Storm Events Database, county-based reports through May 18, 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 Audrain County

Check your address flood zone ›
0.3%of homes have federal flood insurance (32 policies)
19.1%of homes in mapped high-risk flood zones are insured
$655,709paid on 60 flood claims since 1978
2025costliest year, with $503,661 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 Audrain County

$143,100median home value (Missouri $230,300, US $332,700)
1970median year homes were built (Missouri 1978, US 1980)
65%of homes built before 1980, before many modern wind, quake and flood building rules
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; 10,561 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
Boone CountyModerate25
Callaway CountyLow27
Randolph CountyVery Low16
Pike CountyVery Low24
Montgomery CountyVery Low24
Ralls CountyVery Low24
Monroe CountyVery Low17

Common questions about Audrain County

What is the biggest natural hazard in Audrain County?

Inland flooding has the highest expected yearly losses in Audrain County, about $6.1 million a year in FEMA's estimate. Heat wave is second at $1.7 million.

How many federal disasters has Audrain County had?

Audrain County has been included in 17 federal disaster or emergency declarations for natural events since 1974, including 11 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in September 2021.

Is Audrain County a high-risk place to live?

Its overall rating is Relatively Low, 61st 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 Audrain County?

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

NOAA records list 26 tornadoes in Audrain County since 1950. The strongest was an F3 tornado on June 12, 1970. The weather service has also logged 123 hail reports and 39 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.