Home › Missouri › Pettis County

Pettis County, Missouri

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

Relatively Low overall risk
42nd of 115highest risk in Missouri
$23Mexpected losses a year
19federal declarations
1 in 500homes with flood insurance
Photo: U.S. Geological Survey, public domain

Pettis County, Missouri has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 62% of US counties. It ranks 42nd of 115 counties in Missouri. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $23 million a year in expected losses, or roughly $531 per resident. Since 1965 it has been included in 19 federal disaster or emergency declarations for natural events (14 major disasters). The most recent was in August 2015 (severe storms, tornadoes, straight-line winds and flooding). Only 37 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $335,000 on 45 claims here.

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

Top risks in Pettis County

$9.2 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.

Tornado

Moderate
$4.1 million a yearExpected losses. Damaging events about once every 3 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.

Cold wave

Moderate
$3.3 million a yearExpected losses. Damaging events about 2 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 floodingLow60.3
$9M
TornadoModerate80.5
$4M
Cold waveModerate78.2
$3M
Heat waveModerate87.9
$3M
Strong windModerate67.7
$921K
EarthquakeLow69.3
$764K
DroughtModerate75.8
$733K
HailLow70.4
$567K
LightningLow46.3
$209K
Ice stormModerate64.3
$165K
Winter weatherModerate72.6
$148K
WildfireVery Low51.7
$53K
HurricaneVery Low27.9
$12K
LandslideLow62.4
$3K

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 Pettis County. 2020s bar runs to November 2026.

By type

Severe Storm9
Flood3
Severe Ice Storm3
Tornado2
Drought1
Hurricane1

Most recent

Aug 7, 2015Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
May 9, 2011Severe Storms, Tornadoes, and FloodingMajor disaster
Mar 23, 2011Severe Winter Storm and SnowstormMajor disaster
Feb 3, 2011Severe Winter StormEmergency
Jan 30, 2009Severe Winter StormEmergency
Jun 25, 2008Severe Storms and FloodingMajor disaster
Dec 12, 2007Severe Winter StormsEmergency
Apr 5, 2006Severe Storms, Tornadoes, and FloodingMajor disaster
Mar 16, 2006Severe Storms, Tornadoes and FloodingMajor disaster
Sep 10, 2005Hurricane Katrina EvacuationEmergency
Show all 19
May 6, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Feb 6, 2002Severe Winter Ice StormMajor disaster
Jul 9, 1993Severe Storms & FloodingMajor disaster
Oct 14, 1986Severe Storms & FloodingMajor disaster
May 15, 1980Severe Storms & TornadoesMajor disaster
May 7, 1977Tornadoes & FloodingMajor disaster
Sep 24, 1976DroughtEmergency
Apr 19, 1973Heavy Rains, Tornadoes & FloodingMajor disaster
Jul 27, 1965Severe Storms & FloodingMajor disaster

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

Storm history since 1952

Tornado risk by county ›

The National Weather Service has logged 496 storm reports in Pettis County since 1952, with 3 deaths and 101 injuries and about $88.1 million in reported damage. The strongest on record here was an F3 tornado on May 4, 1977.

41tornadoes
201hail reports, largest 3.5 inches
216damaging thunderstorm winds
35floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 4, 1977F3–24 / 0
May 12, 1980F3–23 / 0
Apr 20, 1973F3–0 / 0
Aug 21, 1952F2–13 / 1
Mar 12, 2006F2Green Ridge6 / 1

Most damaging storms

DateTypeNearDamage
Aug 21, 1952Tornado–$25M
May 4, 1977Tornado–$25M
May 12, 1980Tornado–$25M
May 25, 2011TornadoSedalia$4M
Mar 12, 2006TornadoGreen Ridge$3M
Apr 20, 1973Tornado–$3M

Source: NOAA Storm Events Database, county-based reports through Jul 10, 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 Pettis County

Check your address flood zone ›
0.2%of homes have federal flood insurance (37 policies)
0%of homes in mapped high-risk flood zones are insured
$335,444paid on 45 flood claims since 1978
2016costliest year, with $157,202 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 Pettis County

$166,300median home value (Missouri $230,300, US $332,700)
1974median year homes were built (Missouri 1978, US 1980)
59%of homes built before 1980, before many modern wind, quake and flood building rules
5.8%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; 18,673 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
Johnson CountyLow19
Lafayette CountyLow23
Saline CountyLow24
Henry CountyLow18
Morgan CountyLow26
Benton CountyLow19
Cooper CountyVery Low22

Common questions about Pettis County

What is the biggest natural hazard in Pettis County?

Inland flooding has the highest expected yearly losses in Pettis County, about $9.2 million a year in FEMA's estimate. Tornado is second at $4.1 million.

How many federal disasters has Pettis County had?

Pettis County has been included in 19 federal disaster or emergency declarations for natural events since 1965, including 14 major disasters. The most recent was Severe Storms, Tornadoes, Straight-Line Winds, and Flooding in August 2015.

Is Pettis County a high-risk place to live?

Its overall rating is Relatively Low, 42nd 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 Pettis County?

Standard home insurance does not cover flooding. About 1 in 500 homes in Pettis 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 Pettis County had?

NOAA records list 41 tornadoes in Pettis County since 1950. The strongest was an F3 tornado on May 4, 1977. The weather service has also logged 201 hail reports and 35 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.