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Marion County, Tennessee

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

Relatively Low overall risk
45th of 95highest risk in Tennessee
$16Mexpected losses a year
23federal declarations
1 in 143homes with flood insurance
Photo: U.S. Geological Survey, public domain

Marion County, Tennessee has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 58% of US counties. It ranks 45th of 95 counties in Tennessee. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $16 million a year in expected losses, or roughly $572 per resident. Since 1973 it has been included in 23 federal disaster or emergency declarations for natural events (17 major disasters). The most recent was in February 2026 (severe winter storm). Fewer than 1 in 100 homes here carry federal flood insurance (91 policies). Since 1978, federal flood insurance has paid about $1.2 million on 117 claims here, including $408,000 for floods in 2003.

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

Top risks in Marion County

$7.7 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
$3.5 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
$2.6 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 floodingLow61.4
$8M
TornadoModerate81.8
$4M
Cold waveModerate78.1
$3M
Strong windModerate83.3
$1M
EarthquakeLow70.1
$651K
DroughtLow52.3
$140K
LightningLow34.1
$105K
Heat waveVery Low27.5
$95K
Winter weatherModerate63.0
$82K
WildfireVery Low59.7
$67K
HailVery Low20.1
$58K
Ice stormLow44.6
$54K
HurricaneVery Low37.7
$21K
LandslideLow81.0
$15K

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 Marion County. 2020s bar runs to November 2026.

By type

Severe Storm9
Flood6
Tornado2
Fire2
Winter Storm2
Snowstorm1

Most recent

Feb 6, 2026Severe Winter StormMajor disaster
Jan 24, 2026Severe Winter StormEmergency
Apr 2, 2025Severe Storms, Straight-Line Winds, Tornadoes, and FloodingEmergency
May 17, 2023Severe Storms, Straight-Line Winds, and TornadoMajor disaster
May 8, 2021Severe Storms, Tornadoes, and FloodingMajor disaster
Apr 24, 2020Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Apr 17, 2019Severe Storms, Flooding, Landslides, and MudslidesMajor disaster
Aug 13, 2014Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jul 20, 2011Severe Storms, Straight-Line Winds, Tornadoes, AndMajor disaster
May 1, 2011Severe Storms, Tornadoes, Straight-Line Winds, and Associated FloodingMajor disaster
Show all 23
Sep 5, 2005Hurricane Katrina EvacuationEmergency
May 8, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Mar 20, 2003Severe Storms and FloodingMajor disaster
Nov 3, 2001Tn - Chattanooga Fire Complex - 11/03/01Fire management
Apr 13, 1999Tn - Wildfires 4/13/99Fire management
Jan 15, 1999Severe Winter StormMajor disaster
Apr 14, 1994Extensive Rainfall and Flash FloodingMajor disaster
Mar 14, 1993Severe Snowfall, Winter StormEmergency
Jan 4, 1991Severe Storms & FloodingMajor disaster
Feb 27, 1990Severe Storms & FloodingMajor disaster
Aug 24, 1982Severe Storms and FloodingMajor disaster
Apr 4, 1974TornadoesMajor disaster
Mar 21, 1973Heavy Rains & FloodingMajor disaster

Tennessee also had 1 statewide declarations that did not name single counties.

Storm history since 1955

Tornado risk by county ›

The National Weather Service has logged 386 storm reports in Marion County since 1955, with 5 deaths and 25 injuries and about $32.1 million in reported damage. The strongest on record here was an EF2 tornado on November 14, 2007 near Kimball.

21tornadoes
75hail reports, largest 2.75 inches
263damaging thunderstorm winds
26floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Nov 14, 2007EF2Kimball9 / 0
Mar 11, 1963F2–6 / 0
Apr 27, 2011EF2Moore Crossing0 / 0
Nov 29, 2016EF2Morganville0 / 0
Apr 20, 1986F1–6 / 0

Most damaging storms

DateTypeNearDamage
May 5, 2003Flash FloodCountywide$12M
May 8, 2003Flash FloodCountywide$12M
Feb 23, 2019FloodMartin Spgs$4M
Nov 14, 2007TornadoKimball$3M
Dec 25, 2015Flash FloodSouth Pittsburg$280K
Mar 11, 1963Tornado–$250K

Source: NOAA Storm Events Database, county-based reports through Jun 22, 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 1892, 0 hurricanes and 4 tropical storms have passed within 65 miles of the center of Marion County, 3 of them since 1950. The strongest was Tropical Storm Zeta (2020), with top winds near 60 mph about 61 miles away.

0hurricanes
0major hurricanes (Category 3+)
4tropical storms
2020most recent: Zeta

Strongest storms nearby

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 60 mph61 mi
Sep 23, 1975EloiseTropical storm, 50 mph57 mi
Sep 14, 1979FredericTropical storm, 45 mph61 mi
Sep 13, 1892UnnamedTropical storm, 45 mph35 mi

Most recent storms

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 60 mph61 mi
Sep 14, 1979FredericTropical storm, 45 mph61 mi
Sep 23, 1975EloiseTropical storm, 50 mph57 mi
Sep 13, 1892UnnamedTropical storm, 45 mph35 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 Marion County

Check your address flood zone ›
0.7%of homes have federal flood insurance (91 policies)
15.7%of homes in mapped high-risk flood zones are insured
$1.2 millionpaid on 117 flood claims since 1978
2003costliest year, with $408,399 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 Marion County

$195,200median home value (Tennessee $286,700, US $332,700)
1985median year homes were built (Tennessee 1987, US 1980)
41%of homes built before 1980, before many modern wind, quake and flood building rules
19.1%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; 14,058 housing units.

Compare in Tennessee

All 95 ›
Largest countiesOverall riskTop hazard
Shelby CountyHighEarthquake
Davidson CountyHighInland flooding
Knox CountyModerateInland flooding
Hamilton CountyModerateInland flooding
Rutherford CountyModerateInland flooding
Williamson CountyModerateInland flooding
Montgomery CountyModerateInland flooding
Sumner CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Hamilton CountyModerate23
Jackson County, ALLow26
Franklin CountyLow13
Dade County, GAVery Low19
Sequatchie CountyVery Low19
Grundy CountyVery Low20

Common questions about Marion County

What is the biggest natural hazard in Marion County?

Inland flooding has the highest expected yearly losses in Marion County, about $7.7 million a year in FEMA's estimate. Tornado is second at $3.5 million.

How many federal disasters has Marion County had?

Marion County has been included in 23 federal disaster or emergency declarations for natural events since 1973, including 17 major disasters. The most recent was Severe Winter Storm in February 2026.

Is Marion County a high-risk place to live?

Its overall rating is Relatively Low, 45th highest of 95 in Tennessee. 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 Marion County?

Standard home insurance does not cover flooding. About 1 in 143 homes in Marion 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 Marion County had?

NOAA records list 21 tornadoes in Marion County since 1950. The strongest was an EF2 tornado on November 14, 2007 near Kimball. The weather service has also logged 75 hail reports and 26 floods here.

How many hurricanes have hit Marion County?

NOAA's hurricane records show 0 hurricanes and 4 tropical storms passing within 65 miles of the center of Marion County. The strongest was Tropical Storm Zeta (2020), with winds near 60 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.