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Blount County, Tennessee

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

Relatively Low overall risk
19th of 95highest risk in Tennessee
$37Mexpected losses a year
16federal declarations
1 in 200homes with flood insurance
Photo: U.S. Geological Survey, public domain

Blount County, Tennessee has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 74% of US counties. It ranks 19th of 95 counties in Tennessee. The costliest hazards here are inland flooding, earthquakes and cold waves. FEMA estimates about $37 million a year in expected losses, or roughly $271 per resident. Since 1973 it has been included in 16 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in February 2026 (severe winter storm). Fewer than 1 in 100 homes here carry federal flood insurance (251 policies). Since 1978, federal flood insurance has paid about $1.3 million on 60 claims here, including $782,000 for floods in 2002.

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

Top risks in Blount County

$17.4 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.

Earthquake

Moderate
$10 million a yearExpected losses. Damaging events about once every 195 years.
  • Ask whether an older house is bolted to its foundation.
  • Consider separate earthquake insurance where risk is high.

Cold wave

Moderate
$2.8 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 floodingModerate74.0
$17M
EarthquakeModerate93.1
$10M
Cold waveModerate73.5
$3M
TornadoModerate67.4
$3M
LightningHigh90.1
$1M
Strong windModerate65.1
$937K
Ice stormModerate74.3
$311K
Heat waveLow42.3
$286K
LandslideModerate96.4
$227K
HailLow39.9
$198K
WildfireLow69.4
$189K
Winter weatherModerate70.8
$150K
HurricaneVery Low55.6
$143K
DroughtLow34.1
$42K

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 moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm6
Flood3
Winter Storm2
Tornado1
Snowstorm1
Hurricane1

Most recent

Feb 6, 2026Severe Winter StormMajor disaster
Jan 24, 2026Severe Winter StormEmergency
Apr 2, 2025Severe Storms, Straight-Line Winds, Tornadoes, and FloodingEmergency
Apr 17, 2019Severe Storms, Flooding, Landslides, and MudslidesMajor disaster
Jun 23, 2017Severe Storms, Straight-Line Winds, and FloodingMajor disaster
Nov 19, 2016East Miller Cove FireFire management
Apr 2, 2015Severe Winter Storm and FloodingMajor disaster
May 1, 2011Severe Storms, Tornadoes, Straight-Line Winds, and Associated FloodingMajor disaster
Sep 5, 2005Hurricane Katrina EvacuationEmergency
May 8, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Show all 16
Apr 5, 2002Severe Storms and FloodingMajor disaster
Apr 20, 1998Severe Storms, Tornadoes and FloodingMajor disaster
Apr 14, 1994Extensive Rainfall and Flash FloodingMajor disaster
Mar 14, 1993Severe Snowfall, Winter StormEmergency
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 535 storm reports in Blount County since 1955, with 1 death and 15 injuries and about $20.6 million in reported damage. The strongest on record here was an EF4 tornado on April 27, 2011 near Chilhowee.

16tornadoes
108hail reports, largest 2 inches
371damaging thunderstorm winds
38floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Apr 27, 2011EF4Chilhowee0 / 0
Mar 23, 2011EF3Kiser2 / 0
Feb 21, 1993F2Maryville0 / 0
Apr 3, 1974F2–2 / 0
Apr 25, 2010EF2Lanier0 / 0

Most damaging storms

DateTypeNearDamage
May 23, 1999LightningMaryville$6M
May 5, 2003Flash FloodCountywide$4M
Feb 23, 2019FloodLanier$3M
Mar 23, 2011TornadoKiser$3M
Aug 1, 1995Thunderstorm WindAlcoa$1M
Apr 27, 2011TornadoChilhowee$1M

Source: NOAA Storm Events Database, county-based reports through Jul 28, 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 1916, 0 hurricanes and 4 tropical storms have passed within 65 miles of the center of Blount County, 3 of them since 1950. The strongest was Tropical Storm Zeta (2020), with top winds near 55 mph about 59 miles away.

0hurricanes
0major hurricanes (Category 3+)
4tropical storms
2024most recent: Helene

Strongest storms nearby

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 55 mph59 mi
Sep 27, 2024HeleneTropical storm, 50 mph35 mi
Sep 23, 1975EloiseTropical storm, 45 mph61 mi
Jul 15, 1916UnnamedTropical storm, 40 mph65 mi

Most recent storms

DateStormStrengthClosest
Sep 27, 2024HeleneTropical storm, 50 mph35 mi
Oct 29, 2020ZetaTropical storm, 55 mph59 mi
Sep 23, 1975EloiseTropical storm, 45 mph61 mi
Jul 15, 1916UnnamedTropical 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 Blount County

Check your address flood zone ›
0.5%of homes have federal flood insurance (251 policies)
23%of homes in mapped high-risk flood zones are insured
$1.3 millionpaid on 60 flood claims since 1978
2002costliest year, with $781,656 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 Blount County

$320,500median home value (Tennessee $286,700, US $332,700)
1990median year homes were built (Tennessee 1987, US 1980)
38%of homes built before 1980, before many modern wind, quake and flood building rules
10.4%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; 61,850 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
Knox CountyModerate17
Sevier CountyLow21
Loudon CountyLow18
Monroe CountyLow16
Swain County, NCLow15
Graham County, NCVery Low15

Cities in Blount County

Common questions about Blount County

What is the biggest natural hazard in Blount County?

Inland flooding has the highest expected yearly losses in Blount County, about $17.4 million a year in FEMA's estimate. Earthquake is second at $10 million.

How many federal disasters has Blount County had?

Blount County has been included in 16 federal disaster or emergency declarations for natural events since 1973, including 11 major disasters. The most recent was Severe Winter Storm in February 2026.

Is Blount County a high-risk place to live?

Its overall rating is Relatively Low, 19th 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 Blount County?

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

NOAA records list 16 tornadoes in Blount County since 1950. The strongest was an EF4 tornado on April 27, 2011 near Chilhowee. The weather service has also logged 108 hail reports and 38 floods here.

How many hurricanes have hit Blount County?

NOAA's hurricane records show 0 hurricanes and 4 tropical storms passing within 65 miles of the center of Blount County. The strongest was Tropical Storm Zeta (2020), with winds near 55 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.