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McCormick County, South Carolina

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

Very Low overall risk
46th of 46highest risk in South Carolina
$3Mexpected losses a year
19federal declarations
1 in 71homes with flood insurance
Photo: U.S. Geological Survey, public domain

McCormick County, South Carolina has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 90% of US counties. It ranks 46th of 46 counties in South Carolina. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $2.8 million a year in expected losses, or roughly $293 per resident. Since 1977 it has been included in 19 federal disaster or emergency declarations for natural events (6 major disasters). The most recent was in January 2026 (severe winter storm). Only 42 homes here carry federal flood insurance.

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

Top risks in McCormick County

$1.2 million a yearExpected losses. Damaging events about once every 7 years.
  • 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.
$518,896 a yearExpected losses. Damaging events about once every 4 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.
$262,682 a yearExpected losses. Damaging events about once every 5 years.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
HazardRatingScoreExpected loss a year
Inland floodingVery Low16.8
$1M
TornadoLow40.1
$519K
Cold waveLow30.8
$263K
EarthquakeVery Low51.3
$177K
HurricaneLow62.3
$158K
Strong windLow24.6
$139K
Heat waveVery Low34.0
$101K
Ice stormLow59.5
$79K
HailVery Low31.2
$76K
LightningVery Low22.4
$46K
WildfireVery Low34.8
$11K
Winter weatherVery Low3.2
$1K
LandslideVery Low32.5
$226

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

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Hurricane10
Severe Storm2
Severe Ice Storm2
Tropical Storm2
Drought1
Flood1

Most recent

Jan 23, 2026Severe Winter StormEmergency
Sep 29, 2024Hurricane HeleneMajor disaster
Sep 26, 2024Hurricane HeleneEmergency
Aug 5, 2024Hurricane DebbyEmergency
Aug 31, 2023Hurricane IdaliaEmergency
Nov 21, 2022Hurricane IanMajor disaster
Sep 29, 2022Hurricane IanEmergency
Sep 1, 2019Hurricane DorianEmergency
Sep 10, 2018Hurricane FlorenceEmergency
Oct 16, 2017Hurricane IrmaMajor disaster
Show all 19
Sep 7, 2017Hurricane IrmaEmergency
Oct 6, 2016Hurricane MatthewEmergency
Oct 5, 2015Severe Storms and FloodingMajor disaster
Oct 3, 2015Severe Storms and FloodingEmergency
Feb 12, 2014Severe Winter StormEmergency
Sep 10, 2005Hurricane Katrina EvacuationEmergency
Feb 13, 2004Severe Ice StormMajor disaster
Jan 31, 2000Severe Winter StormMajor disaster
Aug 4, 1977DroughtEmergency

South Carolina also had 12 statewide declarations that did not name single counties.

Storm history since 1955

Tornado risk by county ›

The National Weather Service has logged 230 storm reports in McCormick County since 1955, with 0 deaths and 6 injuries and about $1.1 million in reported damage. The strongest on record here was an F3 tornado on November 22, 1992.

16tornadoes
50hail reports, largest 2.75 inches
155damaging thunderstorm winds
7floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Nov 22, 1992F3–0 / 0
Mar 21, 1974F1–1 / 0
Feb 13, 2007EF1Meriwether0 / 0
Mar 28, 2010EF1Woodlawn0 / 0
Jan 6, 1962F1–1 / 0

Most damaging storms

DateTypeNearDamage
Mar 21, 1974Tornado–$250K
Nov 22, 1992Tornado–$250K
Feb 28, 2009LightningMeriwether$200K
May 6, 2003Thunderstorm WindMt Carmel$80K
May 7, 1998HailMc Cormick$60K
May 23, 2010Thunderstorm WindPlum Branch$38K

Source: NOAA Storm Events Database, county-based reports through Jul 12, 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 1851, 0 hurricanes and 18 tropical storms have passed within 65 miles of the center of McCormick County, 4 of them since 1950. The strongest was Tropical Storm Helene (2024), with top winds near 65 mph about 58 miles away.

0hurricanes
0major hurricanes (Category 3+)
18tropical storms
2024most recent: Helene

Strongest storms nearby

DateStormStrengthClosest
Sep 27, 2024HeleneTropical storm, 65 mph58 mi
Aug 28, 1949UnnamedTropical storm, 65 mph53 mi
Aug 24, 1851UnnamedTropical storm, 60 mph59 mi
Oct 11, 2018MichaelTropical storm, 55 mph51 mi
Jul 15, 1916UnnamedTropical storm, 55 mph61 mi
Sep 24, 1889UnnamedTropical storm, 50 mph63 mi

Most recent storms

DateStormStrengthClosest
Sep 27, 2024HeleneTropical storm, 65 mph58 mi
Oct 11, 2018MichaelTropical storm, 55 mph51 mi
Sep 16, 2018FlorenceTropical storm, 45 mph64 mi
Aug 30, 1964CleoTropical storm, 45 mph61 mi
Aug 28, 1949UnnamedTropical storm, 65 mph53 mi
Oct 8, 1946UnnamedTropical storm, 50 mph64 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 McCormick County

Check your address flood zone ›
1.4%of homes have federal flood insurance (42 policies)
91.2%of homes in mapped high-risk flood zones are insured
$88,141paid on 2 flood claims since 1978
2024costliest year, with $88,141 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 McCormick County

$168,700median home value (South Carolina $259,000, US $332,700)
1987median year homes were built (South Carolina 1992, US 1980)
45%of homes built before 1980, before many modern wind, quake and flood building rules
21.6%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; 5,675 housing units.

Compare in South Carolina

All 46 ›
Largest countiesOverall riskTop hazard
Greenville CountyModerateInland flooding
Richland CountyModerateInland flooding
Charleston CountyHighHurricane
Horry CountyHighHurricane
Spartanburg CountyModerateInland flooding
Lexington CountyModerateInland flooding
York CountyModerateInland flooding
Berkeley CountyHighHurricane

Neighboring counties

CountyOverall riskDeclarations
Columbia County, GALow12
Greenwood CountyLow18
Edgefield CountyVery Low20
Abbeville CountyLow19
Elbert County, GAVery Low14
Lincoln County, GAVery Low11

Common questions about McCormick County

What is the biggest natural hazard in McCormick County?

Inland flooding has the highest expected yearly losses in McCormick County, about $1.2 million a year in FEMA's estimate. Tornado is second at $518,896.

How many federal disasters has McCormick County had?

McCormick County has been included in 19 federal disaster or emergency declarations for natural events since 1977, including 6 major disasters. The most recent was Severe Winter Storm in January 2026.

Is McCormick County a high-risk place to live?

Its overall rating is Very Low, 46th highest of 46 in South Carolina. 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 McCormick County?

Standard home insurance does not cover flooding. About 1 in 71 homes in McCormick 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 McCormick County had?

NOAA records list 16 tornadoes in McCormick County since 1950. The strongest was an F3 tornado on November 22, 1992. The weather service has also logged 50 hail reports and 7 floods here.

How many hurricanes have hit McCormick County?

NOAA's hurricane records show 0 hurricanes and 18 tropical storms passing within 65 miles of the center of McCormick County. The strongest was Tropical Storm Helene (2024), with winds near 65 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.