Home › North Carolina › Union County

Union County, North Carolina

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

Relatively Moderate overall risk
19th of 100highest risk in North Carolina
$110Mexpected losses a year
19federal declarations
1 in 250homes with flood insurance
Photo: U.S. Geological Survey, public domain

Union County, North Carolina has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 89% of US counties. It ranks 19th of 100 counties in North Carolina. The costliest hazards here are inland flooding, tornadoes and earthquakes. FEMA estimates about $110 million a year in expected losses, or roughly $464 per resident. Since 1977 it has been included in 19 federal disaster or emergency declarations for natural events (9 major disasters). The most recent was in January 2026 (severe winter storm). Fewer than 1 in 100 homes here carry federal flood insurance (354 policies). Since 1978, federal flood insurance has paid about $1.7 million on 81 claims here.

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

Top risks in Union County

$73.2 million a yearExpected losses. Damaging events about 2 times 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.
$16.4 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.
$4 million a yearExpected losses. Damaging events about once every 470 years.
  • Ask whether an older house is bolted to its foundation.
  • Consider separate earthquake insurance where risk is high.
HazardRatingScoreExpected loss a year
Inland floodingModerate92.5
$73M
TornadoHigh94.7
$16M
EarthquakeLow85.0
$4M
Cold waveModerate75.0
$4M
HurricaneLow81.4
$3M
Ice stormVery High96.2
$3M
Strong windHigh88.8
$3M
Heat waveLow72.2
$1M
LightningHigh84.7
$1M
HailLow68.1
$726K
DroughtModerate69.4
$713K
Winter weatherModerate73.5
$219K
WildfireVery Low41.6
$41K
LandslideVery Low38.8
$848

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 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 Union County. 2020s bar runs to November 2026.

By type

Hurricane10
Tropical Storm3
Drought1
Tornado1
Snowstorm1
Severe Storm1

Most recent

Jan 24, 2026Severe Winter StormEmergency
Sep 28, 2024Tropical Storm HeleneMajor disaster
Sep 26, 2024Hurricane HeleneEmergency
Aug 6, 2024Tropical Storm DebbyEmergency
Oct 1, 2022Hurricane IanEmergency
Aug 2, 2020Hurricane IsaiasEmergency
Sep 3, 2019Hurricane DorianEmergency
Sep 14, 2018Hurricane FlorenceMajor disaster
Sep 10, 2018Hurricane FlorenceEmergency
Sep 5, 2005Hurricane Katrina EvacuationEmergency
Show all 19
Sep 10, 2004Tropical Storm FrancesMajor disaster
Dec 12, 2002Severe Ice StormMajor disaster
Jan 31, 2000Severe Winter StormMajor disaster
Sep 16, 1999Hurricane Floyd Major Disaster DeclarationsMajor disaster
Sep 15, 1999Hurricane Floyd Emergency DeclarationsEmergency
Jan 13, 1996Blizzard of 96Major disaster
Sep 25, 1989Hurricane HugoMajor disaster
May 17, 1989TornadoesMajor disaster
Aug 11, 1977DroughtEmergency

North Carolina also had 22 statewide declarations that did not name single counties.

Storm history since 1950

Tornado risk by county ›

The National Weather Service has logged 509 storm reports in Union County since 1950, with 4 deaths and 32 injuries and about $32.5 million in reported damage. The strongest on record here was an F4 tornado on May 5, 1989.

22tornadoes
130hail reports, largest 2.25 inches
260damaging thunderstorm winds
73floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 5, 1989F4–6 / 1
Oct 18, 1990F3–2 / 0
Mar 6, 1983F2–9 / 0
Apr 18, 1969F2–0 / 0
Mar 24, 1975F2–1 / 0

Most damaging storms

DateTypeNearDamage
May 5, 1989Tornado–$25M
Mar 6, 1983Tornado–$3M
Jul 19, 1998Thunderstorm WindWaxhaw$600K
Jul 5, 2012Thunderstorm WindMonroe$300K
Apr 18, 1969Tornado–$250K
Mar 24, 1975Tornado–$250K

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 1854, 3 hurricanes and 30 tropical storms have passed within 65 miles of the center of Union County, 10 of them since 1950. The strongest was Hurricane Hugo (1989), with top winds near 85 mph about 50 miles away.

3hurricanes
0major hurricanes (Category 3+)
30tropical storms
2021most recent: Elsa

Strongest storms nearby

DateStormStrengthClosest
Sep 22, 1989HugoCategory 1, 85 mph50 mi
Sep 29, 1896UnnamedCategory 1, 85 mph49 mi
Aug 28, 1893UnnamedCategory 1, 85 mph64 mi
Sep 14, 1904UnnamedTropical storm, 70 mph64 mi
Sep 12, 1878UnnamedTropical storm, 65 mph48 mi
Sep 30, 1959GracieTropical storm, 65 mph61 mi

Most recent storms

DateStormStrengthClosest
Jul 8, 2021ElsaTropical storm, 50 mph59 mi
Jun 21, 2021ClaudetteTropical storm, 45 mph62 mi
Oct 11, 2018MichaelTropical storm, 50 mph44 mi
Sep 22, 1989HugoCategory 1, 85 mph50 mi
Jul 25, 1985BobTropical storm, 55 mph57 mi
Sep 5, 1979DavidTropical storm, 60 mph56 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 Union County

Check your address flood zone ›
0.4%of homes have federal flood insurance (354 policies)
58.7%of homes in mapped high-risk flood zones are insured
$1.7 millionpaid on 81 flood claims since 1978
2018costliest year, with $382,653 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 Union County

$417,300median home value (North Carolina $288,900, US $332,700)
2000median year homes were built (North Carolina 1991, US 1980)
20%of homes built before 1980, before many modern wind, quake and flood building rules
4.5%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; 88,851 housing units.

Compare in North Carolina

All 100 ›
Largest countiesOverall riskTop hazard
Wake CountyHighInland flooding
Mecklenburg CountyHighInland flooding
Guilford CountyModerateInland flooding
Forsyth CountyModerateInland flooding
Cumberland CountyModerateInland flooding
Durham CountyModerateInland flooding
Buncombe CountyModerateInland flooding
Union CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Mecklenburg CountyHigh16
Cabarrus CountyModerate17
Lancaster County, SCLow22
Stanly CountyLow19
Chesterfield County, SCLow24
Anson CountyLow20

Common questions about Union County

What is the biggest natural hazard in Union County?

Inland flooding has the highest expected yearly losses in Union County, about $73.2 million a year in FEMA's estimate. Tornado is second at $16.4 million.

How many federal disasters has Union County had?

Union County has been included in 19 federal disaster or emergency declarations for natural events since 1977, including 9 major disasters. The most recent was Severe Winter Storm in January 2026.

Is Union County a high-risk place to live?

Its overall rating is Relatively Moderate, 19th highest of 100 in North 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 Union County?

Standard home insurance does not cover flooding. About 1 in 250 homes in Union 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 Union County had?

NOAA records list 22 tornadoes in Union County since 1950. The strongest was an F4 tornado on May 5, 1989. The weather service has also logged 130 hail reports and 73 floods here.

How many hurricanes have hit Union County?

NOAA's hurricane records show 3 hurricanes and 30 tropical storms passing within 65 miles of the center of Union County. The strongest was Hurricane Hugo (1989), with winds near 85 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.