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Manassas City, Virginia

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

Very Low overall risk
90th of 133highest risk in Virginia
$7Mexpected losses a year
13federal declarations
1 in 250homes with flood insurance
Photo: U.S. Geological Survey, public domain

Manassas City, Virginia has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 83% of US counties. It ranks 90th of 133 counties in Virginia. The costliest hazards here are inland flooding, heat waves and strong wind. FEMA estimates about $7.5 million a year in expected losses, or roughly $175 per resident. Since 1993 it has been included in 13 federal disaster or emergency declarations for natural events (8 major disasters). The most recent was in January 2026 (severe winter storm). Only 43 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $119,000 on 25 claims here.

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

Top risks in Manassas City

$4.3 million a yearExpected losses. Damaging events about once every 2 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.
$626,230 a yearExpected losses. Damaging events about 6 times a year.
  • Check that cooling works before summer.
  • Know where the nearest cooling center is.
$602,299 a yearExpected losses. Damaging events about 7 times a year.
  • Secure outdoor furniture and trash bins before storms.
  • Have trees near the house checked.
HazardRatingScoreExpected loss a year
Inland floodingVery Low31.7
$4M
Heat waveLow58.2
$626K
Strong windLow47.9
$602K
TornadoLow28.5
$533K
EarthquakeVery Low55.9
$436K
HurricaneLow65.2
$417K
LightningLow54.5
$320K
HailVery Low26.3
$116K
Cold waveVery Low9.8
$84K
Winter weatherLow41.5
$56K
Ice stormVery Low17.2
$14K
WildfireVery Low0.8
$333
LandslideVery Low2.0
$2

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 very low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Manassas City. 2020s bar runs to November 2026.

By type

Snowstorm5
Hurricane5
Severe Storm2
Winter Storm1

Most recent

Jan 23, 2026Severe Winter StormEmergency
Sep 11, 2018Hurricane FlorenceEmergency
Mar 7, 2016Severe Winter Storm and SnowstormMajor disaster
Nov 26, 2012Hurricane SandyMajor disaster
Oct 29, 2012Hurricane SandyEmergency
Apr 27, 2010Severe Winter Storms and SnowstormsMajor disaster
Feb 16, 2010Severe Winter Storm and SnowstormMajor disaster
Sep 12, 2005Hurricane Katrina EvacuationEmergency
Sep 18, 2003Hurricane IsabelMajor disaster
Mar 27, 2003Severe Winter Storm, Record/Near Record Snowfall, Heavy Rain,Floodind, and MudslideMajor disaster
Show all 13
Feb 28, 2000Severe Winter StormsMajor disaster
Jan 13, 1996Blizzard of 96 (Severe Snow Storm)Major disaster
Mar 25, 1993Severe Winter StormEmergency

Virginia also had 6 statewide declarations that did not name single counties.

Storm history since 1998

Tornado risk by county ›

The National Weather Service has logged 79 storm reports in Manassas City since 1998, with 0 deaths and 1 injury and about $2.8 million in reported damage. The strongest on record here was an F1 tornado on September 17, 2004 near Manassas.

1tornadoes
18hail reports, largest 1.75 inches
36damaging thunderstorm winds
16floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Sep 17, 2004F1Manassas0 / 0

Most damaging storms

DateTypeNearDamage
Apr 23, 1999HailManassas$2M
Aug 3, 2002Thunderstorm WindManassas$500K
May 26, 2021Thunderstorm WindManassas$150K
Jun 4, 2008Thunderstorm WindManassas$40K
Aug 9, 2000Thunderstorm WindManassas$30K
Jun 22, 2006Thunderstorm WindManassas$20K

Source: NOAA Storm Events Database, county-based reports through Jul 16, 2025. 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 1876, 2 hurricanes and 13 tropical storms have passed within 65 miles of the center of Manassas City, 5 of them since 1950. The strongest was an unnamed hurricane in 1878, with top winds near 95 mph about 61 miles away.

2hurricanes
0major hurricanes (Category 3+)
13tropical storms
2020most recent: Isaias

Strongest storms nearby

DateStormStrengthClosest
Oct 23, 1878UnnamedCategory 2, 95 mph61 mi
Oct 13, 1893UnnamedCategory 1, 80 mph60 mi
Sep 17, 1876UnnamedTropical storm, 70 mph64 mi
Aug 23, 1933UnnamedTropical storm, 70 mph56 mi
Aug 4, 2020IsaiasTropical storm, 70 mph63 mi
Aug 13, 1955ConnieTropical storm, 65 mph63 mi

Most recent storms

DateStormStrengthClosest
Aug 4, 2020IsaiasTropical storm, 70 mph63 mi
Sep 6, 1979DavidTropical storm, 45 mph63 mi
Aug 18, 1955DianeTropical storm, 50 mph61 mi
Aug 13, 1955ConnieTropical storm, 65 mph63 mi
Sep 1, 1952AbleTropical storm, 60 mph56 mi
Aug 29, 1949UnnamedTropical storm, 60 mph40 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 Manassas City

Check your address flood zone ›
0.4%of homes have federal flood insurance (43 policies)
0%of homes in mapped high-risk flood zones are insured
$119,372paid on 25 flood claims since 1978
2011costliest year, with $46,336 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 Manassas City

$449,900median home value (Virginia $383,700, US $332,700)
1985median year homes were built (Virginia 1984, US 1980)
35%of homes built before 1980, before many modern wind, quake and flood building rules
1.4%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; 14,505 housing units.

Compare in Virginia

All 133 ›
Largest countiesOverall riskTop hazard
Fairfax CountyHighInland flooding
Prince William CountyModerateInland flooding
Virginia Beach CityLowHurricane
Loudoun CountyLowInland flooding
Chesterfield CountyModerateInland flooding
Henrico CountyModerateInland flooding
Chesapeake CityLowInland flooding
Arlington CountyLowInland flooding

Neighboring counties

CountyOverall riskDeclarations
Prince William CountyModerate18
Manassas Park CityVery Low12

Cities in Manassas City

Common questions about Manassas City

What is the biggest natural hazard in Manassas City?

Inland flooding has the highest expected yearly losses in Manassas City, about $4.3 million a year in FEMA's estimate. Heat wave is second at $626,230.

How many federal disasters has Manassas City had?

Manassas City has been included in 13 federal disaster or emergency declarations for natural events since 1993, including 8 major disasters. The most recent was Severe Winter Storm in January 2026.

Is Manassas City a high-risk place to live?

Its overall rating is Very Low, 90th highest of 133 in Virginia. 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 Manassas City?

Standard home insurance does not cover flooding. About 1 in 250 homes in Manassas City 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 Manassas City had?

NOAA records list 1 tornadoes in Manassas City since 1950. The strongest was an F1 tornado on September 17, 2004 near Manassas. The weather service has also logged 18 hail reports and 16 floods here.

How many hurricanes have hit Manassas City?

NOAA's hurricane records show 2 hurricanes and 13 tropical storms passing within 65 miles of the center of Manassas City. The strongest was an unnamed hurricane in 1878, with winds near 95 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 city, not a single property, and are not insurance or safety advice. Report a problem.