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Franklin County, Pennsylvania

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

Relatively Low overall risk
29th of 67highest risk in Pennsylvania
$38Mexpected losses a year
18federal declarations
1 in 250homes with flood insurance
Photo: U.S. Geological Survey, public domain

Franklin County, Pennsylvania has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 76% of US counties. It ranks 29th of 67 counties in Pennsylvania. The costliest hazards here are inland flooding, hurricanes and strong wind. FEMA estimates about $38 million a year in expected losses, or roughly $242 per resident. Since 1972 it has been included in 18 federal disaster or emergency declarations for natural events (13 major disasters). The most recent was in March 2016 (severe winter storm and snowstorm). Fewer than 1 in 100 homes here carry federal flood insurance (213 policies). Since 1978, federal flood insurance has paid about $1.1 million on 188 claims here, including $554,000 for floods in 2006.

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

Top risks in Franklin County

$26 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.

Hurricane

Moderate
$4.4 million a yearExpected losses. Damaging events about once every 15 years.
  • Know your evacuation zone and route before June 1.
  • Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.

Strong wind

Moderate
$1.6 million a yearExpected losses. Damaging events about 5 times a year.
  • Secure outdoor furniture and trash bins before storms.
  • Have trees near the house checked.
HazardRatingScoreExpected loss a year
Inland floodingModerate84.3
$26M
HurricaneModerate85.6
$4M
Strong windModerate83.1
$2M
EarthquakeLow75.4
$1M
TornadoLow46.2
$1M
Heat waveLow72.1
$1M
DroughtModerate79.2
$928K
HailLow59.7
$398K
LightningModerate60.8
$360K
Cold waveVery Low20.8
$252K
Winter weatherModerate81.5
$237K
WildfireVery Low51.3
$54K
Ice stormLow36.2
$46K
LandslideLow75.4
$10K
AvalancheVery Low48.7
$505

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 high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Flood6
Snowstorm4
Severe Storm4
Hurricane4

Most recent

Mar 23, 2016Severe Winter Storm and SnowstormMajor disaster
Jan 10, 2013Hurricane SandyMajor disaster
Oct 29, 2012Hurricane SandyEmergency
Sep 8, 2011Remnants of Tropical Storm LeeEmergency
Apr 16, 2010Severe Winter Storms and SnowstormsMajor disaster
Jun 30, 2006Severe Storms, Flooding, and MudslidesMajor disaster
Sep 10, 2005Hurricane KatrinaEmergency
Sep 19, 2004Tropical Depression IvanMajor disaster
Sep 19, 2004Severe Storms and Flooding Associated With Tropical Depression FrancesMajor disaster
Mar 14, 2003SnowEmergency
Show all 18
Jun 18, 1996Flooding, Severe StormsMajor disaster
Jan 21, 1996Severe Storms and FloodingMajor disaster
Jan 13, 1996Blizzard of 96Major disaster
Mar 10, 1994Severe Winter StormsMajor disaster
Mar 16, 1993Severe Snowfall & Winter StormEmergency
Oct 20, 1976Severe Storms & FloodingMajor disaster
Sep 26, 1975Severe Storms, Heavy Rains & FloodingMajor disaster
Jun 23, 1972Tropical Storm AgnesMajor disaster

Pennsylvania also had 7 statewide declarations that did not name single counties.

Storm history since 1963

Tornado risk by county ›

The National Weather Service has logged 485 storm reports in Franklin County since 1963, with 0 deaths and 5 injuries and about $3.4 million in reported damage. The strongest on record here was an F2 tornado on April 30, 1994 near Pond Bank.

15tornadoes
87hail reports, largest 2.5 inches
326damaging thunderstorm winds
56floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Apr 30, 1994F2Pond Bank2 / 0
Apr 19, 2019EF2Lemasters0 / 0
Apr 30, 1994F1Greencastle0 / 0
Jul 29, 1974F1–0 / 0
Jun 20, 1989F1–0 / 0

Most damaging storms

DateTypeNearDamage
Jun 18, 1996Flash FloodSt Thomas$1M
Apr 30, 1994TornadoPond Bank$500K
Jan 19, 1996Thunderstorm WindFayetteville$500K
Apr 19, 2019TornadoLemasters$100K
Jul 21, 2020Thunderstorm WindWoodstock$90K
May 27, 2022TornadoGrindstone Hill$70K

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 1876, 2 hurricanes and 12 tropical storms have passed within 65 miles of the center of Franklin County, 4 of them since 1950. The strongest was an unnamed hurricane in 1878, with top winds near 90 mph about 56 miles away.

2hurricanes
0major hurricanes (Category 3+)
12tropical storms
1979most recent: David

Strongest storms nearby

DateStormStrengthClosest
Oct 23, 1878UnnamedCategory 1, 90 mph56 mi
Oct 14, 1893UnnamedCategory 1, 75 mph42 mi
Sep 18, 1876UnnamedTropical storm, 65 mph60 mi
Aug 29, 1893UnnamedTropical storm, 65 mph55 mi
Aug 24, 1933UnnamedTropical storm, 60 mph52 mi
Sep 1, 1952AbleTropical storm, 60 mph44 mi

Most recent storms

DateStormStrengthClosest
Sep 6, 1979DavidTropical storm, 45 mph32 mi
Aug 18, 1955DianeTropical storm, 45 mph59 mi
Aug 13, 1955ConnieTropical storm, 55 mph52 mi
Sep 1, 1952AbleTropical storm, 60 mph44 mi
Aug 29, 1949UnnamedTropical storm, 60 mph41 mi
Oct 1, 1943UnnamedTropical storm, 40 mph57 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 Franklin County

Check your address flood zone ›
0.4%of homes have federal flood insurance (213 policies)
20.1%of homes in mapped high-risk flood zones are insured
$1.1 millionpaid on 188 flood claims since 1978
2006costliest year, with $553,795 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 Franklin County

$249,800median home value (Pennsylvania $254,500, US $332,700)
1978median year homes were built (Pennsylvania 1965, US 1980)
53%of homes built before 1980, before many modern wind, quake and flood building rules
5.7%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; 67,157 housing units.

Compare in Pennsylvania

All 67 ›
Largest countiesOverall riskTop hazard
Philadelphia CountyVery HighInland flooding
Allegheny CountyHighInland flooding
Montgomery CountyHighInland flooding
Bucks CountyHighInland flooding
Delaware CountyModerateInland flooding
Lancaster CountyHighInland flooding
Chester CountyModerateInland flooding
York CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Frederick County, MDLow21
Cumberland CountyModerate17
Washington County, MDLow15
Adams CountyLow18
Perry CountyLow18
Huntingdon CountyLow16
Juniata CountyVery Low18
Fulton CountyVery Low15

Common questions about Franklin County

What is the biggest natural hazard in Franklin County?

Inland flooding has the highest expected yearly losses in Franklin County, about $26 million a year in FEMA's estimate. Hurricane is second at $4.4 million.

How many federal disasters has Franklin County had?

Franklin County has been included in 18 federal disaster or emergency declarations for natural events since 1972, including 13 major disasters. The most recent was Severe Winter Storm and Snowstorm in March 2016.

Is Franklin County a high-risk place to live?

Its overall rating is Relatively Low, 29th highest of 67 in Pennsylvania. 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 Franklin County?

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

NOAA records list 15 tornadoes in Franklin County since 1950. The strongest was an F2 tornado on April 30, 1994 near Pond Bank. The weather service has also logged 87 hail reports and 56 floods here.

How many hurricanes have hit Franklin County?

NOAA's hurricane records show 2 hurricanes and 12 tropical storms passing within 65 miles of the center of Franklin County. The strongest was an unnamed hurricane in 1878, with winds near 90 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.