Franklin County, PA

FEMA National Risk Index scores, disaster declarations & hazard data

Population: 155,896 · Cities: Chambersburg , Waynesboro

Relatively Low Riskier than 76% of US counties
Very Low Relatively Low Relatively Moderate Relatively High Very High

Franklin County has experienced 20 federally declared disasters since 1972, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.

Franklin County's highest-rated hazards are hurricane, inland flooding, and strong wind, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. NOAA records 28 storm events in the county over the past decade.

Past disasters & FEMA designations

A federal disaster declaration officially designates a county for FEMA disaster assistance. Franklin County has been designated in 20 declarations since 1972, covering 5 disaster types including flood (6), snowstorm (4), hurricane (4).

2002–2026
Year Type Event name
2020 Biological Covid-19 Pandemic
2020 Biological Covid-19
2016 Snowstorm Severe Winter Storm And Snowstorm
2013 Hurricane Hurricane Sandy
2013 Hurricane Hurricane Sandy
2011 Flood Remnants Of Tropical Storm Lee
2010 Snowstorm Severe Winter Storms And Snowstorms
2006 Severe Storm Severe Storms, Flooding, And Mudslides
2005 Hurricane Hurricane Katrina
2004 Hurricane Tropical Depression Ivan

Showing the 10 most recent of 20 total declarations since 1972.

Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.

Risk by hazard type

Hazard Risk rating Risk score Recorded events Deaths Prop. damage
Wildfire Very Low 51.3 0 0
Inland Flooding Relatively Moderate 84.3 7 0 $10K
Coastal Flooding Not Applicable 0 0
Earthquake Relatively Low 75.4
Heat Wave Relatively Low 72.1 4 0
Tornado Relatively Low 46.2 2 0 $170K
Hurricane Relatively Moderate 85.6 0 0
Hail Relatively Low 59.7 14 0
Strong Wind Relatively Moderate 83.1 0 0
Winter Weather Relatively Moderate 81.5 0 0
Ice Storm Relatively Low 36.2
Cold Wave Very Low 20.8
Lightning Relatively Moderate 60.8 1 0 $10K
Drought Relatively Moderate 79.2 0 0
Landslide Relatively Low 75.4 0 0
Avalanche Very Low 48.7
Tsunami Not Applicable
Volcanic Activity Not Applicable

Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.

Community vulnerability

Franklin County ranks in the 32nd percentile (Low) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.

SVI theme Percentile Vulnerability level
Overall 32nd Low
Socioeconomic status 32nd Low
Household characteristics 56th Moderate
Racial & ethnic minority status 40th Low
Housing type & transportation 24th Very low

Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.

Future risk outlook

Wildfire metric National percentile Level
Burn probability 37th Relatively Low
Risk to homes 38th Relatively Low
Buildings in direct exposure zone 50.6%

NOAA tracked 28 weather events in this county over 2016–2025: 14 in 2016–20 vs 14 in 2021–25 (0% — relatively stable).

Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.

Nearby counties

Compare Franklin County with other counties → All Pennsylvania counties →

Frequently asked questions

What natural hazards pose the greatest risk in Franklin County?

According to the FEMA National Risk Index, the highest-risk hazards in Franklin County, Pennsylvania are hurricane, inland flooding, and strong wind. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.

Has Franklin County received federal disaster declarations?

Yes. Franklin County has received 20 federal disaster declarations since 1972, including declarations in 2020. The most common disaster type on record is flood (6 declarations).

Has Franklin County had any FEMA disaster declarations in 2024, 2025, or 2026?

No federal disaster declarations have been recorded for Franklin County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.

How does Franklin County's natural hazard risk compare to nearby counties?

Among neighboring counties, Cumberland County, PA has the highest overall natural hazard risk (Relatively Moderate) and Fulton County, PA has the lowest (Very Low). Franklin County is rated Relatively Low overall.

How is Franklin County's composite disaster risk index calculated?

Franklin County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Franklin County's composite score of 76 means its overall natural hazard risk is higher than 76% of US counties.

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