Falls Church City, Virginia Natural Disaster Risk
FEMA National Risk Index assessment · VA
Very LowComposite Risk Score
National percentile: 2th
Falls Church City faces very low composite natural disaster risk (NRI Risk Index score 1.6, 2th national percentile), driven primarily by hurricane and lightning exposure. Expected annual loss across all 18 hazard types is $3M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
FEMA's National Risk Index rates Falls Church City at very low composite risk, with a National Risk Index score of 1.6 out of 100 — placing it in the 2nd national percentile and among the lowest-risk counties in the country. The score blends Expected Annual Loss, Social Vulnerability, and Community Resilience across all 18 FEMA hazard types.
The county's risk is driven primarily by hurricane (tropical cyclones bringing extreme wind, rain, and storm surge) at Very Low risk — $201K in expected annual loss and about 0.10 events per year; lightning (electrical discharges from storms that ignite fires and cause casualties) at Low risk — $493K in expected annual loss and about 41.46 events per year; and heat wave (prolonged periods of extreme heat that threaten health and infrastructure) at Very Low risk — $273K in expected annual loss and about 6.34 events per year. Across all hazards, FEMA estimates $3M in expected annual loss for a population of 15K.
Beyond physical exposure, Falls Church City has a very low social vulnerability rating (how susceptible the population is to harm) and a very high community resilience rating (its capacity to prepare for and recover from disasters). A less vulnerable population paired with strong resilience helps the community absorb and recover from events.
The federal record bears this out: Falls Church City has received 16 federal disaster declarations since 1972, including 5 for hurricane events and 5 for snowstorm events. The most recent was Severe Winter Storm (winter storm), declared in January 2026.
Among 133 Virginia counties, Falls Church City ranks #132 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Hurricane | Very Low | 0.10 / yr | $201K |
| Lightning | Low | 41.46 / yr | $493K |
| Heat Wave | Very Low | 6.34 / yr | $273K |
| Earthquake | Very Low | 0.00 / yr | $142K |
| Strong Wind | Low | 8.29 / yr | $280K |
| Winter Weather | Very Low | 9.19 / yr | $24K |
| Tornado | Very Low | 0.00 / yr | $201K |
| Ice Storm | Very Low | 0.58 / yr | $10K |
| Hail | Very Low | 4.05 / yr | $45K |
| Riverine Flood | Very Low | 0.36 / yr | $1M |
| Cold Wave | Very Low | 1.27 / yr | $18K |
| Landslide | Very Low | 0.00 / yr | $0 |
| Wildfire | Very Low | 0.00 / yr | $100 |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Drought | Very Low | 2.22 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Falls Church City has received 16 federal disaster declarations since 1972, most recently Severe Winter Storm in January 2026. Most frequent causes: Hurricane (5), Snowstorm (5), Biological (2).
| Declared | Type | Disaster |
|---|---|---|
| January 2026 | Winter Storm | Severe Winter Storm |
| April 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| September 2018 | Hurricane | Hurricane Florence |
| March 2016 | Snowstorm | Severe Winter Storm and Snowstorm |
| November 2012 | Hurricane | Hurricane Sandy |
| October 2012 | Hurricane | Hurricane Sandy |
| July 2012 | Severe Storm | Severe Storms and Straight-Line Winds |
| April 2010 | Snowstorm | Severe Winter Storms and Snowstorms |
| February 2010 | Snowstorm | Severe Winter Storm and Snowstorm |
Showing the 10 most recent of 16 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Falls Church City?
Falls Church City has a composite FEMA National Risk Index score of 1.6 out of 100, placing it in the Very Low category and the 2th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Falls Church City?
The three highest-rated hazards are Hurricane (Very Low, $201K EAL), Lightning (Low, $493K EAL), Heat Wave (Very Low, $273K EAL). These account for most of the county's expected annual losses.
How does Falls Church City compare to other Virginia counties?
Falls Church City ranks #132 of 133 Virginia counties for overall natural disaster risk, with a very low rating.
How many federally declared disasters has Falls Church City had?
FEMA records 16 federal disaster declarations for Falls Church City since 1972, most often 5 for hurricane events and 5 for snowstorm events. The most recent was Severe Winter Storm, declared in January 2026.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Falls Church City's $3M EAL is a statistical average, not a guarantee for any specific year or address.