Baltimore County Disaster Risk
Baltimore County, Maryland
FEMA Risk Rating
Relatively Moderate
National Percentile
94th
of 3,144 counties
State Rank
#2
of 24 (1 = highest risk)
Flood Risk
94th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Moderate
Higher than 94% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 40% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively Low
Higher than 80% of US counties
Earthquake
Seismic activity and ground shaking risk
Moderate
Higher than 92% of US counties
Hurricane
Tropical cyclone and hurricane risk
Moderate
Higher than 93% of US counties
Risk Overview
About Natural Disaster Risk in Baltimore County, Maryland
Baltimore County experiences high disaster exposure
Baltimore County's composite risk score of 93.99 places it in the "Relatively Moderate" category, among the nation's most hazard-prone counties despite not reaching the highest tier. The county's scale and diversity mean some neighborhoods face dramatically higher risks than others.
Second-highest risk in Maryland
Baltimore County's 93.99 score ranks second in Maryland, just below Baltimore City's 95.01 and far exceeding the state average of 60.22. The county's extensive waterfront, dense development corridor, and seismic exposure combine to create statewide leadership in disaster risk.
Baltimore County dominates the urban risk tier
Baltimore County (93.99) faces risks comparable only to Baltimore City (95.01), while Anne Arundel County (81.87) and more distant counties show substantially lower exposure. The Baltimore-Annapolis urban corridor represents Maryland's highest-risk geography.
Floods, earthquakes, and hurricanes lead threats
Baltimore County residents contend with flood risk (93.89), earthquake exposure (92.43), hurricane danger (92.74), and elevated tornado hazard (80.38). The county's Piedmont location and waterfront areas create particular vulnerability to multiple simultaneous hazard types.
Multi-layered insurance protects your investment
Baltimore County homeowners should acquire standalone flood insurance, earthquake coverage, and comprehensive wind protection, then review annually for adequacy. Properties in flood plains or near water require especially careful policy selection and periodic reappraisal.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Baltimore County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Baltimore County
Risk Verdict
Baltimore County's overall risk score at the 94th percentile nationally signals meaningful exposure to multiple natural hazard types. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.
Hazard Breakdown
Flood risk is Baltimore County's dominant natural hazard, ranked at the 94th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 93th percentile nationally. Additional tracked hazards include earthquake (92th percentile), tornado (80th percentile), wildfire (40th percentile).
Preparedness Context
Baltimore County sits at the 94th percentile nationally for flood exposure. Knowing your property's flood zone designation — available at FEMA's Flood Map Service Center — is the first step toward understanding actual exposure and insurance options. Secondary hurricane exposure at the 93th percentile adds a second preparedness layer; households should review coverage options and alert sign-up for both hazard types. Regardless of specific hazard, Baltimore County households benefit from a practiced communication plan: a designated out-of-state contact and a pre-agreed evacuation destination established before the season's peak risk period.
Regional Context
Compared to other Maryland counties, Baltimore County runs 33.8 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.
Is your household prepared for Baltimore County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Baltimore County, MD?
What types of natural hazards affect Baltimore County?
How does Baltimore County risk compare to the Maryland average?
Is Baltimore County at risk for flooding?
How is natural disaster risk measured?
Why is Baltimore County higher risk than average?
Data Source
Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.
Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.