Maryland Flood Zone Map
Last updated: August 2026
Maryland faces coastal flooding along the Chesapeake Bay and Atlantic Ocean shorelines, riverine flooding from the Potomac and Susquehanna rivers, and urban flash flooding in the Baltimore metropolitan area. Sea level rise is accelerating tidal flooding in Bay communities.
4 of 24 Maryland counties are rated high or very high for inland flood risk by FEMA's National Risk Index. 19 communities participate in FEMA's Community Rating System, qualifying residents for flood insurance discounts of up to 25%.
Maryland has recorded 25,366 NFIP flood insurance claims since 1978, totaling $325.4M in payouts. See how Maryland compares in our nationwide NFIP claims data breakdown.
FEMA Region
Region 3
Also covers Delaware, District of Columbia, Pennsylvania, +2 more
NFIP Policies
73,709
Policies effective in the trailing 13 months (July 1, 2025 - August 16, 2026), not a certified point-in-time count
MD Avg. Premium
$463/yr
National average: $915/yr
NFIP Flood Insurance Claims
Maryland properties have filed 25,366 NFIP flood insurance claims totaling $325.4M in payouts since 1978. The average claim payout in 2025 was $21,978.
Recent Years
Claims by Decade
Highest-Claim Years
Claims by Flood Zone
Source: OpenFEMA NFIP Claims API. Data sourced August 2026. See national claims data.
Flood Insurance Coverage in Maryland
Only roughly 1 in 33 households in Maryland carries NFIP flood insurance (3% of estimated households). 21 of 24 counties have elevated flood risk but low insurance coverage. With 3,106 recorded flood events and $177.9M in damage, many flood losses in this state are likely uninsured.
Penetration Rate
3%
roughly 1 in 33 households
Historical Claims Ratio
1 in 3
25,366 claims over 45+ years across 73,709 current policies
Avg. Claim Payout
$12,830
Per claim, state-wide since 1978
Historically, Maryland has averaged 1 claim for every 3 active policies (since 1978). This compares cumulative claims against today's policy count and does not predict future claim likelihood.
Coverage data: NFIP policies as of August 2026, claims since 1978 (August 2026), population from FEMA NRI.
Repetitive Loss Properties in Maryland
Maryland has 1,357 properties with multiple flood insurance losses, including 137 severe repetitive loss properties. 66 properties have received FEMA mitigation funding. Severe repetitive loss is a subset of multiple loss, not a separate count. Data sourced August 2026.
Multiple Loss
1,357
2+ claims within 10 years
Severe Repetitive Loss
137
4+ claims or 2 exceeding value
Mitigated
66
Received FEMA mitigation
By Flood Zone
Zone data available for 1,339 of 1,357 properties.
Source: OpenFEMA NFIP Multiple Loss Properties. Data sourced August 2026.
Flood Insurance Discounts in Maryland
19 Maryland communities participate in FEMA's Community Rating System (CRS), earning flood insurance premium discounts for residents in Special Flood Hazard Areas. CRS classes in Maryland range from 5 to 7, with discounts from 15% to 25%.
Class 5 - 25% discount
Carroll County
Class 5 - 25% discount
Howard County
Class 5 - 25% discount
Prince Georges County
Class 5 - 25% discount
Class 6 - 20% discount
Class 6 - 20% discount
Class 6 - 20% discount
Cecil County
Class 6 - 20% discount
Dorchester County
Class 6 - 20% discount
Class 7 - 15% discount
Class 7 - 15% discount
Class 7 - 15% discount
Source: FEMA Community Rating System, April 2026. Discounts apply to NFIP policies only. CRS classes and discounts are subject to change.
Federal Flood Disaster History
Maryland has received 19 federal disaster declarations for flooding, hurricanes, severe storms, and coastal storms.
Declarations by Decade
Recent Declarations
Showing 8 most recent of 19 total declarations.
Source: OpenFEMA Disaster Declarations Summaries API. Data sourced August 2026.
Recorded Flood Events in Maryland
NOAA has recorded 3,106 flood events in Maryland since 1996, causing an estimated $177.9M in property and crop damage and 24 deaths.
Total Events
3,106
Total Damage
$177.9M
Fatalities
24
Events by Decade
Costliest Events
Source: NOAA Storm Events Database, 1996-2026. Data sourced August 2026.
Flood Mitigation in Maryland
FEMA has funded mitigation for 609 properties in Maryland, investing $35.4M in flood risk reduction. Common mitigation actions include acquisition (buying and demolishing flood-prone structures), elevation (raising buildings above flood level), and safe rooms (wind/storm shelters for tornado and hurricane protection).
Properties by Action
Mitigation by Decade
Source: OpenFEMA Hazard Mitigation Assistance Mitigated Properties. Data sourced August 2026. FEMA records a total payment per grant rather than per property, so the dollar figure is an estimate that splits each grant across the properties it covers; the property count is exact.
Levee Protection in Maryland
The USACE National Levee Database lists 2 levee systems protecting parts of 2 Maryland cities. A system's FEMA accreditation status determines how its protected area is mapped - accredited levees are typically mapped as Zone X, while non-accredited or provisionally accredited (PAL) systems generally leave their protected area in the SFHA.
Largest Protected Areas
Atlantic Coast of Maryland Shoreline Protection
Non-AccreditedProtects: Ocean City - Flood source: Atlantic Ocean - 0.89 sq mi
Carroll Parkway Levee System
Non-AccreditedProtects: Frederick - Flood source: Carroll Creek - 0 sq mi
Source: USACE National Levee Database. Data sourced August 2026. Learn how levees affect flood zone mapping.
Maryland Flood Risk Overview
County-level risk ratings from FEMA's National Risk Index across 24 Maryland counties.
Inland Flood Risk
4 of 24 counties rated high or very high
Coastal Flood Risk
3 of 19 coastal counties rated high or very high
Hurricane Risk
0 of 24 counties rated high or very high
Source: FEMA National Risk Index, county-level assessment.
Maryland Cities
Explore flood zone information for major cities in Maryland.
Maryland Flood Zone FAQ
How do I check if my Maryland property is in a flood zone?
Enter your MD address in FludZone's free lookup tool. We query FEMA's National Flood Hazard Layer in real-time to show your flood zone designation, whether flood insurance is required, and your property's risk level.
Do I need flood insurance in Maryland?
If your Maryland property is in a Special Flood Hazard Area (SFHA), meaning zones starting with A or V, and you have a federally regulated or government-backed mortgage, federal law generally requires your lender to ensure you carry flood insurance. Properties in Zone X are not subject to the federal mandate but lenders may still require coverage, and it is often recommended given Maryland's flood history.
What are the most common flood zones in Maryland?
The most common FEMA flood zone designations in Maryland are Zone AE, Zone VE, Zone A, Zone AO, Zone X. Each zone reflects a different level of flood risk, from high-risk areas where flood insurance is generally required for federally regulated or government-backed mortgages to lower-risk areas where coverage is optional but recommended.
Can I remove my Maryland property from a flood zone?
Yes, if your Maryland property's natural ground elevation was always above the Base Flood Elevation and FEMA inadvertently mapped it in the SFHA, you can apply for a Letter of Map Amendment (LOMA) through FEMA. If your property was raised above the BFE with fill, the process is a LOMR-F. Note that for coastal properties in VE zones, LOMAs are less common because wave action creates risks beyond still-water elevation. A successful LOMA generally removes the federal mandatory flood insurance requirement, but your lender may still choose to require coverage. You'll need an elevation certificate from a licensed surveyor.
Do any Maryland communities offer flood insurance discounts?
Yes, 19 Maryland communities participate in FEMA's Community Rating System (CRS), a voluntary program that rewards communities for exceeding minimum flood mitigation standards. Residents in participating communities can receive NFIP premium discounts of up to 25% in the Special Flood Hazard Area. Properties outside the SFHA also benefit: CRS classes 1 through 6 receive a 10% discount, and classes 7 through 9 receive a 5% discount on NFIP premiums. Check your city's page on FludZone to see if your community participates.
How much does flood insurance cost in Maryland?
The average NFIP flood insurance premium in Maryland is $463 per year across 73,709 active policies. Premiums vary by zone: Zone X policies average $336/yr. Under FEMA's Risk Rating 2.0, your specific premium depends on property type, elevation relative to the Base Flood Elevation, and distance to water, not just your flood zone designation.
Which Maryland counties have the highest flood risk?
According to FEMA's National Risk Index, Montgomery, Baltimore, Prince George's are among Maryland's highest-risk counties for inland flooding. Overall, 4 of 24 Maryland counties are rated "High" or "Very High" for inland flood risk. County-level ratings account for historical flood losses, social vulnerability, and community resilience.
How many NFIP flood insurance claims has Maryland had?
Maryland has recorded 25,366 NFIP flood insurance claims totaling $325.4M in payouts since 1978. The highest-claim year was 2003, with 6,581 claims and $161.4M in payouts. This history reflects cumulative flood damage to Maryland properties across decades of storm and rainfall events.
How many Maryland properties have flooded repeatedly?
Maryland has 1,357 properties with multiple flood losses. Of these, 137 are classified as Severe Repetitive Loss, meaning they have experienced four or more NFIP claims of $5,000 or more, or two or more claims where the total exceeds the building value. 66 of these properties have been mitigated.
What percentage of Maryland homes have flood insurance?
Only roughly 1 in 33 households in Maryland carries NFIP flood insurance (3% of estimated households). 21 counties in Maryland have elevated flood risk but low insurance coverage, indicating a significant protection gap.
Are there levees protecting Maryland cities?
Yes. The USACE National Levee Database lists 2 levee systems protecting parts of 2 Maryland cities. 0 are FEMA-accredited (generally mapped as Zone X), 2 are non-accredited (the protected area stays in the SFHA), and 0 are provisionally accredited (PAL, accreditation in progress). Levee protection is system-specific, not citywide - check a specific city's page or use the address search above for the zone at a specific property.
Understanding Flood Zones
Learn more about the FEMA flood zone designations common in Maryland.
See the Flood Map for Any Maryland Address
Enter a MD address to view its FEMA flood map, zone designation, SFHA status, and insurance requirements.
Disclaimer: Flood risk data on this page is sourced from FEMA datasets including the National Risk Index, NFIP claims and policy records, disaster declarations, and the Community Rating System. These datasets were last extracted on August 2026 and may not reflect the most recent changes. Always verify current flood zone status through FEMA or a licensed determination provider before making property, insurance, or lending decisions.