Maryland has about ~55,000 active NFIP flood insurance policies, with an average annual premium of $860/yr under FEMA's Risk Rating 2.0 methodology. The biggest flood risk areas in the state are Chesapeake Bay shoreline, Ocean City coast, Potomac River valley, Patuxent and Patapsco rivers. Private flood market availability: Moderate.
NFIP Policies in Force
~55,000
Estimate, federal flood program
Avg NFIP Premium
$860/yr
Risk Rating 2.0 average
Private Flood Market
Moderate
Carrier availability for higher limits
| Topic | Detail | Notes |
|---|---|---|
| Top risk areas | Chesapeake Bay shoreline, Ocean City coast, Potomac River valley, Patuxent and Patapsco rivers | Mandatory purchase in SFHA + federal mortgage |
| Recent major flood | Ellicott City flash floods (May 2018, July 2016); 2021 Ida remnants | Drives claim data and premium revisions |
| Average NFIP premium | $860/yr | Risk Rating 2.0 phased increases (18%/yr cap) |
| CBRS coastal restrictions | Yes — CBRS zones present | NFIP unavailable on undeveloped CBRS barrier areas |
NFIP statistics from FEMA's national insurance data; premium averages reflect Risk Rating 2.0 phase-in. Private flood market sized from state department of insurance filings. Always verify your specific property's flood zone at floodsmart.gov.
Maryland's flood risk combines extensive Chesapeake Bay shoreline exposure — over 3,000 miles of tidal shoreline including the Eastern Shore's low-lying farmland and the Western Shore's developed suburban communities — with significant urban flash flood vulnerability, as demonstrated catastrophically by Ellicott City. The historic Main Street of Ellicott City experienced 100-year flash floods in both July 2016 and May 2018 within a two-year window, washing away buildings and vehicles, killing residents, and prompting major demolition of the flood-prone lower Main Street. The narrow Patapsco River gorge concentrates intense rainfall into a powerful floodwave with little warning time. Ocean City on the Atlantic coast faces barrier island surge and overwash risk from nor'easters and the periodic tropical storm. The Eastern Shore — particularly Dorchester County, which is largely below sea level and sinking — faces existential flood risk from sea level rise.
Maryland has approximately 55,000 NFIP policies, concentrated in coastal Anne Arundel, Queen Anne's, Talbot, Dorchester, and Worcester counties, plus Baltimore and Howard counties where riverine and urban flooding are significant. Risk Rating 2.0 brought meaningful increases to many Maryland coastal properties along the Chesapeake and Atlantic shorelines, where long-discounted premiums are now reflecting actuarial flood risk more accurately. The statewide average of approximately $860 per year reflects this coastal concentration. Private flood insurance is moderately available in Maryland, particularly for higher-value Annapolis, Eastern Shore, and Ocean City properties.
Homeowners and renters policies categorically exclude flood damage. You must purchase a separate flood policy through the National Flood Insurance Program (NFIP) or a private flood insurer. Note: there's a standard 30-day waiting period from purchase to coverage, so don't wait until a storm is forecast.
NFIP residential policies cap building coverage at $250,000 and contents at $100,000. Homes worth more than these limits should consider 'excess flood' coverage through a private insurer or a fully-private flood policy with higher limits.
Major flood event affecting Maryland: Ellicott City flash floods (May 2018, July 2016); 2021 Ida remnants. Repeated severe events tend to push up local NFIP premiums and shift more properties into mandatory-purchase Special Flood Hazard Areas.
💡 Maryland Pro Tip
Flood insurance is required for federally backed mortgage holders in Maryland SFHAs — which include extensive Chesapeake Bay tidal shoreline areas, the Potomac River floodplain through Montgomery and Prince George's counties, the Patuxent and Patapsco river corridors, and Ocean City barrier island zones. Maryland's Eastern Shore has some of the most extensive low-lying coastal floodplain geography in the mid-Atlantic. The Ellicott City events demonstrated that properties in urban gorge settings can experience devastating flash floods with little warning, even outside traditional river floodplains.
Maryland's average NFIP premium is approximately $860 per year. Chesapeake Bay shoreline properties in Annapolis, the Eastern Shore counties, and Anne Arundel County typically pay $900–$2,200. Ocean City barrier island properties may pay $1,500–$3,500. Inland urban properties in Baltimore and Howard counties pay $600–$1,400. Zone X properties in lower-risk areas can access Preferred Risk Policies at $400–$700. Private flood insurance is available in Maryland for higher-value coastal and waterfront properties.
NFIP flood insurance in Maryland covers Chesapeake Bay and Atlantic coastal storm surge (the primary coastal peril), riverine flooding from the Potomac, Patuxent, Patapsco, Gunpowder, and other rivers, tidal flooding along the Chesapeake's many tributaries, urban flash flooding in areas like Ellicott City when there is a general surface water condition, and mudflow caused by flooding. It does not cover shoreline erosion, wave damage above the flood line, sewer backup unless caused by external flooding, or basement seepage. Maryland's Chesapeake Bay Critical Area law creates additional permitting restrictions for flood-zone construction that may affect rebuilding after a loss.
Data sourced from FEMA NFIP statistics and state Department of Insurance filings for Maryland, April 2026.
Michael Torres
Editorial Lead, Catastrophe & Commercial Property
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed April 2026
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