State flood insurance guide

Flood Insurance in Maryland

Chesapeake Bay storm surge, tidal flooding, and heavy rain put Maryland homes at risk, and state law makes sure you hear that a standard policy does not cover it. Here is how flood insurance works in Maryland, in plain English.

Your two options: NFIP or private flood insurance

The National Flood Insurance Program (NFIP), run by FEMA, is the federal option. For homes, it offers up to $250,000 in building coverage and up to $100,000 in contents coverage, sold as two separate coverages. For businesses, up to $500,000 for the building and up to $500,000 for contents. NFIP rates are set by FEMA, so the price does not change with the agent you buy from. The Maryland Insurance Administration notes most policies carry a 30-day waiting period. You buy NFIP policies through a licensed insurance agent, and your community must participate in the NFIP for you to be eligible.

Private flood insurance is the second option, and Maryland's Insurance Administration notes a third path as well: surplus lines carriers, which write coverage for risks that admitted carriers will not take. Private policies can offer higher limits than the NFIP, different deductibles, and sometimes different waiting periods, and the insurer sets the premium. One Maryland-specific detail worth knowing: the NFIP pays contents claims at actual cash value (what your belongings were worth at the time of the damage), so a private policy's contents terms are worth comparing closely.

Maryland-specific rules and resources

Maryland law requires insurers to give homeowners a written notice titled "Important Information Required by Maryland Law." It states that the standard homeowners insurance policy does not cover loss caused by flood, and points you to the NFIP at FloodSmart.gov or 888-379-9531. If you never received that notice, or never read it, consider this your second chance.

The Maryland Insurance Administration keeps dedicated flood resources, including a "Know Your Flood Risk" page and a flood insurance FAQ for small business owners. Its standing message: anywhere it rains, it can flood, so consider flood insurance even outside high-risk zones. The administration also publishes guidance on telling flood damage apart from other water damage, since the distinction decides which policy pays.

Maryland tip: sewer and drain backup is a separate conversation. Maryland insurers must offer you coverage for water that backs up through sewers and drains, up to your full homeowners policy limits. That coverage can pay for a backup even though your homeowners policy never covers flood. Ask your agent whether you have it, and at what limit.

Lender rules and the mandatory purchase requirement

The mandatory purchase rule is federal, not state. Under the Flood Disaster Protection Act of 1973, flood insurance is required when a building sits in a Special Flood Hazard Area (the high-risk zone on FEMA's maps) and the loan is backed by the federal government or made by a federally regulated lender. Your lender checks FEMA's maps, and if your property is in a high-risk zone, the lender can require flood insurance as a condition of the loan.

Lenders can also require flood insurance outside high-risk zones, and many do. If you believe FEMA's map is wrong for your property, a FEMA Letter of Map Amendment (LOMA) is the formal way to challenge it.

How flood claims work

The NFIP claims process is the same nationwide. Here is the plain-English version, based on FEMA's claims manual:

Notify your insurer or agent promptly after the flood. Do not wait.
Document everything. Take photos and video of the damage before you clean up, and keep damaged items until the adjuster has seen them.
Prevent further damage. Make temporary repairs and keep receipts for anything you spend protecting the property.
File a signed, sworn proof of loss within 60 days of the flood, with documentation supporting the amount you are claiming. FEMA sometimes extends this deadline after major disasters.
An adjuster inspects the damage, and payment follows once the insurer agrees on the covered amount. If your claim is denied or you disagree with the amount, you can appeal directly to FEMA within 60 days of the denial letter.

If local officials declare your home substantially damaged, your NFIP policy's Increased Cost of Compliance (ICC) coverage can provide up to $30,000 to help bring the building up to current floodplain standards, through elevation, relocation, demolition, or floodproofing.

What to do next

Start with the map, then talk to a human. Check your FEMA flood zone for free, then get real quotes from a licensed specialist who can compare NFIP, private, and surplus lines options side by side.

Check your flood zone

Free FEMA map lookup for any Maryland address, explained in plain English. No email required.

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Get a flood quote

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Quick answers

Does my homeowners insurance cover flood damage in Maryland?

No. Maryland law requires insurers to give you a written notice stating that the standard homeowners policy does not cover loss caused by flood. You need a separate flood policy.

What is a surplus lines flood policy?

Surplus lines carriers write insurance for risks where admitted-carrier coverage is not available. The Maryland Insurance Administration notes this as a third option beyond the NFIP and private admitted carriers, and cautions that it has very limited jurisdiction over surplus lines policies.

Does flood insurance cover water that backs up through my drains?

Not as flood. But Maryland insurers must offer you separate coverage for water backup through sewers and drains, up to your full homeowners policy limits. Check with your agent whether you carry it.

Sources

Maryland Insurance Administration, "Know Your Flood Risk" (NFIP, private market, and surplus lines options; NFIP limits; 30-day wait)
Maryland Insurance Administration, "Important Information Required by Maryland Law" (mandatory homeowners disclosure: standard policies do not cover flood; sewer/drain backup offer)
Maryland Insurance Administration, commercial flood insurance FAQ ($500,000 limits; waiting period exception for mortgage renewals)
FEMA, NFIP Claims Manual (proof of loss within 60 days, documentation duties)
FEMA, Increased Cost of Compliance coverage (up to $30,000 for elevation, relocation, demolition, or floodproofing)
FEMA, NFIP Desk Reference Guide for State Insurance Commissioners (60-day FEMA appeal window)
FloodSmart.gov (the NFIP's official consumer site)

Last verified: 2026-10-10

This guide is general information, not insurance advice. Flood maps, program rules, and requirements change over time. Nothing here guarantees coverage, pricing, or how a claim will turn out. Confirm the details with a licensed insurance agent before you buy or rely on a policy.