What each FEMA flood zone means
FEMA's flood maps sort land into five risk levels. The zone letter drives whether your lender requires flood insurance, and it feeds into what the policy costs.
| Zone | Risk level | Flood insurance with a federally backed mortgage |
|---|---|---|
| A, AE, AH, AO, AR, A99 | High risk, from a nearby pond, stream, river or a protective barrier under construction | Required |
| V, VE | Coastal high risk, with an added hazard from storm waves | Required |
| B and shaded X | Moderate, usually between the 100-year and 500-year flood limits | Recommended |
| C and unshaded X | Minimal, usually above the 500-year flood level | Recommended |
| D | Undetermined, because no flood hazard analysis has been done | Recommended |
FEMA's advice is to check your zone every year, because map updates can move a property into a higher or lower risk zone and change both the insurance requirement and the premium.
Where flooding comes from in Jacksonville
The City of Jacksonville's floodplain office says Duval County sees coastal, inland and river flooding. The most common flooding happens in the rainy season from June to November, low-lying areas flood from rising water, and parts of the county have flooded from the tributaries and creeks of the St. Johns River. The most severe events come with hurricanes and tropical storms.
The city grew up on both banks of the St. Johns River, and Hurricane Irma in September 2017 caused record-breaking floods in Jacksonville. Hurricane Matthew in October 2016 flooded parts of Jacksonville, Jacksonville Beach, Atlantic Beach and Neptune Beach. So a home miles from the ocean can still carry real flood risk if it sits near a creek or the river. Compare areas in our Jacksonville neighborhood guide, then check each address on its own.
How to look up a Jacksonville parcel's flood zone
- FEMA Flood Map Service Center: the official online source for flood maps under the National Flood Insurance Program (NFIP). Search the address and note the zone and the map panel date.
- City Development Services Division: for official flood zone determinations or copies of available elevation certificates, call (904) 255-8310 or visit 214 N. Hogan St., second floor. The city says staff can also share estimated flood depths and past flood problems in the area.
- Know Your Zone: the Florida Division of Emergency Management's map shows whether the address is in a hurricane evacuation zone, which is a separate question from the FEMA zone.
- If the map looks wrong: an owner can ask FEMA for a Letter of Map Amendment (LOMA) or Letter of Map Revision (LOMR).
Run this check before you make an offer, not after. The zone affects your monthly cost, which our Jacksonville cost of living guide breaks down alongside tax and insurance.
Elevation certificates: ask for one early
An elevation certificate records how high a building sits, and FEMA's FloodSmart program lists the height of the first floor and the foundation type among the factors that set NFIP premiums. For a home in a high-risk zone, the certificate can make a large difference to the quote.
Ask the seller for an existing certificate first. The city keeps copies of some elevation certificates for structures built in the floodplain since 1992, and it says review of a submitted certificate takes 7 to 10 business days, so allow time in your inspection period. If there is no certificate, ask your insurance agent whether one is worth ordering before you close.
Flood insurance: the wait, the discount and assumable policies
- Homeowners policies exclude flood. Both the city and Florida's disclosure form say so. Jacksonville takes part in the NFIP, so a separate flood policy is available.
- 30-day wait: NFIP coverage starts 30 days after purchase. FloodSmart lists four exceptions, so ask your agent whether one applies to your purchase and loan.
- City discount: Jacksonville is rated class 6 in FEMA's Community Rating System, which the city says gives NFIP policyholders a 20% discount inside a Special Flood Hazard Area and 10% outside one.
- Assuming the seller's policy: FloodSmart says a buyer may be able to take over the prior owner's NFIP policy, and if that policy is not yet at the full-risk rate, increases are usually capped at 18% a year.
- Contents: the city notes that many policies bought to satisfy a lender cover the building but not its contents.
If the home will be insured through Citizens Property Insurance, flood coverage is required now for homes in a Special Flood Hazard Area and is being phased in for all personal residential policies with wind coverage by January 1, 2027.
Florida's seller flood disclosure
Under section 689.302 of the Florida Statutes, a seller of residential real property must complete and give the buyer a flood disclosure at or before the time the sales contract is signed. The form says whether the seller:
- knows of flooding that damaged the property during the seller's ownership,
- has filed a flood damage claim with any insurer, including the NFIP, and
- has received flood damage assistance, including from FEMA.
Flooding on the form includes rising inland or tidal water, rapid runoff from a river, stream or drainage ditch, and sustained standing water from rainfall. The law was created in 2024 and amended by SB 948 in 2025, effective October 1, 2025, which added flood disclosures for residential tenants, buyers of new condo units from a developer and mobile home park lessees.
The form only covers the current seller's time in the home. Ask about earlier history, drainage work and water intrusion, and use our Florida home inspection checklist to look for signs of past water damage.
Evacuation zones are not flood zones
Florida's Know Your Zone map marks low-lying, flood-prone areas that are most likely to be told to evacuate before a hurricane. It is built for emergency planning, not insurance. An address can be in an evacuation zone and a low-risk FEMA zone, or the other way round, so check both.
Beachfront homes and the coastal construction control line
On the oceanfront, a second set of rules applies. The Florida Department of Environmental Protection's Coastal Construction Control Line (CCCL) program regulates structures and activities that can cause beach erosion, destabilize dunes or damage nearby property, and seaward of the line it applies siting and design standards that can be stricter than elsewhere. If you plan to rebuild, add on or put in a pool or deck near the dune, check where the line falls with DEP's CCCL locator and whether the work needs a CCCL permit.
Oceanfront parcels can also fall in V or VE zones. Start with our guides to Jacksonville Beach and Atlantic Beach, and see the Jacksonville condo guide if you are looking at a beach building.
Common questions
What flood zone is Jacksonville in?+
There is no single flood zone for Jacksonville. FEMA maps each area separately, so neighboring streets can be in different zones. Zones A and V are high risk and require flood insurance with a federally backed mortgage, while B, C and X are moderate or low risk. Look up the exact address on FEMA's Flood Map Service Center or ask the city's Development Services Division at (904) 255-8310.
Do I need flood insurance in a Jacksonville X zone?+
A lender usually won't require it in zone X, but FEMA recommends it because 1 in 3 flood insurance claims come from low and moderate-risk zones. Jacksonville's class 6 rating in FEMA's Community Rating System gives NFIP policyholders outside high-risk zones a 10% discount. Remember that NFIP coverage normally starts 30 days after you buy it.
Does a Florida seller have to disclose past flooding?+
Yes. Section 689.302 of the Florida Statutes requires the seller of residential property to give the buyer a flood disclosure at or before signing the contract. It states whether the seller knows of flood damage during their ownership, has filed a flood insurance claim, including with the NFIP, or has received flood assistance such as FEMA aid. It does not cover earlier owners.
What is the difference between a flood zone and an evacuation zone?+
A FEMA flood zone is an insurance and mapping label that decides whether a lender requires flood coverage. An evacuation zone comes from Florida's Know Your Zone map and marks low-lying, flood-prone areas most likely to be ordered to leave before a hurricane. The two are set for different purposes, so check both for any Jacksonville address you are considering.
Sources
- FEMA FloodSmart: What is my flood zone?
- FEMA FloodSmart: Buy a policy
- FEMA FloodSmart: Flood insurance premium costs
- City of Jacksonville: Floodplain management
- City of Jacksonville: Flood protection information
- Wikipedia: Jacksonville, Florida
- Florida Statutes 689.302: Disclosure of flood risks to prospective purchaser
- Florida Senate: CS/CS/HB 1049 (2024), Flood Disclosure in the Sale of Real Property
- Florida Senate: CS/CS/SB 948 (2025), Flood Disclosures
- Florida Division of Emergency Management: Know Your Zone, Know Your Home
- Florida DEP: Coastal Construction Control Line Program
- Citizens Property Insurance: Flood insurance requirement