Enter any address in Duval County, Florida to see its FEMA flood zone
Coastal flooding, driven by nor'easters and high tides, is a significant concern in Duval County. Recent events in October 2025 demonstrated this, with moderate tidal flooding impacting coastal areas, the Intracoastal Waterway, and extending inland along the St. Johns River. These events were characterized by extended onshore wind flow and gusty conditions.
The National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $50,417 and an average water depth of 2.5 feet. Properties in Zone X also show a substantial number of claims. Homeowners in coastal areas, along the St. Johns River, and those in lower-elevation zones should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
105 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Duval County, Florida has recorded 208 flood-related events since 1996 according to NOAA's Storm Events Database, including 54 flash floods and 102 river or area floods. The county has received 41 federal disaster declarations. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1968–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Hurricane Milton | Hurricane | Oct 5, 2024 |
| Hurricane Helene | Hurricane | Sep 23, 2024 |
| Hurricane Debby | Tropical Storm | Aug 1, 2024 |
| Tropical Storm Debby | Tropical Storm | Aug 1, 2024 |
| Hurricane Idalia | Hurricane | Aug 27, 2023 |
| Tropical Storm Idalia | Tropical Storm | Aug 27, 2023 |
| Hurricane Nicole | Hurricane | Nov 7, 2022 |
| Tropical Storm Nicole | Tropical Storm | Nov 7, 2022 |
| Hurricane Ian | Hurricane | Sep 23, 2022 |
| Tropical Storm Ian | Hurricane | Sep 23, 2022 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 30, 2025 | 0.00K |
| Flash Flood | Jun 29, 2025 | 0.00K |
| Flood | Aug 22, 2025 | 0.00K |
| Coastal Flood | Aug 20, 2025 | 0.00K |
| Flood | Jul 14, 2025 | 0.00K |
| Coastal Flood | Sep 9, 2025 | 0.00K |
| Coastal Flood | Oct 9, 2025 | 0.00K |
| Flash Flood | Jul 9, 2025 | 0.00K |
| Flood | Aug 7, 2025 | 0.00K |
| Coastal Flood | Oct 3, 2025 | 0.00K |
Flash Flood — Jun 30, 2025
Southwest flow over a moist and diurnally unstable airmass with slow storm motion produced flash flooding where boundaries merged along sea breezes and outflows in the afternoon across the Jacksonville downtown area.
Flash Flood — Jun 29, 2025
Southwest flow over a moist and diurnally unstable airmass triggered isolated strong to severe storms along sea breeze and boundary mergers toward the I-95 corridor in the mid-afternoon. Storm mergers produced very heavy rainfall rates where localized flash flooding occurred.
Flood — Aug 22, 2025
Weak southwest to west steering flow combined with high atmospheric moisture and surface forcing from a weak trough and sea breezes produced localized heavy rainfall in the afternoon and evening over a diurnally unstable airmass.
Coastal Flood — Aug 20, 2025
Increasing astronomical tides during the approaching new moon (8/23) combined with increasing NNE winds, and building swells from Hurricane Erin increased local tidal levels through the day, with peak inundation in the evening along the Atlantic coast around high tide, which was around 8 pm EDT. A coastal flood advisory was in effect for minor tidal flooding impacts, including flooding of norma...
Flood — Jul 14, 2025
A transition to ENE steering flow pushed the east coast sea breeze inland faster with sea breeze and outflow boundary mergers occurring across inland northeast Florida during the afternoon and early evening over a very moist and unstable airmass.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Duval County, Florida:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Duval County, Florida that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.