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St. Lucie County, Florida Flood Zones

Check an Address in St. Lucie County

Enter any address in St. Lucie County, Florida to see its FEMA flood zone

The Flooding Character of St. Lucie County

Flood events, including tropical storms and flash floods, have been the most frequent weather-related hazards in St. Lucie County over the past 30 years. Recent events include Hurricane Milton in October 2024, which brought heavy rainfall and a tornado outbreak to the area, and Hurricane Helene in September 2024, which caused tropical storm conditions and minor damage.

National Flood Insurance Program (NFIP) data shows a significant number of claims filed in St. Lucie County. Zone A, which typically has a moderate flood risk, has the highest number of claims at 2,436, with an average payout of $23,435 and an average water depth of 3.5 feet. Zone X, representing areas with a low to moderate flood risk, has 741 claims. Properties in Zone V, designated for high-velocity wave action, have the highest average payout at $38,389 and an average water depth of 6.2 feet, though with fewer claims.

Homeowners in St. Lucie County, particularly those in Zone A and Zone V, as well as those in areas prone to flash flooding or storm surge, should pay close attention to their flood risk.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from St. Lucie County

22 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read Florida flood stories →

Flood Risk Data for St. Lucie County

St. Lucie County, Florida has recorded 26 flood-related events since 1996 according to NOAA's Storm Events Database, including 5 flash floods and 10 river or area floods. The county has received 38 federal disaster declarations, 1 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

St. Lucie County Disaster History

FEMA Disaster Declarations (1965–2024)

Disaster Declarations
38
Flood/Coastal Disasters
1
Hurricane Disasters
15
Latest Disaster
Hurricane Milton (2024-10-05)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in St. Lucie County

DeclarationTypeDate
Hurricane MiltonHurricaneOct 5, 2024
Hurricane NicoleHurricaneNov 7, 2022
Tropical Storm NicoleTropical StormNov 7, 2022
Hurricane IanHurricaneSep 23, 2022
Tropical Storm IanHurricaneSep 23, 2022
Hurricane IsaiasHurricaneJul 31, 2020
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Hurricane DorianHurricaneAug 28, 2019
Hurricane IrmaHurricaneSep 4, 2017

Recorded Flood Events in St. Lucie County

NOAA Storm Events Database (1996–2025)

Total Flood Events
26
River/Area Floods
10
Flash Floods
5
Coastal/Storm Surge
2
Hurricanes/Tropical Storms
9
Total Property Damage
$117.1M
Flood Deaths
1

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in St. Lucie County

TypeDateDamage
Tropical StormSep 26, 20240.00K
Flash FloodOct 9, 20240.00K
Tropical StormOct 9, 2024— (1 deaths)
Storm Surge/TideSep 29, 2022
Tropical StormSep 28, 20220.00K
FloodSep 27, 20220.00K
Tropical StormNov 9, 2022
Storm Surge/TideNov 9, 20220.00K
Tropical DepressionJun 3, 20220.00K
Flash FloodNov 21, 20215.00K

St. Lucie County Flood History

Tropical Storm — Sep 26, 2024

Major Hurricane Helene paralleled the west coast of Florida about 100 miles offshore before making landfall in the Big Bend region of Florida near the city of Perry. The system's expansive wind field within its eastern periphery produced a period of tropical storm conditions, particularly in gusts, across much of east central Florida including its adjacent coastal waters. Peak wind gusts ranged...

Flash Flood — Oct 9, 2024

Hurricane Milton moved ashore the west-central Florida coast as a category 3 hurricane on Oct 9 around 1930EST. The system continued slowly in an east-northeast trajectory across central Florida, becoming a category 1 hurricane before emerging into the Atlantic Ocean near Cape Canaveral. The outer rainbands of Milton overspread the Florida peninsula earlier in the day, leading to a prolific tor...

Tropical Storm — Oct 9, 2024

Hurricane Milton moved ashore the west-central Florida coast as a category 3 hurricane on Oct 9 around 1930EST. The system continued slowly in an east-northeast trajectory across central Florida, becoming a category 1 hurricane before emerging into the Atlantic Ocean near Cape Canaveral. The outer rainbands of Milton overspread the Florida peninsula earlier in the day, leading to a prolific tor...

Storm Surge/Tide — Sep 29, 2022

After making landfall as a major hurricane in southwest Florida near Cayo Costa, Ian crossed the peninsula and into east central Florida (southern Osceola County) as a Category 1 Hurricane with estimated maximum sustained winds of 75 mph. The system was downgraded to a tropical storm shortly thereafter and emerged into the Atlantic Ocean near Cape Canaveral. Ian's slow movement and large wind f...

Tropical Storm — Sep 28, 2022

After making landfall as a major hurricane in southwest Florida near Cayo Costa, Ian crossed the peninsula and into east central Florida (southern Osceola County) as a Category 1 Hurricane with estimated maximum sustained winds of 75 mph. The system was downgraded to a tropical storm shortly thereafter and emerged into the Atlantic Ocean near Cape Canaveral. Ian's slow movement and large wind f...

Source: NOAA National Weather Service Storm Events Database.

St. Lucie County NFIP Flood Insurance Claims

Total Claims Filed
3,322
Total Paid Out
$70.8M
Avg Claim
$31,902
Avg Water Depth
7.0 ft

Claims by Flood Zone

A Zones (High Risk)
2,436
V Zones (Coastal)
28
X Shaded (500-yr)
69
X Unshaded (Low)
21

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in St. Lucie County

FEMA assigns flood zone designations to areas in St. Lucie 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.

View all flood zone types →

Flood Insurance in St. Lucie County

Properties in St. Lucie 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.