Palm Beach County Flood Zones
County seat: West Palm Beach. 1,507,453 residents. Coastal county — Southeast Florida (Atlantic).
Flood risk in Palm Beach County
Situated in southeast Florida, Palm Beach County faces a complex flood profile driven by its coastal location and high density of development. The region is exposed to extreme storm surge risks along the Atlantic coast while simultaneously contending with high rain flood risks that affect inland areas. This dual hazard environment has been repeatedly tested by significant weather events, including Hurricane Milton in 2024 and Hurricane Ian in 2022, both of which resulted in federal disaster declarations. Recent history shows a pattern of recurring threats, with Tropical Storm Nicole also impacting the area in 2022. These conditions directly affect the more than 1.5 million residents living in major municipalities such as West Palm Beach and Boca Raton, where storm water management and surge protection are critical. The combination of low-lying topography and frequent tropical systems means that flooding can occur from both ocean overwash and intense rainfall accumulation. Property owners and prospective buyers must recognize that standard insurance policies often do not cover these specific water-related damages. Verify your flood zone designation and understand your evacuation route before the next storm season begins.
Risk profile
Hurricane Milton in 2024 and Hurricane Ian in 2022 are among the recent FEMA-declared events affecting this southeast coastal county. With extreme storm surge risk and high rain flood risk, the county supports a population of over 1.5 million across major cities like West Palm Beach and Boca Raton. These overlapping hazards characterize the flood profile for this county.
Recent FEMA-declared storms
Tropical systems that triggered federal disaster declarations covering Palm Beach County (most recent first):
- Hurricane Milton (2024)
- TS Nicole (2022)
- Hurricane Ian (2022)
- Hurricane Isaias (2020)
- Hurricane Dorian (2019)
- Hurricane Irma (2017)
- Hurricane Matthew (2016)
- Hurricane Isaac (2012)
Source: OpenFEMA Disaster Declarations Summaries.
Major cities in Palm Beach County
- West Palm Beach127,744
- Boca Raton102,238
- Boynton Beach83,095
- Delray Beach70,140
- Palm Beach Gardens63,284
Source: US Census SUB-EST 2024.
Need real numbers, not estimates?
Buying or selling in Palm Beach County? A local Florida agent can tell you how flood zone affects price, insurance, and closing.
FAQ
What flood zones are in Palm Beach County?
Palm Beach County contains a mix of FEMA flood zones. Coastal and low-lying areas typically fall in Special Flood Hazard Areas (zones AE, A, VE), while higher-elevation areas are usually Zone X. Use the lookup tool above to check any specific address against the live National Flood Hazard Layer.
What hurricanes have impacted Palm Beach County recently?
Storms that triggered FEMA disaster declarations covering Palm Beach County since 2019: Milton (2024), Nicole (2022), Ian (2022), Isaias (2020), Dorian (2019). Federal disaster declarations cover both direct landfall counties and surrounding counties eligible for federal assistance.
Is flood insurance required in Palm Beach County?
Flood insurance is federally required for any property in a Special Flood Hazard Area (zones beginning with A or V) that has a federally backed mortgage. In Zone X it is optional but often inexpensive. The lookup tool above tells you whether a specific address falls in an SFHA.
How does storm surge affect Palm Beach County?
As a Southeast Florida (Atlantic) county, Palm Beach faces extreme storm surge risk during tropical systems. Storm surge is separate from rainfall flooding and is not always reflected in FEMA flood zone designations — check your county's evacuation zone as well.
What is the population of Palm Beach County?
1,507,453 residents (ACS5 2023, US Census). The county seat is West Palm Beach.
Sources: FEMA National Flood Hazard Layer, OpenFEMA Disaster Declarations, US Census Bureau (ACS 5-year, SUB-EST 2024), Florida Department of Environmental Protection. Flood zone designations and risk profiles change over time — always verify with the official lookup before making property decisions.