Martin County Flood Zones
County seat: Stuart. 160,464 residents. Coastal county — Southeast Florida (Atlantic).
Flood risk in Martin County
Located in the southeast region of Florida, Martin County faces a dual threat from extreme storm surge and high rain flood risk due to its direct coastal exposure and recent severe weather patterns. This vulnerability is evident across communities such as Stuart and Jupiter Island, where residents have repeatedly confronted major weather events in recent years. The area's hazard profile was significantly reinforced by the FEMA-declared disaster following Hurricane Milton in 2024, which compounded the impacts of earlier storms like Hurricane Ian and Tropical Storm Nicole in 2022. Historical data shows a consistent pattern of high-intensity systems, including Hurricanes Irma and Matthew, which have tested the resilience of this population exceeding 160,000. The combination of low-lying geography and frequent tropical activity means that flood hazards are not limited to coastal inundation but also include significant inland water accumulation during heavy rainfall events. Property owners and prospective buyers in this corridor must recognize that standard insurance often excludes these specific water-related damages. Verify your specific flood zone designation and review your evacuation route before the next storm season begins.
Risk profile
Martin County is situated in the southeast region of Florida and maintains a coastal status that contributes to extreme storm surge risk. Recent FEMA-declared events include Hurricane Milton in 2024, alongside a high rain flood risk designation. Communities such as Stuart and Jupiter Island are part of a population exceeding 160,000 residents facing these combined hazards.
Recent FEMA-declared storms
Tropical systems that triggered federal disaster declarations covering Martin 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 Martin County
- Stuart19,566
- Indiantown6,810
- Sewall's Point2,072
- Jupiter Island837
- Ocean Breeze402
Source: US Census SUB-EST 2024.
Need real numbers, not estimates?
Buying or selling in Martin County? A local Florida agent can tell you how flood zone affects price, insurance, and closing.
FAQ
What flood zones are in Martin County?
Martin 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 Martin County recently?
Storms that triggered FEMA disaster declarations covering Martin 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 Martin 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 Martin County?
As a Southeast Florida (Atlantic) county, Martin 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 Martin County?
160,464 residents (ACS5 2023, US Census). The county seat is Stuart.
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.