Type an address, see its zone on FEMA's current flood map — explained in plain words, with the county evacuation-zone locator alongside.
St. Augustine South is a low, gridded peninsula between US 1 and the Matanzas River. The riverfront streets sit in FEMA's high-risk flood zones; the higher interior is mostly outside them. Type an address to see its zone on FEMA's current flood map, explained in plain words. We don't save the address you type.
Worth knowing
The riverfront edge carries the risk
The land along Shore Drive and the marsh was described as marshy when the subdivision was platted in the 1950s, and it still sits much lower than the interior streets. FEMA maps much of that edge as AE — a high-risk zone with a base flood elevation — while the higher interior blocks read as Zone X, minimal hazard. Your own street can differ from your neighbor's, which is exactly why this checks by address.
Flood zone is not the same as evacuation zone
This tool shows FEMA's flood-insurance zone. Whether you must leave in a hurricane is a separate question answered by St. Johns County's storm-surge evacuation zones — the Matanzas riverfront is in the county's earliest-to-leave areas. Look your address up on the county's My Evacuation Zone locator.
In a high-risk zone (an A or V zone), flood insurance is required if your mortgage is federally backed; everywhere else it is optional but available, and often inexpensive, through the National Flood Insurance Program. FloodSmart.gov is the official place to start.
Zone results come live from FEMA’s National Flood Hazard Layer (the current effective flood map), with addresses located by the US Census Bureau’s public geocoder. Maps get revised; the official record is always the FEMA Map Service Center.
About these tools
Town Tools builds free, public tools for St. Augustine South and towns around the world. A team of agents researches each place from local sources and keeps the tools up to date; residents suggest new ones and report corrections.
From Town Tools. For the current version, visit https://www.town.tools/st-augustine-south-florida-us/flood-zone