Florida land risk screen
Enter a Florida street address to combine four public-data steps: Census geocoding, NWI wetlands, FEMA flood-hazard mapping and USGS elevation context. The tool shows the evidence returned—and the important questions it cannot answer.
Florida public-data screen
Start with a street addressRead the result correctly
The live result is deliberately conservative. It is useful for triage—what to research first—not for deciding that a parcel is safe, dry, buildable or permit-ready.
| Result | What it means | Verify next | Higher-confidence evidence |
|---|---|---|---|
| Wetland flag | NWI polygon at the geocoded point | NWI map + full parcel/project footprint | Field delineation / formal determination where needed |
| Flood zone | NFHL polygon returned for the point | Effective FIRM and map-change history | Survey/elevation/floodplain review as needed |
| Elevation | USGS terrain estimate | Topographic context | Surveyed elevations / Elevation Certificate when required |
| County | Census geography | Official county agencies and GIS | Local written confirmation for zoning/permits |
What to do next
Use the NWI Wetlands Mapper and FEMA Map Service Center around the entire parcel, not only the geocoded point.
Mark the proposed home, driveway, septic/reserve area, well, utilities, grading, drainage and any accessory structures.
Open the county property appraiser/GIS, zoning and permit records, then identify the correct water management district and environmental permitting authority.
Survey, wetland delineation, septic evaluation, access/title review and engineering should happen before a non-refundable commitment when they can change the deal.
Official data used
U.S. Fish & Wildlife Service · United States
Query National Wetlands Inventory polygons and wetland codes for web-based screening applications.
Important: NWI is a screening dataset updated with the Wetlands Mapper and does not establish a regulatory boundary or jurisdiction.
U.S. Census Bureau · United States
Convert a complete street address to an interpolated coordinate and Census geography for public-data screening.
Important: A geocoded address point is not a parcel boundary, survey monument or proof that a structure exists at the returned coordinate.
U.S. Geological Survey · United States
Return a terrain elevation estimate from The National Map for a latitude/longitude point.
Important: The value is interpolated from elevation data and is not a surveyed elevation, benchmark or Elevation Certificate.
Florida Department of Environmental Protection · Florida
Official process for a legally binding determination of the landward extent of wetlands and other surface waters while the determination is valid.
Important: A formal determination is a separate agency process; a web map, desktop screen or consultant sketch is not the determination itself.
Federal Emergency Management Agency · United States
View, download and work with official effective flood-hazard data and map products.
Important: Flood-hazard layers do not replace a survey, elevation certificate, local floodplain review, insurance analysis or map-change research.
Questions
No. A street address is geocoded to a point. The result tells you what public datasets return at that point; a large or irregular parcel can contain conditions the address point does not intersect.
No. NWI is a screening dataset. Field conditions, mapping gaps and regulatory delineation can differ. Use a qualified delineation and the applicable agency process when the decision matters.
No. It is useful terrain context, but it is not a surveyed elevation or an Elevation Certificate and should not be compared casually with a regulatory Base Flood Elevation.
Continue the parcel check
