Bulk Flood & Wind Zone Look-up

This tool standardizes addresses via U.S. Census Geocoder and searches FEMA NFHL Flood Hazard Zones. This should not be relied on for anything important.

Map

Pins show all matched locations; A/V zones are highlighted; Tier 1 counties are orange. Double-click a pin to open FEMA MSC.

Wind List:

Paste addresses or lat/long (one per line)

Parallel requests (lower = safer)

Delay between address starts (ms)

Max retries (Census + FEMA)

Retry base delay (ms)

De-dupe input lines (exact match ignoring whitespace)

Total: 0

Done: 0

Matched: 0

Errors: 0

Filter (address or zone)

Input	Standardized address	Flood zone	Wind County	Coast (mi)	Confidence
No results yet.

Sources: FEMA NFHL MapServer (layer 28 Flood Hazard Zones, layer 0 Availability), U.S. Census Geocoder (onelineaddress + coordinates), OpenStreetMap Nominatim (search/reverse) for international or Census-miss fallback, OpenStreetMap tiles for the basemap, Tier 1 county outlines from us-atlas counties, and NOAA GSHHG shoreline (local) for coast distance.