Flood Zone Lookup
Find the FEMA flood zone at your location and what it means for your basement, your drainage and your insurance.
A real person answers. Free estimate, no obligation.
Data: FEMA National Flood Hazard Layer (NFHL), live point lookup · FEMA Map Service Center · Updated September 2026
How the flood zone lookup works
FEMA maps every studied area into zones
The National Flood Hazard Layer divides mapped land into zones. A, AE, AH, AO and AR are high-risk zones with at least a 1 in 100 chance of flooding each year. V and VE are high-risk coastal zones with wave action. Shaded X is the moderate 0.2 percent zone, and plain X is minimal.
Your location is checked against the live map
When you tap Use my location, your phone shares its coordinates with FEMA's map service for this one lookup and the zone at that point comes back. Nothing is stored on this page.
Address search opens FEMA's map site
Typing an address opens the FEMA Map Service Center search in a new tab, where you can see the full map panel, the base flood elevation and any letters of map change for the parcel.
What the zone means for your basement
High-risk zones put the focus on flood vents, elevated mechanicals and a separate flood policy. Moderate and minimal zones see far more sewer backups and groundwater seepage than river floods, so a sump pump with a battery backup and a backflow valve matter more there.
Common questions
Every mapped point in the United States is in some FEMA zone; the question is which one. High-risk zones start with A or V, shaded X is moderate and plain X is minimal. This tool reads the zone at your location from FEMA's live map.
No. Standard homeowners policies exclude flood, meaning rising water from outside. Flood coverage is a separate policy through the NFIP or a private insurer, and lenders generally require it in a high-risk zone for a federally backed mortgage.
Both are high-risk. AE means the study calculated a base flood elevation for the area; A means the area was mapped as high-risk without a detailed elevation study. Building and insurance rules are similar.
Zone X is outside the high-risk area. Shaded X is the moderate zone with a 0.2 percent yearly flood chance, often called the 500-year floodplain. Unshaded X is minimal hazard. Basements in Zone X still flood from sewer backups, groundwater and failed sump pumps.
Yes. FEMA revises maps as studies update, and a property owner can apply for a letter of map amendment when survey data shows the building sits above the flood elevation. Check the current panel before any decision.
No. Lenders use a formal flood zone determination, and elevation questions need an elevation certificate from a surveyor. This lookup shows the zone at one point on the live FEMA map so you understand the risk before you call.
Get an exact answer from a local pro
Free to call — get connected with a local pro in your area.
Tap to Call(855) 321-3426Keep going
disclaimer: Delmarva Plumbers is a free service to assist homeowners in connecting with local service providers. All contractors/providers are independent and Delmarva Plumbers does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on Delmarva Plumbers.
Same-day and 24/7 emergency services are subject to provider participation, location, technician availability, and demand. Availability is not guaranteed and may vary by market and appointment capacity.
We use cookies and session-based analytics, including session replays (with form inputs masked), to improve this site. See our Privacy Policy.
About · Contact · Privacy · Terms · Disclosure · Sitemap
© 2026 Delmarva Plumbers. All rights reserved.