Enter any address in South Portland, Maine to see its FEMA flood zone
South Portland has a population of 26,498 residents. Like many communities in Maine, properties in South Portland may be located in various FEMA flood zones ranging from high-risk Special Flood Hazard Areas to low-risk zones.
Use the address lookup above to check the specific flood zone for any property in South Portland. Results come directly from FEMA's National Flood Hazard Layer (NFHL).
Statewide data from OpenFEMA. City-level breakdowns coming soon.
FEMA assigns flood zone designations to areas in South Portland, Maine:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in South Portland that are in FEMA Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
The average NFIP premium in Maine is approximately $866 per year.
Even in low-risk zones, flood insurance is recommended — from 2014 to 2024, nearly one-third of NFIP claims came from outside high-risk areas. Visit FloodSmart.gov for quotes.