South Portland, ME
Tracking 8,830 properties across South Portland, Maine — a community where the median home dates to 1981. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
South Portland, MEInc. 1895
South Portland is a city immediately south of Portland across the Fore River, with a diverse property landscape that includes the Maine Mall area (the state's largest shopping center), a working waterfront with oil storage terminals, residential neighborhoods ranging from dense older housing to suburban development, and a stretch of Casco Bay coastline.
For property professionals, South Portland is a complex market with significant commercial and industrial property, coastal and harbor exposure, and a residential stock that spans from urban multi-family to suburban single-family. The industrial waterfront brings environmental screening considerations, and the coastal areas bring flood risk.
Risk Profile
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
FEMA Flood Zones
138 properties (2%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
Coastal & Water Exposure
5,188 properties (59%) are within 3 miles of the ocean. 559 are classified as waterfront. The closest property is 3,665 ft from the coastline.
The Property Landscape
8,830 properties · Median year built 1981 · Avg 4,458,129 sf
Property Types
Construction by Era
Living in South Portland
Cumberland County · Maine
South Portland covers 12.1 square miles in Cumberland County, Maine. The median assessed property value is $9K.
Single-family homes account for 7,325 of South Portland's 8,830 properties. There are 133 commercial properties.
Assessed values range widely — the middle 50% of properties fall between $6K and $106K. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most of South Portland (98%) is on municipal sewer. Electric service is provided by CENTRAL MAINE POWER CO. 705 properties have identified commercial activity — restaurants, retail, professional offices, and services that give South Portland its character.
Environmental note: South Portland has an average EPA lead paint indicator at the 58th percentile nationally. 5,793 properties exceed at least one EPA environmental justice threshold — a factor in lending compliance and environmental due diligence.
What South Portland Property Intelligence Means for Professionals
Insurance & Underwriting
With 2% of properties in FEMA flood zones and 59% in the coastal zone, South Portland concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
South Portland's 7 property types require local market knowledge for accurate comparable selection and valuation. NEP assembles building characteristics, environmental exposure, and condition signals into a single property profile.
Real estate solutionsLending & Title
Collateral assessment requires flood zone verification, environmental screening, and ownership chain validation. 2% of South Portland properties are in SFHAs where flood insurance is a federal lending requirement. NEP provides property-level compliance data from public records.
Lending solutionsInspection & Property Services
Understanding a property's construction era, environmental exposure, and building characteristics before arriving on site transforms inspection from discovery to verification.
Inspection solutionsExplore South Portland property intelligence.
8,830 South Portland properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.
Source: NE Provenance, “Professional Property Intelligence for New England,” neprovenance.com/insights/town/south-portland-me. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.