South Portland, ME
Cumberland County43.6382°N, 70.2529°W
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.
8,830
Properties Tracked
1981
Median Year Built
$9K
Median Assessed Value
2%
FEMA Flood Zone
1.95M
NEP Data Facts Tracked
59%
Coastal Zone
Click any parcel to view intelligence
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.
X
8,692
AE
116
VE
19
A
3
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
Grade A
2,993
Grade B
4,943
Grade C
881
Grade D
12
Grade E
1
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.
170
SLR 1 ft
Properties affected
184
SLR 3 ft
Properties affected
244
SLR 6 ft
Properties affected
2,126
Surge Exposure
Cat 1/2/3/4
220
Estuary
Waterfront
108
Pond
Waterfront
78
Marine
Waterfront
Zone 2
Radon Risk
112 mph
Design Wind Speed
ASCE 7 standard
50 psf
Ground Snow Load
ASCE 7 standard
Very Low
FEMA Risk Index
NRI composite rating
The Property Landscape
8,830 properties · Median year built 1981 · Avg 4,458,129 sf
Property Types
Single Family
7,325
Institutional
921
Industrial
144
Other
144
Commercial
133
Agricultural / Open Space
126
Mixed Use
37
Construction by Era
1950-1979
2
1980-1999
6
2000+
1
Living in South Portland
Cumberland County · Maine
Zip Codes041020410604107
26,498
Population
2020 Census
8,830
Properties
$9K
Median Assessed
12.1
Square Miles
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.
Newburyport, MA · Federalist · 3,524 sq ft · 4 bed / 3 bath · Built 1800 · Historic District
NEP Property Intelligence Summary
ConditionC1Fire ClassBFlood ZoneXOwnerIndividualOccupancyOwner-Occupied
Purchased2018 (8yr)Permits11 totalSystems3 updatedLiensClearAssessed$1.6MOcean0.3 mi
EraPre-1940HistoricDesignatedRenovationRecentRadonZone 1
Cite this data
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.