
Tracking 722 properties across Long Island, Maine. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
Long Island is a small island community in Casco Bay that separated from Portland in 1993 to form its own municipality. The island is accessible by Casco Bay Lines ferry and has a year-round population alongside seasonal residents. The housing stock is modest — cottages, small single-family homes, and a few larger properties.
For property professionals, Long Island is a very small island market where ferry access, limited infrastructure, and the seasonal population dynamic define every property consideration.
FEMA flood zones, fire protection grades, radon, coastal exposure, storm surge — parcel by parcel
54 properties (7%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
722 properties (100%) are within 3 miles of the ocean. 379 are classified as waterfront. The closest property is 0 ft from the coastline.
722 properties · Avg 50,900 sf
Cumberland County · Maine
Long Island covers 1.4 square miles in Cumberland County, Maine. The median assessed property value is $239K.
Single-family homes account for 355 of Long Island's 722 properties. About 12% of properties are owner-occupied, and 31% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $82K and $365K. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most properties rely on private septic systems. Electric service is provided by CENTRAL MAINE POWER CO.
Environmental note: Long Island has an average EPA lead paint indicator at the 71th percentile nationally. 720 properties exceed at least one EPA environmental justice threshold — a factor in lending compliance and environmental due diligence.
With 7% of properties in FEMA flood zones and 100% in the coastal zone, Long Island concentrates several major underwriting variables. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsLong Island's 6 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 solutionsCollateral assessment requires flood zone verification, environmental screening, and ownership chain validation. 7% of Long Island properties are in SFHAs where flood insurance is a federal lending requirement. NEP provides property-level compliance data from public records.
Lending solutionsUnderstanding a property's construction era, environmental exposure, and building characteristics before arriving on site transforms inspection from discovery to verification.
Inspection solutions722 Long Island 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/long-island-me. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.