Property Intelligence Report — South Portland, Maine

Federal data on flood, climate, radon, air quality and more. Free preview for any address in South Portland. $49 full report.

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Risk Scorecard

Radon Zone
Zone 2 — Moderate
Predicted average indoor radon screening level 2-4 pCi/L. EPA recommends radon testing.
Earthquake Risk
Minimal
8 events in past 10 years, max magnitude 3.8
Current Conditions
56°F
Partly Cloudy

Quick Stats

303,357
Population
$372,900
Median Home Value
$87,710
Median Income

South Portland at a Glance

South Portland is a solidly middle-class community with a median household income of $87,710 and a homeownership rate of nearly 70 percent, which reflects a neighborhood where people put down roots. The median home value of around $373,000 makes it accessible compared to many coastal Maine markets, though you're still paying for proximity to Portland and the water. With 46.5 percent of residents holding a bachelor's degree or higher, you'll find a fairly educated populace—the kind of place where people care about schools and community investments.

The natural hazard picture here is genuinely favorable. Earthquake risk is minimal; the area sits in a geologically stable zone with only eight recorded events over the past decade, all minor. Radon is the real consideration—South Portland falls into EPA Zone 2, which means moderate potential for radon gas in basements. Any home purchase should include radon testing, and mitigation systems are straightforward and affordable if needed.

This is fundamentally a working and professional community, not a vacation destination. You get the Maine waterfront lifestyle without the tourist-town chaos of Bar Harbor or Camden. The proximity to Portland's job market and cultural amenities, combined with reasonable housing costs and demographic stability, makes South Portland appealing for families and remote workers looking for New England authenticity.

Analysis based on federal data from FEMA, EPA, USGS, Census Bureau and NOAA. Generated September 2026.

Current Conditions

Tonight: 56°F — Partly Cloudy. Wind 5 mph N.

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