Portland-South Portland, ME · Maine

Cumberland County

ZIP 04103

305,940 residents1,571 permits TTM$92,983 median HHI38 ZIP codesUpdated April 16, 2026
Investor first look

Median home value

$411,400

ACS 5-Year

Cap rate proxy

4.4%

FMR × 0.65 ÷ Home Value

Rent-to-income

19.3%

HUD FMR ÷ ACS HHI

Net migration

+2.30%

IRS SOI

Permits (TTM)

1,571

Census BPS

Climate risk

77.0

FEMA NRI (0–100)

ZIP 04103

Median home value

Gross yield

Buy Box score

0.6

Section 8 gap

Affordability

P/I: 5.5R/I: 30.7%

Section 8 detail

SAFMR: Rent: Gap:
ZIP code breakdown38 ZIP codes
ZIPMedian home valueRent (FMR 2BR)Gross yieldBuy Box scoreSection 8 gap
040911.0
040290.9
040400.9
040090.9
040850.9
040550.9
042600.9
040150.9
040840.9
040920.9
040710.8
040390.8
040380.8
040620.8
040690.7
041060.7
040110.7
041030.6
040970.5
040210.5
040790.5
041020.5
041080.4
040740.4
040960.4
040320.3
041010.2
041070.2
041100.1
041050.1
04003
04017
04019
04024
04050
04057
04066
04109

Sort by any column. Click a ZIP for detail.

Demographics

Owner-occupied

70.4%

Census ACS

Vacancy rate

14.2%

Census ACS

Bachelor's degree +

52.2%

Census ACS

Rent burdened

44.6%

Census ACS (>30% income)

Median age

42.1

Census ACS

Data sources
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026