Portland, ME 04109 ZIP Code Profile

Related Place Profiles:
Cushing Island, ME | Portland, ME

ZIP Code 04109: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Portland, ME 04109

Acceptable Alternative
Cushing Is, ME 04109
Cushing Island, ME 04109
Diamond Cove, ME 04109
Diamond Is, ME 04109
Diamond Island, ME 04109
Great Diamond Island, ME 04109
Grt Dia Is, ME 04109
Little Diamond Island, ME 04109
Ltle Dia Is, ME 04109

  • ZIP Code Type: STANDARD
  • County: Cumberland County
  • Centroid: Latitude 43.679, Longitude -70.202
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 0
  • PO Box Addresses: 0
  • Residential Addresses: 0
    • Multi-Family Addresses: 0
    • Single Family Addresses: 0

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


04109 ZIP Code Map

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Portland, ME 04109 Data & Demographics (As of July 1, 2017)


Total Population 96
Daytime Population: Workers 12
Daytime Population: Residents 33
Total Daytime Population (TDP) 45
Ratio TDP/Total Population1 0.47
Population in Households 96
Population in Familes 79
Population in Group Qrtrs 0
Population Density2 80
Diversity Index3 2


Median Household Income $64,480
Average Household Income $96,025
Per Capita Income $50,013


Total Housing Units 321 (100%)
Owner Occupied HU 46 (14.3%)
Renter Occupied HU 4 ( 1.2%)
Vacant Housing Units 271 (84.4%)
Median Home Value $410,000
Average Home Value $436,413


Total Households 50
Average Household Size 1.92
Family Households 35
Average Family Size 2
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.59% 0.41%
Households 0.56% 0.4%
Families 0.4% 0.57%
Median Household Income   -0.17%
Per Capita Income   0.95%

Portland, ME 04109 - Peer Comparisons by Rank and Percentile

The table below compares 04109 to the other 399 ZIP Codes in Maine by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 385 4th
Population Density # 149 63rd
Diversity Index # 392 2nd
Median Household Income # 40 90th
Per Capita Income # 8 98th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maine Census Data Comparison Tool.

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