Cliff Island, Portland, ME demographics:
population, income, and more

Total population
9
80.0% year-over-year change
Median household income
$89,712/yr
4.8% year-over-year change
Housing units
12
50.0% year-over-year change

Cliff Island population

How many people live in Cliff Island

Cliff Island is home to 9 residents, according to the most recent Census data. Gender-wise, 44.4% of Cliff Island locals are male, and 55.6% are female.

Total population
9
80.0% year-over-year change
Gender ratio
Male
44.4%
4
Female
55.6%
5
Value Percent YoY change
Male 4 44.4% 100.0%
Female 5 55.6% 66.7%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

Adults between 25 and 44 make up 33.3% of the population, while another 22.2% fall into the 45 to 64 bracket. Finally, around 33.3% are 65 or older.

Median age
55.7
Age breakdown
Under 15
11.1%
15 to 24
0%
25 to 44
33.3%
45 to 64
22.2%
Over 65
33.3%
Value Percent YoY change
Under 15 1 11.1% N/A
25 to 44 3 33.3% 200.0%
45 to 64 2 22.2% 0.0%
Over 65 3 33.3% 0.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 8 100% 60.0%
Racial breakdown
White
100%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0%
Other
0%
Value Percent
White 8 100%

Households in Cliff Island

A peek inside Cliff Island households

Cliff Island has 5 households, with an average of 2 members in each. Of these, 60% are families, while the remaining 60% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
5
25.0% year-over-year change
Average people per household
2
Non-family households
3
Family households
3
Value Percent YoY change
Non-family households 3 60% 50.0%
Family households 3 60% 200.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Cliff Island

The housing landscape of Cliff Island

Cliff Island's housing consists of 12 units, with 91.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.3% and offer a more compact, shared living style.

Housing units
12
50.0% year-over-year change
Housing types
Value Percent
1 unit, detached 11 91.7%
1 unit, attached 1 8.3%
Homes built since 2020
% year-over-year change

The age of buildings in Cliff Island

In Cliff Island, the median construction year is 1938. About 63.6% of homes were built before the 1940s, with another 9.1% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 7 63.6% 133.3%
Built between 1940 and 1949 1 9.1% 0.0%
Built between 1950 and 1959 2 18.2% 100.0%
Built between 1970 and 1979 1 9.1% 0.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Cliff Island occupancy rates

Out of the 5 occupied housing units in Cliff Island, 80% are owner-occupied, while 40% are lived in by tenants. Meanwhile, 58.3% of all homes on the local market sit vacant.

Occupied housing units
5
25.0% year-over-year change
Occupancy breakdown
Renter occupied
2
Owner occupied
4
Value Percent YoY
change
Renter occupied 2 40% 100.0%
Owner occupied 4 80% 33.3%
Unoccupied housing units
58.3%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Cliff Island housing costs

Median housing costs per month
$1,600/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Cliff Island

Cliff Island education at a glance

Another 14.3% earned an associate degree and 42.9% hold a bachelor’s. Meanwhile, 14.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
High school diploma 2 28.6% 100.0%
Associate degree 1 14.3% 0.0%
Bachelor's degree 3 42.9% 200.0%
Graduate degree 1 14.3% -50.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Cliff Island

How much people earn in Cliff Island

The average annual household income in Cliff Island was $115,500 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -0.5% change from the previous year. At the same time, the median income stood at $89,712, reflecting a +4.8% shift over the same period.

Average household income in Cliff Island
$115,500/year
-0.5% year-over-year change
Median household income in Cliff Island
$89,712/year
4.8% year-over-year change

Cliff Island income by age

Those with someone between 45 and 64 in charge, often well established professionally, earn $89,808 overall. Overall, 100% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
45 - 64 $89,808 N/A
Above poverty level
8
Below poverty level
0
Value Percent YoY
change
Above poverty level 8 100% 60.0%

Employment in Cliff Island

Workforce and job types in Cliff Island

33.3% of the working population are employed in professional or administrative positions, while 66.7% are in hands-on or service-based jobs. Also, 33.3% run their own businesses, 33.3% are employed by private companies, and 33.3% work in the public sector.

Workforce demographics

White collar
1
Blue collar
2
Value Percent YoY change
White collar 1 33.3% N/A
Blue collar 2 66.7% 100.0%
Employer type
Self employees
33.3%
Private companies
33.3%
Governmental workers
33.3%
Not for profit companies
0%
Value Percent YoY change
Self employees 1 33.3% 0.0%
Private companies 1 33.3% N/A
Governmental workers 1 33.3% N/A

Transportation in Cliff Island

How people get around in Cliff Island

Means of transportation
Value Percent YoY change
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Cliff Island by zipcode?

Zipcode Population Number of households Median income Average income
04019 93 55 $89,712 $115,500

Explore more communities

FAQs about Cliff Island demographics 

What is the total population of Cliff Island?

Cliff Island has a total population of 9 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +80.0% compared to a year ago.

What is the gender ratio in Cliff Island?

The gender ratio in Cliff Island is as follows:
  • 44.4% males (4 residents)
  • 55.6% females (5 residents)

What is the median age in Cliff Island?

The median age in Cliff Island is 55.7.

What is the age distribution of the population in Cliff Island?

The age distribution in Cliff Island is as follows:
  • Under 15: 11.1% (1 residents)
  • Ages 15-24: 0% ( residents)
  • Ages 25-44: 33.3% (3 residents)
  • Ages 45-64: 22.2% (2 residents)
  • Over 65: 33.3% (3 residents)

What is the racial and ethnic makeup of Cliff Island?

The racial and ethnic makeup of Cliff Island is as follows:
  • White: 100% (8 residents)
  • Black or African American: 0% ( residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% ( residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 0% ( residents)
  • Other: 0% ( residents)

What percentage of the population in Cliff Island are U.S.-born citizens?

U.S.-born citizens represent 100% of the population in Cliff Island.

How many housing units are there in Cliff Island?

There are 12 housing units in Cliff Island, reflecting a +50.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Cliff Island and what is the average household size?

Cliff Island has a total of 5 households, with an average of 2 people in each.

What is the median household income in Cliff Island?

Cliff Island has a median household income of $89,712, representing a +4.8% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Cliff Island?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 33.3% (1 residents)
  • Blue-collar workers: 66.7% (2 residents)

Places of employment:
  • Self-employed: 33.3% (1 residents)
  • Private companies: 33.3% (1 residents)
  • Governmental workers: 33.3% (1 residents)
  • Not-for-profit companies: 0% (0 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025